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Background Method Results Conclusion Stroke survivors often face challenges in recovery and reintegration after acute care. Home‐based rehabilitation, incorporating advanced technologies like Functional Electrical Stimulation (FES), shows promise for improving long‐term outcomes by providing more accessible, high‐intensity, and task‐oriented rehabilitation outside traditional clinical settings.This study assessed efficacy and usability of a 10‐week home‐based rehabilitation protocol for 52 individuals with chronic stroke. The intervention featured a cloud‐based platform, a mobile application, and functional electrical stimulation devices. Participants were categorized into groups for tailored exercise training and received both synchronous and asynchronous sessions. Efficacy was measured through standardized motor function tests, while usability was evaluated based on adherence, patient satisfaction, and the frequency of technical support requests.High adherence (74.03%) and a satisfaction of 73% were observed. On average, patients performed on average 414 min of unsupervised exercise per week. Significant improvement, including a median decrease of 6.08 s (22%) in Timed Up and Go (TUG) [z (24) = 4.17, p < 0.001], a median decrease of 4.04 s (17%) in Five Times Sit to Stand (5STS) [z (28) = 3.96, p < 0.001], Motor Assessment Scale (MAS) showed a mean increase of 3.2 ± 2.8 points, paired t‐test [t (20) = −5.01 p < 0.001] and an increase of 0.095 m/s (28%) in 10‐Meter Walk Test (10MWT) [z (24) = 3.71, p < 0.001]. Clinical relevance was observed in all outcome measures compared with the reported Minimum Detectable Change.This evaluation of a home‐based physiotherapy protocol indicates that integrating FES devices with virtual platforms and mobile applications can sustain high adherence while improving functional outcomes in chronic stroke rehabilitation. The prescription of high‐intensity training, significant improvements in balance, gait, and overall functionality were observed, highlighting the viability of this approach for home‐based programs. [ABSTRACT FROM AUTHOR]

Following stroke, fatigue is highly prevalent and managing fatigue is consistently rated a key unmet need by stroke survivors and professionals. Domain-specific cognitive impairments have been associated with greater fatigue severity in earlier stages of stroke recovery, but it is unclear whether these associations hold in chronic (>2 years) stroke. The present cross-sectional observational study evaluates the relationship between domain-specific cognitive functioning and the severity of self-reported fatigue among chronic stroke survivors. Participants (N = 105; mean age = 72.92, 41.90% female; mean years post-stroke = 4.57) were assessed in domains of attention (Hearts Cancellation test), language (Boston Naming Test), episodic memory (Logical Memory Test), working memory (Digit Span Backwards task), and executive functioning (set-shifting: Trail Making Test, Part B), as part of the OX-CHRONIC study, a longitudinal stroke cohort. Fatigue was assessed using the Fatigue Severity Scale. In a multiple linear regression analysis inclusive of above cognitive domains, only poorer executive functioning was associated with increased fatigue severity. This provides insight into the cognitive impairment profile of post-stroke fatigue long-term after stroke, with executive functioning deficits as the key hallmark. [ABSTRACT FROM AUTHOR]

