1,249 results on '"electrostimulation"'
Search Results
202. myHealth: a Mobile App for Home Muscle Rehabilitation
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Tiago Franco, Pedro Rangel Henriques, Paulo Alves, Maria Joao Varanda Pereira, Leonardo Sestrem, Paulo Leitao, and Alfredo Silva
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Electrostimulation ,Home treatment ,Wearable system ,Muscle rehabilitation ,mhealth - Abstract
The constant loss of functional capacity due to aging can lead to a less active and dignified life, especially if the necessary care is not taken. One of the treatments for muscle rehabilitation is electrostimulation, but it may require two or three visits to the clinic per week. In this paper is proposed a mobile application that serves as a key for minimizing the number of visits to the clinic. The proposed treatment for muscle rehabilitation is through a wearable system that can provide electrostimulation at the patient’s home. The developed application called myHealth will serve as the interface between the patient and the physician. Besides managing the treatment sessions, the app is also in charge of operating the wearable system during the session. Thus, the communication defined between the systems is flexible; some parameter can be adjusted during the session. In this way, algorithms that can improve treatment performance can be implemented in the future. The tests performed showed that the app could successfully execute all the steps of the proposed home treatment scenario. Index Terms—mhealth, electrostimulation, wearable info:eu-repo/semantics/publishedVersion
- Published
- 2022
203. Detection thresholds for electrostimulation combined with robotic leg support in sub-acute stroke patients
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Rikhof, Cindy J H, Gerdienke B, Prange-Lasonder, Erik C, Prinsen, Jaap H, Buurke, Johan S, Rietman, TechMed Centre, Biomechatronics and Rehabilitation Technology, Biomedical Signals and Systems, and Biomechanical Engineering
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Adult ,Stroke ,Leg ,Lower Extremity ,Electromyography ,Electrostimulation ,Robot ,Rehabilitation ,Stroke Rehabilitation ,Humans ,Electric Stimulation Therapy ,Robotics ,22/4 OA procedure - Abstract
Stroke is one of the leading causes of disability in adults in the European Union. It often leads to motor impairments, such as a hemiparetic lower extremity. Research indicates that early task-specific and intensive training promotes neuroplasticity and leads to recovery and/or compensation. One way to provide intensive training early after a stroke is via robot-supported training. A rehabilitation robot was designed by Life Science Robotics (Aalborg, Denmark) that can provide continuous repetitive movements of the hip, knee, and/or ankle in e.g., a lying position. In order to emphasize active contribution by the patient, actively triggered electrical stimulation (via muscle activation) can be combined with robotic assistance. The current study aims to compare different threshold estimation methods for detection of movement intention from muscle activity for actively triggered electrical stimulation during robot-supported leg movement in stroke patients. Three sub-acute stroke patients were included for a single measurement session. They performed knee extension and/or ankle dorsal flexion with four different threshold estimation methods to assess the intention detection threshold to initiate electrostimulation. The thresholds were based on the resting level of muscle activity (of m. rectus femoris or m. tibialis anterior) plus two or three times the standard deviation of the average resting value, or the resting level plus 5% or 10% of the peak muscle activity during a maximal voluntary contraction. The results showed that the method based on the resting muscle activity plus two times the standard deviation was the most stable across the three included stroke patients. This method had a detection success rate of 86.7% and was experienced as moderately comfortable. In conclusion, performing knee extension and/or ankle dorsal flexion with electromyography triggered electrostimulation is feasible in sub-acute stroke patients. Muscle activity-triggered electrostimulation combined with robotic support based on a threshold of resting levels plus two times the standard deviation seems to detect movement initiation most consistently in this small sample of sub-acute stroke patients.
- Published
- 2022
204. ДЕЯТЕЛЬНОСТЬ СЕРДЦА У ЛИЦ С ОФТАЛЬМОПАТОЛОГИЯМИ ПРИ ЭЛЕКТРОСТИМУЛЯЦИИ ЗРИТЕЛЬНОГО АНАЛИЗАТОРА
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электростимуляция ,гипоталамус ,гіпоталамус ,зрительный анализатор ,optical analyser ,heart activity ,електростимуляція ,electrostimulation ,деятельность сердца ,діяльність серця ,hypothalamus ,зоровий аналізатор - Abstract
The effect ofindirect through-skin electrostimulation ofthe optical analyser peripheral part on heart activity in persons with ophthalmopathologies has been studied. It has been shown, that the heart rate changes under electrostimulation effect, being the result of the central nervous systems vegetative centres excitement. Perhaps, that effect of electrostimulation in persons with ophthalmopathologies is the result ofthe activity of neurogenic regulation mechanisms., У лиц с офтальмопатологиями изучали влияние непрямой чрезкожной электростимуляции периферического отдела зрительного анализатора на деятельность сердца. Показано, что при действии электростимуляции изменяется частота сердечных сокращений, что является следствием возбуждения вегетативных центров центральной нервной системы. Допускается, что полученный эффект электростимуляции на кровообращение головного мозга у лиц с патологиями зрительной системы является результатом включения нейрогенных механизмов регуляции., У осіб з офтальмопатологіями вивчали вплив непрямої черезшкірної електростимуляції периферійного відділу зорового аналізатора на діяльність серця. Показано, що при дії електростимуляції змінюється частота серцевих скорочень, що є наслідком збудження вегетативних центрів центральної нервової системи. Припускається, що отриманий ефект електростимуляції на кровообіг головного мозку у осіб з офтальмопатологіями є результатом включення нейрогенних механізмів регуляції.
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- 2022
205. A Moderate Supplementation of Native Whey Protein Promotes Better Muscle Training and Recovery Adaptations Than Standard Whey Protein – A 12-Week Electrical Stimulation and Plyometrics Training Study.
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Garcia-Vicencio, Sebastian, Ratel, Sébastien, Gryson, Céline, Masgrau, Aurélie, Piponnier, Enzo, Brasy, Jacqueline, Ruyet, Pascale Le, Bucas, Marion, Barachon, Nicolas, Visseaux, Victoire, Connan, Yann, Montel, Florence, Lahaye, Clément, Boirie, Yves, and Martin, Vincent
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WHEY proteins ,MUSCLE physiology ,ELECTRIC stimulation ,MUSCLE fatigue ,CARBOHYDRATES - Abstract
The purpose of this study was to assess if native whey protein (NW) supplementation could promote recovery and training adaptations after an electrostimulation (ES) training program combined to plyometrics training. Participants were allocated into three groups, supplemented 5 days/week, either with 15 g of carbohydrates + 15 g of NW (n = 17), 15 g of carbohydrates + 15 g of standard whey protein (SW; n = 15), or placebo (PLA; 30 g of carbohydrates; n = 10), while undergoing a 12-week ES training program of the knee extensors. Concentric power (Pmax) was evaluated before, immediately after, as well as 30 min, 60 min, 24 h, and 48 h after the 1st, 4th and last ES training session. The maximal voluntary contraction torque (MVC), twitch amplitude, anatomical cross-sectional area (CSA) and maximal voluntary activation level (VA) were measured before (T0), and after 6 (T1) and 12 weeks of training (T2). P
max recovery kinetics differed between groups (p < 0.01). Pmax started to recover at 30 min in NW, 24 h in SW and 48 h in PLA. Training adaptations also differed between groups: MVC increased between T0 and T2 in NW (+11.8%, p < 0.001) and SW (+7.1%, p < 0.05), but not PLA. Nevertheless, the adaptation kinetics differed: MVC increased in NW and SW between T0 and T1, but an additional gain was only observed between T1 and T2 in NW. VA declined at T1 and T2 in PLA (−3.9%, p < 0.05), at T2 in SW (−3.5%, p < 0.05), and was unchanged in NW. CSA increased, but did not differ between groups. These results suggest that NW could promote a faster recovery and neuromuscular adaptations after training than SW. However, the mechanisms underlying this effect remain to be identified. [ABSTRACT FROM AUTHOR]- Published
- 2018
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206. Electrostimulation is an effective and safe method for semen collection in medium-sized lizards.
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López Juri, Guadalupe, Chiaraviglio, Margarita, and Cardozo, Gabriela
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ARTIFICIAL insemination , *SEMEN analysis , *LIZARD reproduction , *ANTHERIDIA , *SPERMATOZOA analysis - Abstract
The development of safe and consistent semen collection protocols should be ensured to understand basic sperm parameters of a species. Electroejaculation has been hypothesized and tested to be a safe method to evaluate male reproductive potential in wild animals. However, little is known about semen collection protocols in lizards. Adjusting stimulation to species and body mass is important for efficient semen collection as well as for animal welfare. Tropidurus spinulosus is a good model to adapt electrostimulation; it is a medium-sized lizard species, males have semen during a long period and operative sex ratio is male-biased. We aimed to provide a thorough and safe method for collecting semen samples from this animal model by means of electrostimulation and characterize basic sperm parameters. Mature males of T. spinulosus were captured and their testicular volume was evaluated via portable ultrasound scanning. The lizards were electrostimulated by performing standardized series of stimuli. Semen was obtained successfully in 94% of the males. Samples were contamination-free. Mean sperm number of ejaculates was 2.1 ± 1.8 × 10 6 spermatozoids. The percentage of motile spermatozoa was 78% and sperm dynamic parameters were: VSL 37.26 ± 7.72 μ/s and VCL 84.26 ± 16.27 μ/s. We observed high variability in testicular volume among males; however, almost all the individuals had sperm. Electrostimulation using protocols adjusted to a medium-sized lizard was an effective semen collection method that allowed us to obtain semen samples with high motility (percentage of motile spermatozoa and sperm velocity). [ABSTRACT FROM AUTHOR]
- Published
- 2018
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207. Dependence of excitability indices on membrane channel dynamics, myelin impedance, electrode location and stimulus waveforms in myelinated and unmyelinated fibre models.
