6 results on '"Ilya Rukavishnikov"'
Search Results
2. Impact of different ground-based microgravity models on human sensorimotor system
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Alina Saveko, Maria Bekreneva, Ivan Ponomarev, Inna Zelenskaya, Alexandra Riabova, Tatiana Shigueva, Vladimir Kitov, Nelly Abu Sheli, Inna Nosikova, Ilya Rukavishnikov, Dimitry Sayenko, and Elena Tomilovskaya
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groundbased observations ,dry immersion (DI) ,bed rest ,parabolic flight ,space flight ,immobilization ,Physiology ,QP1-981 - Abstract
This review includes current and updated information about various ground-based microgravity models and their impact on the human sensorimotor system. All known models of microgravity are imperfect in a simulation of the physiological effects of microgravity but have their advantages and disadvantages. This review points out that understanding the role of gravity in motion control requires consideration of data from different environments and in various contexts. The compiled information can be helpful to researchers to effectively plan experiments using ground-based models of the effects of space flight, depending on the problem posed.
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- 2023
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3. Application of Space Technologies Aimed at Proprioceptive Correction in Terrestrial Medicine in Russia
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Eugenia Motanova, Maria Bekreneva, Ilya Rukavishnikov, Tatiana A. Shigueva, Alina A. Saveko, and Elena S. Tomilovskaya
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Proprioceptive correction ,support afferentation ,neurorehabilitation ,Korvit ,axial loading suit ,Physiology ,QP1-981 - Abstract
Space technologies greatly contributed not only to space medicine but also to terrestrial medicine, which actively involves these technologies in everyday practice. Based on the existing countermeasures, and due to similarities of sensorimotor alterations provoked by the weightlessness with various neurological disorders, a lot of work has been dedicated to adaptation and introduction of these countermeasures for rehabilitation of patients. Axial loading suit and mechanical stimulation of the soles’ support zones are used in mitigation of stroke and traumatic brain injury consequences. They are also applied for rehabilitation of children with cerebral palsy. Complex application of these proprioceptive correction methods in neurorehabilitation programs makes it possible to effectively treat neurological patients with severe motor disturbances and significant brain damage.
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- 2022
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4. The First Female Dry Immersion (NAIAD-2020): Design and Specifics of a 3-Day Study
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Elena Tomilovskaya, Liubov Amirova, Inna Nosikova, Ilya Rukavishnikov, Roman Chernogorov, Svetlana Lebedeva, Alina Saveko, Ivan Ermakov, Ivan Ponomarev, Inna Zelenskaya, Tatiana Shigueva, Nikita Shishkin, Vladimir Kitov, Alexandra Riabova, Vitaly Brykov, Nelly Abu Sheli, Galina Vassilieva, and Oleg Orlov
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Dry immersion ,women ,ground-based model of microgravity ,supportlessness ,NAIAD-2020 ,Physiology ,QP1-981 - Abstract
This article describes procedures and some results of the first study of females undergoing 3-day Dry Immersion. The experiment “NAIAD-2020” was carried out at the Institute of Biomedical Problems (Moscow, Russia) with the participation of six healthy women volunteers (age 30.17 ± 5.5 years, height 1.66 ± 0.1 m, weight 62.05 ± 8.4 kg, BMI 22.39 ± 2.2 kg/m2) with a natural menstrual cycle. During the study, a standard protocol was used, the same as for men, with a minimum period of time spent outside the immersion bath. Before, during and after Immersion, 22 experiments were carried out aimed at studying the neurophysiological, functional, metabolic and psychophysiological functions of the body, the results of which will be presented in future publications. The total time outside the bath for women did not exceed that for men. Systolic and diastolic pressure did not significantly change during the immersion. In the first 24 h after the end of the immersion, heart rate was significantly higher than the background values [F(4,20) = 14.67; P < 0.0001]. Changes in body temperature and water balance were consistent with the patterns found in men. No significant changes in height and weight were found during immersion. All women reported general discomfort and pain in the abdomen and back. The results of this study did not find significant risks to women’s health and showed the feasibility of using this model of the effects of space flight in women of reproductive age.