Objective: Many stroke survivors still present with upper-limb paresis six months post-stroke, impacting their autonomy and quality of life (QoL). We designed an enriched Music-supported Therapy (eMST) program to reduce disability in this population. We evaluated the eMST's effectiveness in improving functional abilities and QoL in chronic stroke individuals compared to the conventional motor program Graded Repetitive Arm Supplementary Program (GRASP). Methods: We conducted a pragmatic two-arm parallel-group randomized controlled trial with a 3-month follow-up and masked assessment. The eMST involved playing instruments during individual self-administered and group music therapy sessions. The GRASP consisted of self-administered motor exercises using daily objects. Both interventions were completed at home with telemonitoring and involved four one-hour weekly sessions for 10 weeks. The primary outcome was upper-limb motor function measured with the Action Research Arm Test. Secondary outcomes included motor impairment, daily life motor performance, cognitive functions, emotional well-being, QoL, self-regulation, and self-efficacy. Intention-to-treat (ITT) and per-protocol (PP) analyses were conducted including participants who discontinued the intervention and those who completed it entirely, respectively. Results: Fifty-eight chronic stroke patients were randomized to the eMST-group (n = 26; age: 64.2 ± 12.5; 6 [23.1%] females; 2.8 ± 2.9 years post-stroke), and the control group (n = 32; age: 62.2 ± 12; 8 [25%] females; 1.8 ± 6.2 years post-stroke). The eMST-group had more participants achieving a clinically relevant improvement in motor impairment post-intervention than the control group for the ITT (55% vs 21.6%; OR = 4.5 (95% CI 1.4–14); p =.019) and PP analyses (60% vs 20%; OR = 6 (95% CI 1.5–24.7); p =.024), sustained at follow-up. The eMST-group reported greater improvements in emotion (difference = 11.1 (95% CI 0.8–21.5; p = 0.36) and participation (difference = 10.3 (95% CI 0.6–25.9); p = 0.41) subscales of QoL, and higher enjoyment during the sessions (difference = 1 (95% CI 0.3–1.5); p = 0.12). No changes were found in other outcomes. Conclusion: eMST demonstrated superiority over conventional motor rehabilitation program in enhancing upper-limb functions and QoL in chronic stroke individuals. Trial Registration: ClinicalTrials.gov (ID: NCT04507542). [ABSTRACT FROM AUTHOR]

Ideomotor apraxia is a cognitive disorder most often resulting from acquired brain lesions (i.e., strokes or tumors). Neuroimaging and lesion studies have implicated several brain regions in praxis and apraxia, but most studies have described (sub)acute patients. This study aimed to extend previous research by analyzing data from 115 left hemisphere chronic stroke patients using the praxis subtest of the Western Aphasia Battery, which is divided into four action types: facial, upper limb, complex, and instrumental. Lesion–symptom mapping was used to identify brain regions most critically associated with difficulties in each of the four subtests. Complex and instrumental action deficits were associated with left precentral, postcentral, and superior parietal gyri (Brodmann areas 2, 3, 4, 5, and 6), while the facial and upper limb action deficits maps were restricted to left inferior, middle, and medial temporal gyri (Brodmann areas 20, 21, 22, and 48). We discuss ideas about neuroplasticity and cortical reorganization in chronic stroke and how different methodologies can reveal different aspects of lesion and recovery networks in apraxia. [ABSTRACT FROM AUTHOR]

Accurate segmentation of chronic stroke lesions from mono‐spectral magnetic resonance imaging scans (e.g., T1‐weighted images) is a difficult task due to the arbitrary shape, complex texture, variable size and intensities, and varied locations of the lesions. Due to this inherent spatial heterogeneity, existing machine learning methods have shown moderate performance for chronic lesion delineation. In this study, we introduced: (1) a method that integrates transformers' deformable feature attention mechanism with convolutional deep learning architecture to improve the accuracy and generalizability of stroke lesion segmentation, and (2) an ecological data augmentation technique based on inserting real lesions into intact brain regions. Our combination of these two approaches resulted in a significant increase in segmentation performance, with a Dice index of 0.82 (±0.39), outperforming the existing methods trained and tested on the same Anatomical Tracings of Lesions After Stroke (ATLAS) 2022 dataset. Our method performed relatively well even for cases with small stroke lesions. We validated the robustness of our method through an ablation study and by testing it on new unseen brain scans from the Ischemic Stroke Lesion Segmentation (ISLES) 2015 dataset. Overall, our proposed approach of transformers with ecological data augmentation offers a robust way to delineate chronic stroke lesions with clinically relevant accuracy. Our method can be extended to other challenging tasks that require automated detection and segmentation of diverse brain abnormalities from clinical scans. [ABSTRACT FROM AUTHOR]