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Tarnaud, Thomas, Joseph, Wout, Martens, Luc, and Tanghe, Emmeric
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ELECTRODES , *NEURONS , *IMPEDANCE spectroscopy , *POLARITY (Physics) , *WAVE analysis - Abstract
Neuronal excitability is determined in a complex way by several interacting factors, such as membrane dynamics, fibre geometry, electrode configuration, myelin impedance, neuronal terminations[Formula: see text] This study aims to increase understanding in excitability, by investigating the impact of these factors on different models of myelinated and unmyelinated fibres (five well-known membrane models are combined with three electrostimulation models, that take into account the spatial structure of the neuron). Several excitability indices (rheobase, polarity ratio, bi/monophasic ratio, time constants[Formula: see text]) are calculated during extensive parameter sweeps, allowing us to obtain novel findings on how these factors interact, e.g. how the dependency of excitability indices on the fibre diameter and myelin impedance is influenced by the electrode location and membrane dynamics. It was found that excitability is profoundly impacted by the used membrane model and the location of the neuronal terminations. The approximation of infinite myelin impedance was investigated by two implementations of the spatially extended non-linear node model. The impact of this approximation on the time constant of strength-duration plots is significant, most importantly in the Frankenhaeuser-Huxley membrane model for large electrode-neuron separations. Finally, a multi-compartmental model for C-fibres is used to determine the impact of the absence of internodes on excitability. Graphical Abstract Electrostimulation models, obtained by combining five membrane models with three representations of the neuronal cable equation, are fed with electrode and stimulus input parameters. The dependency of neuronal excitability on the interaction of these input parameters is determined by deriving excitability indices from the spatiotemporal model response. The impact of the myelin impedance and the fibre diameter on neural excitability is also considered. [ABSTRACT FROM AUTHOR]
- Published
- 2018
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208. Correction of presbyopia: An integrated update for the practical surgeon.
- Author
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D. Balgos, Marie, Vargas, Veronica, and Alió, Jorge
- Abstract
Presbyopia results from loss or insufficiency of the eye's accommodative ability, and clinically manifests as the inability to focus near objects on the retina. It is one of the most common causes of visual impairment worldwide especially in adults of productive or working age. Various means of compensating for the loss of accommodative ability have been devised from optical tools such as spectacles and contact lenses, to topical medications and to surgical procedures. A comprehensive search on journal articles about topical and surgical correction of presbyopia was undertaken. The various techniques for presbyopia correction, as enumerated in these articles, are discussed in this paper with the addition of our personal experience and perspective on the future of these techniques. [ABSTRACT FROM AUTHOR]
- Published
- 2018
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209. Etiology, Evaluation, and Treatment of Failed Back Surgery Syndrome.
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Sebaaly, Amer, Lahoud, Marie-José, Rizkallah, Maroun, Kreichati, Gaby, and Kharrat, Khalil
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SPINAL surgery , *SPINAL fusion , *LAMINECTOMY , *DIAGNOSIS , *FAILED back surgery syndrome , *THERAPEUTICS - Abstract
The study aimed to review the etiology of failed back surgery syndrome (FBSS) and to propose a treatment algorithm based on a systematic review of the current literature and individual experience. FBSS is a term that groups the conditions with recurring low back pain after spine surgery with or without a radicular component. Since the information on FBSS incidence is limited, data needs to be retrieved from old studies. It is generally accepted that its incidence ranges between 10% and 40% after lumbar laminectomy with or without fusion. Although the etiology of FBSS is not completely understood, it is possibly multifactorial, and the causative factors may be categorized into preoperative, operative, and postoperative factors. The evaluation of patients with FBSS symptoms should ideally initiate with reviewing the patients' clinical history (observing "red flags"), followed by a detailed clinical examination and imaging (whole-body X-ray, magnetic resonance imaging, and computed tomography). FBSS is a complex and difficult pathology, and its accurate diagnosis is of utmost importance. Its management should be multidisciplinary, and special attention should be provided to cases of recurrent disc herniation and postoperative spinal imbalance. [ABSTRACT FROM AUTHOR]
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- 2018
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210. Brain Plasticity: Limitations and Possibilities.
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Kharchenko, E. P. and Tel’nova, M. N.
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NEUROPLASTICITY ,STEM cell transplantation ,BRAIN ,EPIGENETICS ,STIMULUS & response (Biology) - Abstract
We present a brief review of the biological limitations, associated with regeneration of the brain and transplantation of stem cells into it, as well as factors influencing brain plasticity after injury, including epigenetic regulatory mechanisms. Noninvasive transcranial microelectrostimulation provides a potential multisystems stimulus for the endogenous mechanisms of recovery of the brain. [ABSTRACT FROM AUTHOR]
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- 2018
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211. Effects of electrostimulation associated with masticatory training in individuals with down syndrome.
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da Silva Alves Pinheiro, Denilma Lígia, dos Santos Alves, Giorvan Ânderson, Montenegro Fausto, Fernanda Magda, de Figueiredo Pessoa, Luciane Spinelli, da Silva, Lidiane Assis, de Freitas Pereira, Suzana Maria, and de Almeida, Larissa Nadjara Alves
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- 2018
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212. Efeitos da eletroestimulação associada ao treino mastigatório em pessoas com síndrome de down.
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da Silva Alves Pinheiro, Denilma Lígia, dos Santos Alves, Giorvan Ânderson, Montenegro Fausto, Fernanda Magda, de Figueiredo Pessoa, Luciane Spinelli, da Silva, Lidiane Assis, de Freitas Pereira, Suzana Maria, and de Almeida, Larissa Nadjara Alves
- Published
- 2018
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213. ns Pulsed Electric Field-Induced Action Potentials in the Circuital Model of an Axon.
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Lamberti, Patrizia, Compitiello, Michele, and Romeo, Stefania
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Pulsed electric fields with duration in the sub- $\mu \text{s}$ and ns time scale (nsPEFs) increase the permeability of cell membranes, enabling the transport of normally impermeant molecules into or out of the cell (electroporation). Such effect is associated to intracellular alterations and indicates nsPEFs as a new stimulus to modulate cell functions. In particular, studies dealing with the application of nsPEFs to excitable cells suggest their use for the stimulation/inhibition of cell excitation. In this paper, the circuital model per surface unit of the plasma membrane of an axon was developed to implement the Hodgkin and Huxley equations, describing the action potential activation process. For the first time, a power electronics circuital simulator was adopted. The model was first validated with conventional microsecond stimuli, and then it was employed to identify the conditions for cell excitation by nsPEFs. The results demonstrated the possibility of electrostimulation by nsPEFs at depolarization levels far below those required for inducing electroporation, and with ionic current dynamics similar to that induced by conventional stimuli, confirming recent experimental findings. Moreover, by using a power electronics tool, easier integration of the cell modeling with the design and optimization of pulse generation systems can be gained. [ABSTRACT FROM AUTHOR]
- Published
- 2018
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214. PRELIMINARY RESULTS REGARDING ELECTROSTIMULATION OF THE PHYSIOLOGICAL RITHM BY USING CONTINUOUS ELECTRIC CURRENT IN PEPPER CROPS.
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M., GHEORGHIŢOAIE, V., ACHIŢEI, G. C., TELIBAN, and V., STOLERU
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ELECTRIC currents ,PLANT development ,SWEET peppers ,FLOWERING of plants ,ELECTRICAL load - Abstract
Copyright of Lucrari Stiintifice, Universitatea de Stiinte Agricole Si Medicina Veterinara Ion Ionescu de la Brad Iasi, Seria Horticultura is the property of University of Agricultural Sciences and Veterinary Medicine (Editura Ion Ionescu de la Brad) and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2018
215. Electric Stimulation and Pudendal Evoked Potential Recordings for Management of Stress Incontinence in Women
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Koutsojannis, Constantinos M., Magjarevic, R., editor, Nagel, J. H., editor, Vander Sloten, Jos, editor, Verdonck, Pascal, editor, Nyssen, Marc, editor, and Haueisen, Jens, editor
- Published
- 2009
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216. A New Concept of an Electrostimulative Acetabular Revision System with Patient Individual Additional Fixation
- Author
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Kluess, Daniel, Souffrant, R., Bader, R., van Rienen, U., Ewald, H., Mittelmeier, W., Magjarevic, R., editor, Nagel, J. H., editor, Vander Sloten, Jos, editor, Verdonck, Pascal, editor, Nyssen, Marc, editor, and Haueisen, Jens, editor
- Published
- 2009
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217. Elektrotherapie bei bradykarden oder tachykarden Rhythmusstörungen und akutem Koronarsyndrom
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Trappe, Hans-Joachim and Trappe, Hans-Joachim, editor
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- 2009
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218. Überaktive Blase – wann welche Therapie?
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Pannek, J.
- Abstract
Copyright of Der Urologe A is the property of Springer Nature and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2017
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219. Análise comparativa do pico de força e controle motor do músculo tibial anterior após cinesioterapia e estimulação neuromuscular.