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- 2021
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5. Alterations of Functional Brain Connectivity After Long-Duration Spaceflight as Revealed by fMRI
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Ekaterina Pechenkova, Inna Nosikova, Alena Rumshiskaya, Liudmila Litvinova, Ilya Rukavishnikov, Elena Mershina, Valentin Sinitsyn, Angelique Van Ombergen, Ben Jeurissen, Steven Jillings, Steven Laureys, Jan Sijbers, Alexey Grishin, Ludmila Chernikova, Ivan Naumov, Ludmila Kornilova, Floris L. Wuyts, Elena Tomilovskaya, and Inessa Kozlovskaya
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spaceflight ,microgravity ,cosmonauts ,fMRI ,functional connectivity ,brain plasticity ,Physiology ,QP1-981 - Abstract
The present study reports alterations of task-based functional brain connectivity in a group of 11 cosmonauts after a long-duration spaceflight, compared to a healthy control group not involved in the space program. To elicit the postural and locomotor sensorimotor mechanisms that are usually most significantly impaired when space travelers return to Earth, a plantar stimulation paradigm was used in a block design fMRI study. The motor control system activated by the plantar stimulation involved the pre-central and post-central gyri, SMA, SII/operculum, and, to a lesser degree, the insular cortex and cerebellum. While no post-flight alterations were observed in terms of activation, the network-based statistics approach revealed task-specific functional connectivity modifications within a broader set of regions involving the activation sites along with other parts of the sensorimotor neural network and the visual, proprioceptive, and vestibular systems. The most notable findings included a post-flight increase in the stimulation-specific connectivity of the right posterior supramarginal gyrus with the rest of the brain; a strengthening of connections between the left and right insulae; decreased connectivity of the vestibular nuclei, right inferior parietal cortex (BA40) and cerebellum with areas associated with motor, visual, vestibular, and proprioception functions; and decreased coupling of the cerebellum with the visual cortex and the right inferior parietal cortex. The severity of space motion sickness symptoms was found to correlate with a post- to pre-flight difference in connectivity between the right supramarginal gyrus and the left anterior insula. Due to the complex nature and rapid dynamics of adaptation to gravity alterations, the post-flight findings might be attributed to both the long-term microgravity exposure and to the readaptation to Earth’s gravity that took place between the landing and post-flight MRI session. Nevertheless, the results have implications for the multisensory reweighting and gravitational motor system theories, generating hypotheses to be tested in future research.
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- 2019
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6. Dry Immersion as a Ground-Based Model of Microgravity Physiological Effects
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Elena Tomilovskaya, Tatiana Shigueva, Dimitry Sayenko, Ilya Rukavishnikov, and Inessa Kozlovskaya
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dry immersion ,motor control ,gravity unloading ,support withdrawal ,supportlessness ,Physiology ,QP1-981 - Abstract
Dry immersion (DI) is one of the most widely used ground models of microgravity. DI accurately and rapidly reproduces most of physiological effects of short-term space flights. The model simulates such factors of space flight as lack of support, mechanical and axial unloading as well as physical inactivity. The current manuscript gathers the results of physiological studies performed from the time of the model’s development. This review describes the changes induced by DI of different duration (from few hours to 56 days) in the neuromuscular, sensory-motor, cardiorespiratory, digestive and excretory, and immune systems, as well as in the metabolism and hemodynamics. DI reproduces practically the full spectrum of changes in the body systems during the exposure to microgravity. The numerous publications from Russian researchers, which until present were mostly inaccessible for scientists from other countries are summarized in this work. These data demonstrated and validated DI as a ground-based model for simulation of physiological effects of weightlessness. The magnitude and rate of physiological changes during DI makes this method advantageous as compared with other ground-based microgravity models. The actual and potential uses of the model are discussed in the context of fundamental studies and applications for Earth medicine.
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- 2019
- Full Text
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