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dos S. Alves, Daziane, Gustavo Braz, Allison, Machado, Euller Cunha F., Assis Moraes, Franciane, and Paschoal Prado, Rodrigo
- Abstract
Copyright of Revista Brasileira de Ciência e Movimento: RBCM is the property of Revista Brasileira de Ciencia e Movimento and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2017
220. Comparing intensities and modalities within the sensory attenuation paradigm: Preliminary evidence.
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Burin, Dalila, Battaglini, Alvise, Pia, Lorenzo, Falvo, Giusy, Palombella, Mattia, and Salatino, Adriana
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VIBROTACTILE stimulation , *SOMATOSENSORY disorders , *NOCICEPTIVE pain , *PARADIGM (Theory of knowledge) , *IDENTITY fusion - Abstract
It is well-documented that the intensity of a self-generated somatosensory stimulus is perceived to be attenuated in respect to an identical stimulus generated by others. At present, it is not clear whether such a phenomenon, known as somatosensory attenuation, is based not only on feedforward motor signals but also on re-afferences towards the body. To answer this question, in the present pilot investigation on twelve healthy subjects, three types of stimulations (sensory non-nociceptive electrical – ES, nociceptive electrical – NES, and vibrotactile – VTS) and intensities (1 = sensory threshold ∗ 2.5 + 2 mA, 2 = sensory threshold ∗ 2.5 + 3 mA, 3 = sensory threshold ∗ 2.5 + 4 mA for ES and NES; 1 = sensory threshold ∗ 2 Hz , 2 = sensory threshold ∗ 3 Hz , 3 = sensory threshold ∗ 4 Hz for VTS) have been directly compared in a somatosensory attenuation paradigm. The results show that the attenuation effect emerged only with electrical stimuli and that it increased with higher intensities. These pilot findings suggest that, depending on the type and the intensity of stimulation, re-afferences can have a role in somatosensory attenuation. Additionally, it is possible to speculate the effect is present only with electrical stimuli because those stimuli are prospectively judged as potentially dangerous. This, in turn, would optimize planning successful reactions to incoming threatening stimuli. [ABSTRACT FROM AUTHOR]
- Published
- 2017
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221. Combined use of modulated ultrasound and electric current stimulation for diabetic foot ulcers: a case series.
- Author
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O'Connor, T., Moore, Z., Patton, D., Wilson, P., Gillen, C., Hughes, M., and Reilly, A.
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FOOT ulcers ,ELECTRIC stimulation ,ULTRASONIC imaging ,WOUND healing ,DIABETIC foot ,TREATMENT effectiveness ,THERAPEUTICS - Abstract
Objective: Diabetic foot ulcers (DFUs) are a significant challenge in wound care practice. Our aim was to evaluate the combined use of of two therapies, ultrasound and electrostimulation, in the treatment of DFUs. Method: This study employed a prospective, non-comparative, case series design, undertaken in a podiatry-led diabetic foot clinic, in an acute hospital setting, in an urban location in Ireland. We recruited patinets with hard-to-heal DFUs who were treated twice a week with combined modulated ultrasound and electric current stimulation. Results: We recruited seven patients with eight chronic DFUs. A mean wound size reduction of 71% was achieved and there were no adverse reactions to the therapy. Conclusion: The results of this small case series indicate that combined modulated ultrasound and electric current stimulation offers promise as an adjunct therapy for DFUs. Further large scale trials are now warranted. Declaration of interest: The authors have no conflict of interest to declare. [ABSTRACT FROM AUTHOR]
- Published
- 2017
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222. Hypertrophy Stimulation at the Onset of Type I Diabetes Maintains the Soleus but Not the EDL Muscle Mass in Wistar Rats.
- Author
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Fortes, Marco A. S., Scervino, Maria V. M., Marzuca-Nassr, Gabriel N., Vitzel, Kaio F., da Justa Pinheiro, Carlos H., and Curi, Rui
- Subjects
MUSCLE mass ,MUSCLE strength ,PROTEIN synthesis ,MUSCULAR hypertrophy ,SKELETAL muscle ,TYPE 1 diabetes ,LABORATORY rats ,PATIENTS - Abstract
Diabetes mellitus induces a reduction in skeletal muscle mass and strength. Strength training is prescribed as part of treatment since it improves glycemic control and promotes increase of skeletal muscle mass. The mechanisms involved in overload-induced muscle hypertrophy elicited at the establishment of the type I diabetic state was investigated in Wistar rats. The purpose was to examine whether the overload-induced hypertrophy can counteract the hypotrophy associated to the diabetic state. The experiments were performed in oxidative (soleus) or glycolytic (EDL) muscles. PI3K/Akt/mTOR protein synthesis pathway was evaluated 7 days after overload-induced hypertrophy of soleus and of EDL muscles. The mRNA expression of genes associated with different signaling pathways that control muscle hypertrophy was also evaluated: mechanotransduction (FAK), Wnt/b-catenin, myostatin, and follistatin. The soleus and EDL muscles when submitted to overload had similar hypertrophic responses in control and diabetic animals. The increase of absolute and specific twitch and tetanic forces had the same magnitude as muscle hypertrophic response. Hypertrophy of the EDL muscle from diabetic animals mostly involved mechanical loading-stimulated PI3K/Akt/mTOR pathway besides the reduced activation of AMP-activated protein kinase (AMPK) and decrease of myostatin expression. Hypertrophy was more pronounced in the soleus muscle of diabetic animals due to a more potent activation of rpS6 and increased mRNA expression of insulin-like growth factor-1 (IGF-1), mechano-growth factor (MGF) and follistatin, and decrease of myostatin, MuRF-1 and atrogin-1 contents. The signaling changes enabled the soleus muscle mass and force of the diabetic rats to reach the values of the control group. [ABSTRACT FROM AUTHOR]
- Published
- 2017
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223. Nervous system modulation through electrical stimulation in companion animals
- Author
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Débora Gouveia, Ana Cardoso, Ângela Martins, Darryl L. Millis, Óscar Gamboa, and António Ferreira
- Subjects
medicine.medical_specialty ,medicine.medical_treatment ,Veterinary medicine ,Stimulation ,Review ,03 medical and health sciences ,0302 clinical medicine ,Physical medicine and rehabilitation ,SF600-1100 ,medicine ,Dog ,Functional electrical stimulation ,Functionality ,Spinal cord injury ,Neurorehabilitation ,030304 developmental biology ,0303 health sciences ,Spinal cord ,Rehabilitation ,General Veterinary ,Transcranial direct-current stimulation ,business.industry ,Cat ,General Medicine ,medicine.disease ,medicine.anatomical_structure ,Electrostimulation ,business ,Neurorehabilitation modalities ,030217 neurology & neurosurgery ,Neuroanatomy - Abstract
Domestic animals with severe spontaneous spinal cord injury (SCI), including dogs and cats that are deep pain perception negative (DPP−), can benefit from specific evaluations involving neurorehabilitation integrative protocols. In human medicine, patients without deep pain sensation, classified as grade A on the American Spinal Injury Association (ASIA) impairment scale, can recover after multidisciplinary approaches that include rehabilitation modalities, such as functional electrical stimulation (FES), transcutaneous electrical spinal cord stimulation (TESCS) and transcranial direct current stimulation (TDCS). This review intends to explore the history, biophysics, neurophysiology, neuroanatomy and the parameters of FES, TESCS, and TDCS, as safe and noninvasive rehabilitation modalities applied in the veterinary field. Additional studies need to be conducted in clinical settings to successfully implement these guidelines in dogs and cats.
- Published
- 2021
224. Chronic electrostimulation of the trigeminal ganglion in trigeminal neuropathy: current state and future prospects
- Author
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Mehrkens, Jan H., Steude, U., Steiger, H. -J., editor, Sakas, Damianos E., editor, and Simpson, Brian A., editor
- Published
- 2007
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225. Rapid Alleviation of Parkinson’s Disease Symptoms via Electrostimulation of Intrinsic Auricular Muscle Zones
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Yusuf O. Cakmak, Hülya Apaydin, Güneş Kiziltan, Ayşegül Gündüz, Burak Ozsoy, Selim Olcer, Hakan Urey, Ozgur O. Cakmak, Yasemin G. Ozdemir, and Sibel Ertan
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Parkinson’s disease ,electrostimulation ,auricular muscles ,PPN ,STN ,mesencephalon ,Neurosciences. Biological psychiatry. Neuropsychiatry ,RC321-571 - Abstract
Background: Deep brain stimulation of the subthalamic nucleus (STN-DBS) and the pedunculopontine nucleus (PPN) significantly improve cardinal motor symptoms and postural instability and gait difficulty, respectively, in Parkinson’s disease (PD).Objective and Hypothesis: Intrinsic auricular muscle zones (IAMZs) allow the potential to simultaneously stimulate the C2 spinal nerve, the trigeminal nerve, the facial nerve, and sympathetic and parasympathetic nerves in addition to providing muscle feedback and control areas including the STN, the PPN and mesencephalic locomotor regions. Our aim was to observe the clinical responses to IAMZ stimulation in PD patients.Method: Unilateral stimulation of an IAMZ, which includes muscle fibers for proprioception, the facial nerve, and C2, trigeminal and autonomic nerve fibers, at 130 Hz was performed in a placebo- and sham-controlled, double-blinded, within design, two-armed study of 24 PD patients.Results: The results of the first arm (10 patients) of the present study demonstrated a substantial improvement in Unified Parkinson’s Disease Ratings Scale (UPDRS) motor scores due to 10 min of IAMZ electrostimulation (p = 0.0003, power: 0.99) compared to the placebo control (p = 0.130). A moderate to large clinical difference in the improvement in UPDRS motor scores was observed in the IAMZ electrostimulation group. The results of the second arm (14 patients) demonstrated significant improvements with dry needling (p = 0.011) and electrostimulation of the IAMZ (p < 0.001) but not with sham electrostimulation (p = 0.748). In addition, there was a significantly greater improvement in UPDRS motor scores in the IAMZ electrostimulation group compared to the IAMZ dry needling group (p < 0.001) and the sham electrostimulation (p < 0.001) groups. The improvement in UPDRS motor scores of the IAMZ electrostimulation group (ΔUPDRS = 5.29) reached moderate to high clinical significance, which was not the case for the dry needling group (ΔUPDRS = 1.54). In addition, both arms of the study demonstrated bilateral improvements in motor symptoms in response to unilateral IAMZ electrostimulation.Conclusion: The present study is the first demonstration of a potential role of IAMZ electrical stimulation in improving the clinical motor symptoms of PD patients in the short term.
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- 2017
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226. Auricular Transcutaneous Vagus Nerve Stimulation Acutely Modulates Brain Connectivity in Mice
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Andrés Ozaita, Rafael Maldonado, Guadalupe Soria, Emma Muñoz-Moreno, Ianire Gallego-Amaro, Antoni Ivorra, and Cecilia Brambilla-Pisoni
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Nervous system ,Memory persistence ,medicine.medical_treatment ,Male mice ,Stimulation ,Nervi vague ,Vagus nerve ,Cellular and Molecular Neuroscience ,Epilepsy ,Memory ,c-Fos functional networks ,medicine ,Brain connectivity ,Auricular transcutaneous vagus nerve stimulation ,Cervell ,business.industry ,Estimulació elèctrica ,Brain ,Cognition ,medicine.disease ,medicine.anatomical_structure ,Isoflurane ,Electrostimulation ,Locus coeruleus ,Electric stimulation ,business ,Neuroscience ,Vagus nerve stimulation ,medicine.drug ,Memòria - Abstract
BackgroundBrain electrical stimulation techniques take advantage of the intrinsic plasticity of the nervous system, opening a wide range of therapeutic applications. Vagus nerve stimulation (VNS) is an approved adjuvant for drug-resistant epilepsy and depression. Its non-invasive form, auricular transcutaneous VNS (atVNS), is under investigation for applications, including cognitive improvement.ObjectiveWe aimed to study the effects of atVNS on brain connectivity, under conditions that improved memory persistence in CD-1 male mice.MethodsAcute atVNS in the cymba conchae of the left ear was performed using a standard stimulation protocol under light isoflurane anesthesia, immediately or 3 h after the training/familiarization phase of the novel object-recognition memory test (NORT). Another cohort of mice was used for bilateral c-Fos analysis after atVNS administration. Spearman correlation of c-Fos density between each pair of the thirty brain regions analyzed allowed obtaining the network of significant functional connections in stimulated and non-stimulated control brains.ResultsNORT performance was enhanced when atVNS was delivered just after, but not 3 h after, the familiarization phase of the task. No alterations in c-Fos density were associated to electrostimulation, but a significant effect of atVNS was observed on c-Fos-based functional connectivity. atVNS induced a clear reorganization of the network, increasing the inter-hemisphere connections and the connectivity of locus coeruleus.ConclusionOur results provide new insights in the effects of atVNS on memory performance and brain connectivity extending our knowledge of the biological mechanisms of bioelectronics in medicine.HighlightsatVNS, delivered immediately after NORT training phase, improves memory persistenceatVNS did not promote significant changes in brain c-Fos densityatVNS induced a significant reorganization of c-Fos-based functional brain networkatVNS produced an enhancement in correlated activity between hemispheresatVNS did not engage the prefrontal-retrosplenial axis, characteristic of the DMN
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- 2022
227. Limitations in using rabbit bladders in electrophysiological and urodynamic experiments
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P. Zerhau, Z. Mackerle, M. Husar, E. Brichtova, D. Sochurkova, E. Göpfert, and M. Faldyna
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electrostimulation ,rabbit detrusor ,intravesical pressure ,micturition ,abdominal pressure ,Veterinary medicine ,SF600-1100 - Abstract
The aim of this study was to explore the possibility of using rabbit bladder as a model for experimental detrusor electrostimulation research. In a study of urinary bladder activity induced through electrostimulation of the ventral roots, the functional and morphological parameters of the rabbit detrusor were investigated. Under general anaesthesia, open electrostimulation of ventral spinal roots leading towards the detrusor (usually S2, S3) was performed in 20 rabbits. Detrusor response was recorded by repeated electromyography and cystometry in two groups: animals with naturally concentrated urine content (Group A, eight rabbits) and animals after flushing and filling the bladder with saline (Group B, 12 rabbits). Histological examination of bladder wall was performed in both groups. The measured values were compared to one another as well as with data from the veterinary and human literature. The histological specimens were compared with histological specimens of human bladder. The reaction of detrusor fibres was detectable by electromyography in all cases. Elevation of intravesical pressure as a consequence of detrusor contraction was more difficult to detect, as this depends more on the density of the intravesical content. The pressure rise in Group B had a higher amplitude - up to 15 cm H2O versus 5 cm H2O in the first group (P = 0.00046). Histological examination of bladder wall from the two groups of rabbits showed no differences. In comparison with the bladder wall in humans, the only differences found were significantly thinner detrusor layers relative to the overall thickness of bladder wall. It is possible to use rabbit bladder for research into experimentally electrostimulation-induced activity of the detrusor or for experimental detrusor reinnervation research. It is necessary, however, to take into account certain limits - the lower contractility of the bladder wall and the need for qualitative control of bladder content. The present results also suggest that the physiological micturition of rabbits is probably more dependent on abdominal pressure than in humans.
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- 2014
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228. RESEARCH ON REDUCING THE LENGTH OF MATURATION IN USING ELECTROSTIMULATION OF BEEF
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FELICIA DIMA and CAMELIA VIZIREANU
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electrostimulation ,beef ,maturation ,sensory analysis ,Chemical technology ,TP1-1185 - Abstract
From technological point of view in the food industry has been obtained meat maturation using different methods: storage under controlled conditions, the use of enzymes or mechanical equipment tenderization musculature. Was also reported that electrical stimulation of carcasses immediately after slaughter procedure can increase the degree of maturation of the meat. Meat and meat products are subjected to reduce during chilling and freezing temperatures principal for reasons of conservation or meat packing. Particular attention must be paid to temperature control, especially before rigor mortis, knowing that too rapid cooling could lead to a cold shortening or thaw rigor during the thaw. During application of the electrostimulation process, occur physical and biochemical changes, meaning that this one has some effect on the technological properties of meat. It has obtained a reduction of maturation of beef with the electrostimulation of half-carcasses of cattle, verified by the increase of non-protein nitrogen in meat. The same time it has been considerably improved the texture and firmness of the muscles, which allows the use of beef in fast food products (ready to cook). Researches have revealed the conclusion that the use of the portable device for electrostimulation, in the described conditions, has induced positive transformations improving meat quality of adult beef.
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- 2014
229. Cell Responses to Electrical Pulse Stimulation for Anticancer Drug Release
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Anna Puiggalí-Jou, Luis J. del Valle, and Carlos Alemán
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anticancer activity ,cell damage ,conducting polymer ,drug delivery ,electrostimulation ,nanoparticles ,polycaprolactone ,polyesters ,Technology ,Electrical engineering. Electronics. Nuclear engineering ,TK1-9971 ,Engineering (General). Civil engineering (General) ,TA1-2040 ,Microscopy ,QH201-278.5 ,Descriptive and experimental mechanics ,QC120-168.85 - Abstract
Electrical stimulation is an attractive approach to tune on-demand drug release in the body as it relies on simple setups and requires typically 1 V or less. Although many studies have been focused on the development of potential smart materials for electrically controlled drug release, as well as on the exploration of different delivery mechanisms, progress in the field is slow because the response of cells exposed to external electrical stimulus is frequently omitted from such investigations. In this work, we monitor the behavior of prostate and breast cancer cells (PC-3 and MCF7, respectively) exposed to electroactive platforms loaded with curcumin, a hydrophobic anticancer drug. These consist in conducting polymer nanoparticles, which release drug molecules by altering their interactions with polymer, and electrospun polyester microfibres that contain electroactive nanoparticles able to alter the porosity of the matrix through an electro-mechanical actuation mechanism. The response of the cells against different operating conditions has been examined considering their viability, metabolism, spreading and shape. Results have allowed us to differentiate the damage induced in the cell by the electrical stimulation from other effects, as for example, the anticancer activity of curcumin and/or the presence of curcumin-loaded nanoparticles or fibres, demonstrating that these kinds of platforms can be effective when the dosage of the drug occurs under restricted conditions.
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- 2019
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230. Whole-body electromyostimulation as a means to impact muscle mass and abdominal body fat in lean, sedentary, older female adults: subanalysis of the TEST-III trial
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Kemmler W and von Stengel S
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Electrostimulation ,exercise ,aged ,muscle ,abdominal fat ,sarcopenia ,Geriatrics ,RC952-954.6 - Abstract
Wolfgang Kemmler, Simon von StengelInstitute of Medical Physics, University of Erlangen-Nürnberg, Erlangen, GermanyBackground: The primary aim of this study was to determine the effect of 12 months of whole-body electromyostimulation (WB-EMS) exercise on appendicular muscle mass and abdominal fat mass in subjects specifically at risk for sarcopenia and abdominal obesity, but unable or unwilling to exercise conventionally.Methods: Forty-six lean, nonsportive (
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- 2013
231. Electrochemical and Biogeochemical Interactions under dc Electric Fields
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Alshawabkeh, Akram N., Maillacheruvu, Krishnanand, Smith, James A., editor, and Burns, Susan E., editor
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- 2002
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232. Urinary incontinence: Clinical observation on 30 patients undergoing treatment with F.R.E.M.S (Frequency Rhythmic Electrical Modulation System)
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Massimo Massari, Patrizia Desideri, Paolo Menchinelli, Lucia Cerrito, and Luciano De Giovanni
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Urge incontinence ,F.R.E.M.S. ,Lorenz therapy ,Neuromodulation ,Electrostimulation ,Diseases of the genitourinary system. Urology ,RC870-923 - Abstract
Aim of the study: Urge incontinence is considered to be a dysfunctional pathology of social interest due to the psychological and relational implications of such disability, the elevated number of affected patients and the consequent treatment costs. We propose an innovative non-pharmacological and non-invasive care methodology: Frequency rhythmic electrical modulation system (F.R.E.M.S.) therapy (FT), based on the administration of electric fields of monophasic pulsed, negative, asymmetric current, generated by a neurostimulator with the characteristics of low variable frequency, high voltage and very low impulse duration. Material and Methods: 30 patients were studied with urodynamic evaluation and radiological diagnostic techniques, and underwent 2 cycles of 15 days therapy, with a 12 months follow-up. Results: In 93% of cases, we obtained a positive result, with either disappearance or improvement of symptoms. Conclusion: Although the Authors believe that clinical results deserve further neurohistological and immunohistochemical studies, in order to define the anathomophysiological and biochemical changes induced by FT, they propose it as a possible alternative to traditional pharmacological therapy and electrical stimulation.
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- 2015
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233. Wireless retina implant with optical energy supply
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Yves Olsommer, Peter Szurman, Thorsten Knoll, Kai Januschowski, Klaus-Peter Hoffmann, Loic Sermeus, Tino Jaeger, Frank Stracke, Ronan Le Harzic, Thomas Velten, Michael Rammensee, Oliver Kurz, Stephan Klesy, and Publica
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Retina ,business.industry ,Computer science ,Biomedical Engineering ,electrostimulation ,retina implant ,medicine.anatomical_structure ,retinitis pigmentosa ,medicine ,Optoelectronics ,Wireless ,Medicine ,Implant ,sense organs ,business ,Optical energy - Abstract
We present the first results of work towards a foil-based epiretinal prosthesis that can stimulate retinal cells. The prosthesis receives trigger signals and energy in the form of high intensity infrared radiation. Array-like silicon photodiodes with attached thin film electrodes convert the received infrared light into electrical stimulation signals, which are intended to stimulate ganglion cells. The photodiodes are arranged like stones in a mosaic on an only 10 µm thin and thus flexible polymer foil. Like this, the prosthesis can adapt to the curved shape of the eye and will have close contact with the retina. The photodiode array is fabricated on silicon wafers. Etched trenches guarantee the electrical separation between the individual photodiodes and pixels. Spectral sensitivities of backside-illuminated photodiodes were measured for wafers thinned to different thicknesses. The thin polymer foil is realized by spin coating polyimide on the photodiode array followed by imidization. Via holes are etched into the polyimide film for contacting the pads of the photodiodes. First spin coating tests were performed using silicon wafers without photodiodes but with metal pads and with etched trenches to simulate the gap between individual photodiodes. Although the thickness of the spin-coated polyimide layer was very inhomogeneous, we succeeded in realizing vias for connecting contact pads by thin film gold tracks crossing deep trenches. The realized via holes had inclined sidewalls as desired. Electrical measurements showed sufficient electrical contact between two connected pads.
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- 2020
234. Intraoperative electrostimulation for awake brain mapping: how many positive interference responses are required for reliability?
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Jean-Baptiste Durand, Imène Djidjeli, Franck-Emmanuel Roux, Carlo Giussani, Romain Quehan, Emilie Réhault, Roux, F, Djidjeli, I, Quéhan, R, Réhault, E, Giussani, C, Durand, J, Centre de recherche cerveau et cognition (CERCO), Institut des sciences du cerveau de Toulouse. (ISCT), Université Toulouse - Jean Jaurès (UT2J)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-CHU Toulouse [Toulouse]-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-Université Toulouse - Jean Jaurès (UT2J)-Université Toulouse III - Paul Sabatier (UT3), and Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-CHU Toulouse [Toulouse]-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS)
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glioma surgery ,education ,surgical technique ,Brain mapping ,Resection ,[SCCO]Cognitive science ,03 medical and health sciences ,intraoperative stimulation ,0302 clinical medicine ,Medicine ,health care economics and organizations ,Normal range ,Reliability (statistics) ,Reproducibility ,reliability ,MNI = Montreal Neurological Institute ,Adult patients ,business.industry ,Current threshold ,electrostimulation ,General Medicine ,Baseline testing ,awake surgery ,030220 oncology & carcinogenesis ,Anesthesia ,brain mapping ,business ,030217 neurology & neurosurgery - Abstract
OBJECTIVEThe purpose of this study was to characterize the reproducibility of language trials within and between brain mapping sessions.METHODSBrain mapping and baseline testing data from 200 adult patients who underwent resection of left-hemisphere tumors were evaluated. Data from 11 additional patients who underwent a second resection for recurrence were analyzed separately to investigate reproducibility over time. In all cases, a specific protocol of electrostimulation brain mapping with a controlled naming task was used to detect language areas, and the results were statistically compared with preoperative and intraoperative baseline naming error rates. All patients had normal preoperative error rates, controlled for educational level and age (mean 8.92%, range 0%–16.25%). Intraoperative baseline error rates within the normal range were highly correlated with preoperative ones (r = 0.74, p < 10−10), although intraoperative rates were usually higher (mean 13.30%, range 0%–26.67%). Initially, 3 electrostimulation trials were performed in each cortical area. If 2 of 3 trials showed language interference, 1 or 2 additional trials were performed (depending on results).RESULTSIn the main group of 200 patients, there were 82 single interferences (i.e., positive results in 1 of 3 trials), 227 double interferences (2/3), and 312 full interferences (3/3). Binomial statistics revealed that full interferences were statistically significant (vs intraoperative baseline) in 92.7% of patients, while double interferences were significant only in 38.5% of patients, those with the lowest error rates. On further testing, one-third of the 2/3 trials became 2/4 trials, which was significant in only one-quarter of patients. Double interference could be considered significant for most patients (> 90%) when confirmed by 2 subsequent positive trials (4/5). In the 11 patients who were operated on twice, only 26% of areas that tested positive in the initial operation tested positive in the second and showed the same type of interference and the same current threshold (i.e., met all 3 criteria).CONCLUSIONSElectrostimulation trials in awake brain mapping produced graded patterns of positive reproducibility levels, and their significance varied with the baseline error rates. The results suggest that caution is warranted when 2 of 3 trials are positive, although the need for additional trials depends on the individual patients’ baseline error rates. Reproducibility issues should be considered in the interpretation of data from awake brain mapping.
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- 2020
235. Konservative Therapie der Inkontinenz / Conservative Management of Faecal Incontinence
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Geile, D., Osterholzer, G., Zinner, I., Müller, J., Rosenberg, R., and Hartel, W., editor
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- 2001
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236. Changes in Muscle Thickness after 8 Weeks of Strength Training, Electromyostimulation, and Both Combined in Healthy Young Adults
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Filipe Matos, João Amaral, Eduardo Martinez, Rui Canário-Lemos, Tiago Moreira, Jurandir Cavalcante, Rafael Peixoto, Bruno Nobre Pinheiro, Lino Scipião Junior, Paulo Uchoa, Nuno Garrido, Victor Machado Reis, Gabriéla Matos Monteiro, and José Vilaça-Alves
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Young Adult ,strength training ,electrostimulation ,muscle thickness ,ultrasonography ,hypertrophy ,Health, Toxicology and Mutagenesis ,Public Health, Environmental and Occupational Health ,Humans ,Electric Stimulation Therapy ,Resistance Training ,Muscle Strength ,Muscle, Skeletal ,Exercise ,Exercise Therapy - Abstract
The aim of this study was to verify and compare the effects of electromyostimulation training (EMS), strength training (ST), and both combined (STEMS), through the analysis of the elbow flexors muscle thickness. Forty subjects (24.45 ± 3.53 years), were randomly divided equally in 4 groups: 3 experimental groups and 1 control group. Each experimental group was submitted to one of three interventions, either an ST protocol, an EMS protocol, or a STEMS protocol. The control group (CG) did not perform any type of physical activity. Ultrasonography (US) was used to measure muscle thickness (MT) at 50 and 60% of the distance between the acromion and the olecranon. The results showed a significant difference in the elbow flexors muscle thickness after 8 weeks, both in the STG, EMSG, and STEMSG, but not in the CG. However, no significant differences were observed between the intervention protocols. It seems that an increase in MT can be obtained using either with ST, EMS, or both combined, however, the results doesn’t support the overlap of one method in relation to the others. EMS can be another interesting tool to induce muscle hypertrophy, but not necessarily better.
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- 2022
237. Development of a boarding system for electrostimulation-assisted cycling - FES-cycling
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Portilla Hernández, Pablo Mauricio, Universidade Estadual Paulista (Unesp), and Sanches, Marcelo Augusto Assunção [UNESP]
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Eletroestimulação ,Electrostimulation ,Fes-cycling ,IMU - Abstract
Submitted by Joao Josue Barbosa (joao.barbosa@unesp.br) on 2022-05-16T19:35:55Z No. of bitstreams: 1 portilla_hernandez_pm_me_ilha.pdf: 8428753 bytes, checksum: a511c9971b849bc9cd3216d6b00d2f20 (MD5) Approved for entry into archive by Joao Josue Barbosa (joao.barbosa@unesp.br) on 2022-05-16T19:48:47Z (GMT) No. of bitstreams: 1 portilla_hernandez_pm_me_ilha.pdf: 8428753 bytes, checksum: a511c9971b849bc9cd3216d6b00d2f20 (MD5) Made available in DSpace on 2022-05-16T19:48:47Z (GMT). No. of bitstreams: 1 portilla_hernandez_pm_me_ilha.pdf: 8428753 bytes, checksum: a511c9971b849bc9cd3216d6b00d2f20 (MD5) Previous issue date: 2022-01-27 Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) Para pessoas com paralisia dos membros inferiores por lesão medular espinhal (LME), a estimulação elétrica funcional (FES, acrônimo de Functional Electrical Stimulation) é apresentada como uma técnica de reabilitação que aplica correntes elétricas para ativar os nervos que inervam os membros afetados pelo paralisia. O ciclismo assistido por FES demonstrou fornecer diferentes benefícios clínicos. Esta metodologia baseia-se na estimulação sequencial dos músculos dos membros inferiores para produzir movimentos cíclicos das pernas. Na maioria dos estúdios e dispositivos comerciais apresentam limitações quanto à eficiência, desempenho, implementação e outros aspectos. Com base nessas premissas, este trabalho apresenta um sistema de eletroestimulação embarcado simplificado e inovador para uso em ciclismo. A sequência de estimulação é baseada em um sensor inercial (IMU, acrônimo de Inertial Measure Unit) localizado no pedivela de um ergômetro vertical. Um algoritmo é responsável pelo processamento da informação do sensor para determinar a sequência e posteriormente essa informação é enviada para um eletroestimulador que é responsável pela eletroestimulação muscular. Os parâmetros elétricos são previamente definidos com base nas condições físicas do usuário, porém o ergômetro vertical possui um acelerador que permite ao usuário modificar os parâmetros elétricos com base em suas condições. Esta metodologia fornece uma forma de implementação mais simples e versátil que pode ser adaptada a diferentes tipos de ergômetros verticais ou morfologias de usuários. For people with Spinal Cord Injury (SCI) lower-limb paralysis, Functional Electrical Stimulation (FES) is presented as a rehabilitation technique that applies electrical currents to activate the nerves that innervate the limbs affected by the paralysis. FES-assisted cycling has been shown to provide multiple clinical benefits. This methodology is based on sequential stimulation of the muscles of the lower limbs to produce cyclical movements of the legs. Most studios and commercial devices have limitations in efficiency, performance, implementation, and other aspects. Based on these premises, this work presents a simplified and innovative embedded electrostimulation system for use in cycling. The stimulation sequence is based on an inertial sensor (IMU) located on the crank of a vertical ergometer. An algorithm is responsible for processing the sensor information to determine the sequence and later this information is sent to an electro stimulator that is responsible for muscle electrostimulation. The electrical parameters are pre-set based on the user’s physical conditions, however, the vertical ergometer has an accelerator that allows the user to modify the electrical parameters based on any change to their conditions. This methodology provides a simpler and more versatile form of implementation that can be adapted to different types of vertical ergometers or user morphologies. CAPES: 001
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- 2022
238. Optimization of Seating Position and Stimulation Pattern in Functional Electrical Stimulation Cycling: Simulation Study
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Ehsan Jafari, Efe A. Aksoez, Petar Kajganic, Amine Metani, Lana Popovic-Maneski, and Vance Bergeron
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Muscles ,electrostimulation ,Electric Stimulation ,Bicycling ,seating position ,muscle force ,stimulation pattern ,velocity factor ,Muscle Fatigue ,functional electric stimulation ,computer simulation ,Humans ,Computer Simulation ,FES-cycling ,muscle fatigue ,muscles ,humans ,optimization ,electric stimulation - Abstract
Two significant challenges facing functional electrical stimulation (FES) cycling are the low power output and early onset of muscle fatigue, mainly due to the non-physiological and superficial recruitment of motor units and weakness of the antagonistic muscles. Thus optimization of the cycling biomechanical properties and stimulation pattern to achieve maximum output power with minimum applied electrical stimulus is of great importance. To find the optimal seating position and stimulation pattern, the previous works either ignored the muscle's force-velocity and force-length properties or employed complicated muscle models which was a massive barrier to clinical experiments. In this work, an easy-to-use and precise muscle model in conjunction with Jacobian-based torque transfer functions were adopted to determine the optimal seating position, trunk angle, crank arm length, and stimulation intervals. Furthermore, the impact of muscle force-velocity factor in finding the optimal seating position and stimulation intervals was investigated. The simulation models showed the trivial effect of the force-velocity factor on the resulting optimal seating position of six healthy simulated subjects. This method can enhance the FES-cycling performance and shorten the time-consuming process of muscle model identification for optimization purposes. © 2022 IEEE. This is the peer-reviewed version of the paper: Jafari, Ehsan, Aksoez, Efe A., Kajganić, Petar, Metani, Amine, Popović-Maneski, Lana, Bergeron, Vance, "Optimization of Seating Position and Stimulation Pattern in Functional Electrical Stimulation Cycling: Simulation Study", 2022 July (2022):725-731, [https://doi.org/10.1109/EMBC48229.2022.9871339]
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- 2022
239. Nanostructured Electroactive Materials with Large Charge Capacity: Direct Field Electrostimulation Through Connected and Non-connected Electrodes
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Ann M. Rajnicek, Cristina Suñol, Nieves Casañ-Pastor, Ministerio de Economía y Competitividad (España), Ministerio de Ciencia, Innovación y Universidades (España), Agencia Estatal de Investigación (España), Fundació La Marató de TV3, and European Commission
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Iridium oxide ,Electrostimulation ,PPy ,Charge capacity ,Electrode ,Carbon-based materials ,Electroactive materials ,Nanostructured hybrid materials ,PEDOT - Abstract
Electric field stimulation protocols depend on the electrode material used, but the material characteristics are often not considered or sufficiently described for optimization. Furthermore, charge capacity is considered only in capacitor-like systems, without taking into account that intercalation materials offer an internal faradaic charge delivery advantage, with substantially less risk for biological systems. This chapter describes new materials with high charge capacities, appropriate electric field protocols for using them, and examples of neural cultures that can be used to elucidate the biological effects of fields. Mammalian neurons, neuron–astrocyte co-cultures, and amphibian spinal neurons are used in vitro, often as scratch wound models, to assess their potential for stimulating tissue repair. Importantly, remote control of dipoles induced in conducting implanted materials is shown to be a new promising approach and a breakthrough., The present work has been financed by the Ministry of Science of Spain (MAT2015-65192-R and RTI2018-097753-B-I00), Fundació Marató TV3 (110130/31), Severo Ochoa Program (SEV-2015-0496 and CEX2019-000917-S) and EU grant FP6-2004-NEST-C1 028473.
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- 2022
240. 'CAN ELECTRICITY HEAL'?: HISTORICAL OVERVIEW OF THE BEGINNINGS OF ELECTROTHERAPY IN CROATIA
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Fatović-Ferenčić, Stella and Brkić Midžić, Silvija
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elektricitet ,elektroterapija ,elektrostimulatori ,povijest medicine ,Hrvatska ,electricity ,electrotherapy ,electrostimulation ,history of medicine ,Croatia - Abstract
U razdoblju od 18. do 20. stoljeća elektroterapija se u različitim zemljama primjenjuje s različitom učestalošću i rezultatima. Primjena elektroterapije pokazatelj je usvajanja i prenošenja znanja iz temeljnih znanosti (fizike) u medicinu te prijenosa postupaka u liječenju iz stranih zemalja i njihova usvajanja u našoj sredini. Najranije informacije o elektroterapiji u Hrvatskoj odnose se na oglašavanje uređaja za elektroterapiju u medijskom prostoru, slijede ih poduke o elektricitetu i mogućnostima njegove primjene iz pera fizičara u publikacijama popularnog tipa, potom objave iskustava naših liječnika na stranicama strukovnih glasila. U ovom radu identificirani su sadržaji naših liječnika o elektroterapiji od 1897. i tijekom prve polovine 20. stoljeća. Od samih početaka ovu metodu prate rasprave o njezinoj učinkovitosti i opravdanju, koje traju do danas. Sačuvani elektroterapijski uređaji koji su prikazani u ovom radu važna su dopuna medicinskoj historiografiji i dragocjen segment medicinske materijalne kulture čiji su tragovi sačuvani i na području Hrvatske., In the period from the eighteenth to the twentieth century, electrotherapy was applied worldwide with various incidence and different results. The application of electrotherapy is an indicator of the acquisition and transfer of knowledge from the basic sciences (physics) to medicine and the transfer and adoption of treatment procedures from foreign environments to our own. In Croatia, the earliest information on electrotherapy came from advertising electrotherapy devices in the daily newspapers. It was followed by lessons on electricity, as well as the possibilities of its application mostly written by physicists in their popular publications. Croatian doctors’ publications about their experiences were first uncovered in 1897 on the pages of the professional journal Liječnički Vjesnik. This paper elaborates on the publications written during the first half of the 20th century. From the very beginning, this method has been accompanied by debates about its effectiveness and justification for its use, which have continued until today. The preserved electrotherapeutic devices presented in this paper are an important addition to medical historiography and a valuable segment of material medical culture, traces of which have been preserved in Croatia.
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- 2022
241. Diseño de un dispositivo no invasivo para la reducción de temblores periféricos
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Buitrago Arias, Sergio Andrés and Espinosa Medina, Ricardo Alonso
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Electromiografía superficial ,Electrostimulation ,Reciprocal inhibition ,Transformada de Fourier ,Fourier transform ,Temblor muscular ,Surface electromyography ,Inhibición recíproca ,Electroestimulación ,Muscle tremor - Abstract
El temblor de Parkinson y el temblor esencial son afectaciones sindrómicas provenientes de las enfermedades neurológicas asociadas al temblor más común en Colombia, dificultan el control de los miembros del paciente, disminuyen progresivamente la calidad de vida de la persona, implican el gradual avance de la enfermedad, a su vez comprenden complicaciones psicológicas que a largo plazo reducen la esperanza de vida del peciente y a corto pazo la autonomía de este. Los tratamientos para el temblor en Colombia no esencialmente son los más adecuados, asequibles y eficaces, el paciente puede ver afectada su integridad o no recibir alivio alguno por parte del tratamiento, la propuesta de diseño de un dispositivo no invasivo para mitigar los temblores envuelve las consideraciones de tratamiento, asequibilidad, eficacia, bienestar, movilidad y cuidado, que beneficie al paciente por medio de tres fases, adquisición, caracterización espectral y entrega del estímulo. Se apreciaron las etapas electrónicas y consideraciones del síntoma para la reducción del temblor muscular empleando un dispositivo no invasivo de tres fases. Parkinson's tremor and essential tremor are syndromic affectations of the most common neurological diseases associated with tremor in Colombia, they hinder the control of the patient's limbs, progressively decrease the quality of life of the person, involve the gradual progression of the disease, in turn comprise psychological complications that in the long term reduce the patient's life expectancy and in the short term the patient's autonomy. Treatments for tremor in Colombia are not essentially the most adequate, affordable and effective, the patient's integrity may be affected or receive no relief from the treatment, the proposed design of a non-invasive device to mitigate tremors involves the considerations of treatment, affordability, effectiveness, well-being, mobility and care, which benefits the patient through three phases, acquisition, spectral characterization of the acquisition and delivery of the stimulus. Electronic stages and symptom considerations for muscle tremor reduction using a three-phase noninvasive device were appreciated. Resumen Introducción 1. Planteamiento del Problema 1.1. Descripción del problema 1.2 Formulación del problema 2. Justificación 3 Objetivos 3.1 Objetivo general 3.2 Objetivos específicos 4 Estado del arte 5 Marco Teórico 5.1 Contracción muscular 5.1.1 EMG de la contracción muscular 5.2 El temblor 5.2.1 Frecuencia propia de los temblores 5.3 Estimulación nerviosa periférica 5.4 Inhibición reciproca 5.5 Transformada de Fourier 6 Metodología 6.1 Primera fase: EMGs 6.1.1 Amplificación de la señal 6.1.2 Filtrado de la señal 6.1.3 Ajuste de la señal 6.1.4 Amplificador de aislamiento 6.2 Segunda fase: Procesamiento de la señal 6.3 Tercera fase: Diseño del electroestimulador 6.3.1 Control frecuencia y amplitud usando el integrado 555 6.3.2 Control amplitud 7 Resultados 8 Conclusiones Referencias Pregrado Tecnólogo en Mantenimiento de Equipos Biomédicos Tecnología en Mantenimiento de Equipos Biomédicos
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- 2022
242. Comparing electromagnetic stimulation with electrostimulation plus biofeedback in treating male refractory chronic pelvic pain syndrome.
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Yang, Min-Hsin, Huang, Yu-Hui, Lai, Yu-Fen, Zeng, Sheng-Wei, and Chen, Sung-Lang
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Objective The aim of this study was to compare the effectiveness of electromagnetic stimulation (EMS) versus electrostimulation plus biofeedback (ESB) for the treatment of refractory chronic pelvic pain syndrome (CPPS) in men. Materials and Methods A total of 23 male refractory CPPS patients were included in the study. EMS was applied for 30 minutes, three times weekly, for 6 weeks, for pelvic floor rehabilitation. We retrospectively compared the outcomes with 22 male refractory CPPS patients treated with ESB twice a week for 2 weeks, and later once a week for 4 weeks. Each ESB session lasted 45 minutes, including biofeedback (15 minutes) followed by electrostimulation (30 minutes). The outcome measures included the National Institutes of Health Chronic Prostatitis Symptoms Index (NIH-CPSI), International Prostate Symptom Score (IPSS), and a visual analogue score for pain from baseline to 12 weeks after completion of treatment. Results Significantly reduced pain, improved quality of life (QoL), and lowered total score of the NIH-CPSI were observed in both groups (all p < 0.05). The ESB group also demonstrated improvement in the urinary subscore of the NIH-CPSI. No significant differences were found between the groups in the urinary score measures of the NIH-CPSI. The mean pain score ( p = 0.035), QoL ( p = 0.012), and total score ( p = 0.009) improved significantly in the ESB group compared with EMS group. Total IPSS and visual analogue score improved significantly after treatment in both groups. However, no significant differences were noted between the groups in the total and subdomain sums of the IPSS. Conclusion Both EMS and ESB physical therapy of the pelvic floor muscle effectively reduce pain, increase the QoL, and improve urinary tract symptoms in male CPPS patients who are refractory to medical treatments. The combination therapy of ES plus biofeedback demonstrates additional benefits in pain and QoL when compared with EMS alone. [ABSTRACT FROM AUTHOR]
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- 2017
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243. Whole-body electromyostimulation and protein supplementation favorably affect sarcopenic obesity in community-dwelling older men at risk: the randomized controlled FranSO study.
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Kemmler, Wolfgang, Weissenfels, Anja, Teschler, Marc, Willert, Sebastian, Bebenek, Michael, Shojaa, Mahdieh, Kohl, Matthias, Freiberger, Ellen, Sieber, Cornel, and von Stengel, Simon
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SARCOPENIA ,DIETARY proteins ,RANDOMIZED controlled trials - Abstract
Background: Sarcopenic obesity (SO) is a geriatric syndrome characterized by the disproportion between the amount of lean mass and fat mass. Exercise decreases fat and maintains muscle mass; however, older people fail to exercise at doses sufficient to affect musculoskeletal and cardiometabolic risk factors. The aim of this study was to evaluate the effect of whole-body electromyostimulation (WB-EMS), a time-efficient, joint-friendly and highly individualized exercise technology, on sarcopenia and SO in older men. Materials and methods: A total of 100 community-dwelling northern Bavarian men aged ≥70 years with sarcopenia and obesity were randomly (1-1-1) assigned to either 16 weeks of 1) WB-EMS and protein supplementation (WB-EMS&P), 2) isolated protein supplementation or 3) nonintervention control. WB-EMS consisted of 1.5×20 min (85 Hz, 350 μs, 4 s of strain to 4 s of rest) applied with moderate-to-high intensity while moving. We further generated a daily protein intake of 1.7-1.8 g/kg/body mass per day. The primary study end point was Sarcopenia Z-Score, and the secondary study end points were body fat rate (%), skeletal muscle mass index (SMI) and handgrip strength. Results: Intention-to-treat analysis determined a significantly favorable effect of WB-EMS&P (P<0.001) and protein (P=0.007) vs control. Both groups significantly (P<0.001) lost body fat (WB-EMS&P: 2.1%; protein: 1.1%) and differed significantly (P#0.004) from control (0.3%). Differences between WB-EMS&P and protein were significant for the Sarcopenia Z-Score (P=0.39) and borderline nonsignificant (P=0.051) for body fat. SMI increased significantly in both groups (P<0.001 and P=0.043) and decreased significantly in the control group (CG; P=0.033); differences between the verum groups and control were significant (P#0.009). Handgrip strength increased in the WB-EMS group (1.90 kg; P<0.001; P=0.050 vs control) only. No adverse effects of WB-EMS or protein supplementation were recorded. Conclusion: WB-EMS&P is a safe and efficient method for tackling sarcopenia and SO in older men. However, the suboptimum effect on functional parameters should be addressed by increased voluntary activation during WB-EMS application. [ABSTRACT FROM AUTHOR]
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- 2017
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244. Enzyme catalyzed electrostimulation of human embryonic stem cell-derived cardiomyocytes influence contractility and synchronization.
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Park, Soon-Jung, Kim, Ki-Hoon, Jeon, Won-Yong, Seo, Joseph, Han, Jung-Min, Kim, Jong-Soo, Chung, Hyung-Min, Lee, Jae-Ho, Moon, Sung-Hwan, and Kim, Hyug-Han
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ELECTRIC stimulation , *HUMAN embryonic stem cells , *HEART cells , *CONTRACTILITY (Biology) , *GAP junctions (Cell biology) - Abstract
Electrical stimulation is a major physiological mediator that has long been implicated by electro-physiologists to have therapeutic benefits. Here, we investigated electrostimulation as a promising mean for micro-scale electrical stimulation to enhance human embryonic stem cell-derived cardiomyocytes. This study demonstrated an easy-to-use bioelectrical stimulation system that could operate without a power unit. It utilizes enzymes to generate electron rich or poor conditions by exploiting the oxidation-reduction capability of glucose and oxygen. Glucose oxidase (−1.03 to −1.31 μA/cm 2 ) stimulated cardiomyocytes showed increased calcium levels as a result of increased gap junctions which lead to faster synchronization and contractility within 12 days. The simplicity and biocompatibility of this approach could hasten drug screening, cell therapy, and electrophysiological research by making studies much more practical through the enhancement of functional human embryonic stem cell-derived cardiomyocytes. [ABSTRACT FROM AUTHOR]
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- 2017
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245. Zastosowanie wybranych bodźców fizykalnych podczas profesjonalnych zabiegów kosmetologicznych. Część III. Prąd niskiej częstotliwości i fale elektromagnetyczne o częstotliwości radiowej jako alternatywa inwazyjnych zabiegów z zakresu medycyny estetycznej.
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Wesołowska, Jolanta, Iwan-Ziętek, Iza, Mosiejczuk, Hanna, Kemicer-Chmielewska, Ewa, and Marchlewicz, Mariola
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The use of different physical stimuli improves the effectiveness of cosmetic treatments. The development of an optimal methodology for cosmetic treatments using electrical stimulation and methods of treatments using radio-frequency electromagnetic waves, and the use of active substances that stimulate regeneration of collagen, elastin and hyaluronic acid can improve the skin's structure. [ABSTRACT FROM AUTHOR]
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- 2017
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246. Rapid Alleviation of Parkinson's Disease Symptoms via Electrostimulation of Intrinsic Auricular Muscle Zones.
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Cakmak, Yusuf O., Apaydin, Hülya, Kiziltan, Güneş, Gündüz, Ayşegül, Ozsoy, Burak, Olcer, Selim, Urey, Hakan, Cakmak, Ozgur O., Ozdemir, Yasemin G., and Ertan, Sibel
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PARKINSON'S disease treatment ,BRAIN disease treatment ,SYMPTOMS ,BRAIN stimulation ,MESENCEPHALIC tegmentum - Abstract
Background: Deep brain stimulation of the subthalamic nucleus (STN-DBS) and the pedunculopontine nucleus (PPN) significantly improve cardinal motor symptoms and postural instability and gait difficulty, respectively, in Parkinson's disease (PD). Objective and Hypothesis: Intrinsic auricular muscle zones (IAMZs) allow the potential to simultaneously stimulate the C2 spinal nerve, the trigeminal nerve, the facial nerve, and sympathetic and parasympathetic nerves in addition to providing muscle feedback and control areas including the STN, the PPN and mesencephalic locomotor regions. Our aim was to observe the clinical responses to IAMZ stimulation in PD patients. Method: Unilateral stimulation of an IAMZ, which includes muscle fibers for proprioception, the facial nerve, and C2, trigeminal and autonomic nerve fibers, at 130 Hz was performed in a placebo- and sham-controlled, double-blinded, within design, two-armed study of 24 PD patients. Results: The results of the first arm (10 patients) of the present study demonstrated a substantial improvement in Unified Parkinson's Disease Ratings Scale (UPDRS) motor scores due to 10 min of IAMZ electrostimulation (p = 0.0003, power: 0.99) compared to the placebo control (p = 0.130). A moderate to large clinical difference in the improvement in UPDRS motor scores was observed in the IAMZ electrostimulation group. The results of the second arm (14 patients) demonstrated significant improvements with dry needling (p = 0.011) and electrostimulation of the IAMZ (p < 0.001) but not with sham electrostimulation (p = 0.748). In addition, there was a significantly greater improvement in UPDRS motor scores in the IAMZ electrostimulation group compared to the IAMZ dry needling group (p < 0.001) and the sham electrostimulation (p < 0.001) groups. The improvement in UPDRS motor scores of the IAMZ electrostimulation group (1UPDRS = 5.29) reached moderate to high clinical significance, which was not the case for the dry needling group (1UPDRS = 1.54). In addition, both arms of the study demonstrated bilateral improvements in motor symptoms in response to unilateral IAMZ electrostimulation. Conclusion: The present study is the first demonstration of a potential role of IAMZ electrical stimulation in improving the clinical motor symptoms of PD patients in the short term. [ABSTRACT FROM AUTHOR]
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- 2017
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247. High variability of facial muscle innervation by facial nerve branches: A prospective electrostimulation study.
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Raslan, Ashraf, Volk, Gerd Fabian, Möller, Martin, Stark, Vincent, Eckhardt, Nikolas, and Guntinas‐Lichius, Orlando
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Objectives/hypothesis: To examine by intraoperative electric stimulation which peripheral facial nerve (FN) branches are functionally connected to which facial muscle functions.Study Design: Single-center prospective clinical study.Methods: Seven patients whose peripheral FN branching was exposed during parotidectomy under FN monitoring received a systematic electrostimulation of each branch starting with 0.1 mA and stepwise increase to 2 mA with a frequency of 3 Hz. The electrostimulation and the facial and neck movements were video recorded simultaneously and evaluated independently by two investigators.Results: A uniform functional allocation of specific peripheral FN branches to a specific mimic movement was not possible. Stimulation of the whole spectrum of branches of the temporofacial division could lead to eye closure (orbicularis oculi muscle function). Stimulation of the spectrum of nerve branches of the cervicofacial division could lead to reactions in the midface (nasal and zygomatic muscles) as well as around the mouth (orbicularis oris and depressor anguli oris muscle function). Frontal and eye region were exclusively supplied by the temporofacial division. The region of the mouth and the neck was exclusively supplied by the cervicofacial division. Nose and zygomatic region were mainly supplied by the temporofacial division, but some patients had also nerve branches of the cervicofacial division functionally supplying the nasal and zygomatic region.Conclusions: FN branches distal to temporofacial and cervicofacial division are not necessarily covered by common facial nerve monitoring. Future bionic devices will need a patient-specific evaluation to stimulate the correct peripheral nerve branches to trigger distinct muscle functions.Level Of Evidence: 4 Laryngoscope, 127:1288-1295, 2017. [ABSTRACT FROM AUTHOR]- Published
- 2017
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248. Carpal scaphoid non-union treatment: a retrospective trial comparing simple retrograde percutaneous screw fixation versus percutaneous screw fixation plus pulsed electromagnetic fields (Physiostim).
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Pereira, Alexis, Hidalgo Díaz, Juan, Saur, Maurise, Salazar Botero, Santiago, Facca, Sybille, and Liverneaux, Philippe
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ALTERNATIVE medicine , *BONE screws , *ELECTROMAGNETIC fields , *PATIENT aftercare , *WRIST injuries , *RETROSPECTIVE studies - Abstract
Background: The purpose of this retrospective comparative study was to assess whether a complementary treatment by pulsed electromagnetic field could increase the bone-healing rate of scaphoid non-union without SNAC (scaphoid non-union advanced collapse) treated by retrograde percutaneous screw fixation. Case description: Eighteen patients with scaphoid non-union were included in this retrospective study. The group 1 was made of nine cases (seven stage IIA and two stage IIB) of scaphoid non-union treated by retrograde percutaneous screw fixation and pulsed electromagnetic fields (Physiostim). The group 2 was made of nine cases (six stage IIA and three stage IIB) treated by simple retrograde percutaneous screw fixation. Results: With a 10-month follow-up in group 1 and a 9.5-month follow-up in group 2, there were three cases of non-union in group 1 and two cases in group 2. Regarding the type of non-union, there was one case among the stage IIB and four cases among the stage IIA. Clinical relevance: The results of the study did not show any interest in the use of pulsed electromagnetic field for the treatment of carpal scaphoid non-union. They should be dropped. Level of evidence: III. [ABSTRACT FROM AUTHOR]
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- 2017
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249. Augmentation of arterial blood velocity with electrostimulation in patients with critical limb ischemia unsuitable for revascularization.
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Yilmaz, Seyhan, Mermi, Esra U., Zobaci, Ethem, Aksoy, Eray, and Yastı, Çınar
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Aim This pilot study aimed to reveal whether combination of electrostimulation with iloprost treatment achieves better results compared to iloprost alone in patients with critical limb ischemia. Material and methods Patients were randomized into Group 1 ( n = 11, mean age: 65.3 ± 4.2 years, received iloprost infusion protocol alone) or Group 2 ( n = 11, mean age: 62.9 ± 6.7, received iloprost infusion plus standardized protocol of peroneal nerve electrostimulation). Electrostimulation was delivered with 1 Hz frequency, 27 mA current, and 200 ms pulse width. Peak blood flow velocities in the anterior and posterior tibialis arteries were measured with duplex ultrasound. Results There was a slight insignificant increase in blood velocity in anterior tibialis artery in Group 1 (from 17.6 ± 13.0 to 18.6 ± 13.1, p = 0.57), whereas the increase in Group 2 was marked (from 23.8 ± 18.3 to 32.2 ± 19.7, p = 0.01). Blood velocity in posterior tibialis artery also increased in both groups, but it was not of statistical significance. No significant difference was found between two groups in regard to final pulse oximetry oxygen saturation levels. Conclusion Electrostimulation of the peroneal nerve caused a substantial increase in anterior tibialis artery blood velocity when used as an adjunct to medical therapy in patients with critical limb ischemia. [ABSTRACT FROM AUTHOR]
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- 2017
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250. Decreasing the Uterine Blood Flow with Electroacupuncture: Bidermatomal and Monodermatomal Applications.
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Cakmak, Yusuf Ozgur, akpinar, Ihsan Nuri, and Yoldemir, Tevfik
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BLOOD flow , *ELECTROACUPUNCTURE , *TREATMENT effectiveness , *UTERINE artery , *BLOOD circulation , *ARTERIES , *CLINICAL trials , *UTERUS , *COLOR Doppler ultrasonography , *HUMAN research subjects , *PHYSIOLOGY ,UTERINE fibroid treatment - Abstract
Background: Previously we demonstrated a uterine fibroma case in which the decrease in the uterine artery blood flow was obtained with bidermatomal electroacupuncture (EA). A prospective study was conducted to validate the efficacy of bidermatomal and monodermatomal EA applications.Methods: Ten healthy women participated 3 times for 3 steps of the study. Each woman enrolled into a bidermatomal sham control group application, a bidermatomal 80 Hz EA and as a last step, a monodermatomal EA with 80 Hz. Color Doppler ultrasonographic recordings were made to detect baseline blood flow parameters by a pulsatility index (PI), volume flow, area and diameter of each uterine artery and after stimulations.Results: Doppler ultrasonographic recordings demonstrated statistically significant decreases of the blood flow both with bidermatomal (p = 0.03 for the left side PI and p = 0.04 for the right side PI) and monodermatomal EA (p = 0.006 for the left PI and p = 0.002 for the right side PI). The sham control group did not show a significant change in blood flow parameters.Conclusions: The present study validates the efficacy of the bidermatomal but also the monodermatomal EA with 80 Hz on decreasing the blood flow to the uterus. [ABSTRACT FROM AUTHOR]- Published
- 2017
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