The current study aimed to evaluate the effects of action observation on the walking ability and oscillatory brain activity of chronic stroke patients. Fourteen chronic stroke patients were allocated randomly to the action observation (AO) or sham observation (SO) groups. Both groups received 12 sessions of intervention. Each session composed of 12 min of observational training, which depicted exercises for the experimental group but nature pictures for the sham group and 40 min of occupational therapy, which was the same for the both groups. Walking ability was assessed by a motion analysis system and brain activity was monitored using quantitative electroencephalography (QEEG) before and after the intervention. Brain asymmetry at alpha frequency, the percentage of stance phase, and step length showed significant changes in the AO group. Only the change in global alpha power was significantly correlated with the change in velocity after the intervention in AO group. Despite more improvements in walking and brain activity of patients in the AO group, our study failed to show significant correlations between the brain activity changes and functional improvements after the intervention, which might be mainly due to the small sample size in our study. Trial registration: IRCT20181014041333N1 [ABSTRACT FROM AUTHOR]

Introduction: Stroke is one of the most debilitating diseases among adults worldwide and leads to persistent rehabilitation needs even at the chronic stage. Achieving good postural control is a critical requirement for daily activities which enhances quality of life (QoL) in patients with stroke. There is increasing evidence that transcranial direct current stimulation (tDCS) can be considered a promising adjunct technique to improve motor recovery after stroke. Evidence of augmented neuroplasticity after tDCS suggests that paired rehabilitation followed by consecutive use of tDCS may optimize recovery outcomes. Although a few randomized controlled trials have been conducted on upper limb rehabilitation in chronic stroke using tDCS, no study focused on balance training in chronic stroke patients. The present randomized, sham-controlled, double-blinded clinical study addresses brain stimulation targeting postural control using tDCS in chronic stroke. Methods: The study participants included chronic ischemic stroke individuals with postural control impairments who passed the exclusion criteria. Active or sham anodal tDCS was delivered to the lesioned leg motor cortex combined with balance training. The experimental group received active anodal tDCS stimulation (2 mA) for 20 min, daily for 5 days paired with balance training. Linear and nonlinear approaches were used to analyze postural sway changes pre-and post-intervention. Postural sway fluctuation, functional balance assessment using the Berg balance scale, and timed up-and-go test were conducted to compare the active and sham groups. Conclusion: This trial could have significant implications for balance rehabilitation after stroke in the ambulatory setting. If effective, this novel approach may improve rehabilitation protocol in this population. [ABSTRACT FROM AUTHOR]

Introduction: Visual field defects (VFDs) represent a debilitating poststroke complication, characterized by unseen parts of the visual field. Visual perceptual learning (VPL), involving repetitive visual training in blind visual fields, may effectively restore visual field sensitivity in cortical blindness. This current multicenter, double‐blind, randomized, controlled clinical trial investigated the efficacy and safety of VPL‐based digital therapeutics (Nunap Vision [NV]) for treating poststroke VFDs. Methods: Stroke outpatients with VFDs (>6 months after stroke onset) were randomized into NV (defective field training) or Nunap Vision‐Control (NV‐C, central field training) groups. Both interventions provided visual perceptual training, consisting of orientation, rotation, and depth discrimination, through a virtual reality head‐mounted display device 5 days a week for 12 weeks. The two groups received VFD assessments using Humphrey visual field (HVF) tests at baseline and 12‐week follow‐up. The final analysis included those completed the study (NV, n = 40; NV‐C, n = 35). Efficacy measures included improved visual area (sensitivity ≥6 dB) and changes in the HVF scores during the 12‐week period. Results: With a high compliance rate, NV and NV‐C training improved the visual areas in the defective hemifield (>72 degrees2) and the whole field (>108 degrees2), which are clinically meaningful improvements despite no significant between‐group differences. According to within‐group analyses, mean total deviation scores in the defective hemifield improved after NV training (p =.03) but not after NV‐C training (p =.12). Conclusions: The current trial suggests that VPL‐based digital therapeutics may induce clinically meaningful visual improvements in patients with poststroke VFDs. Yet, between‐group differences in therapeutic efficacy were not found as NV‐C training exhibited unexpected improvement comparable to NV training, possibly due to learning transfer effects. [ABSTRACT FROM AUTHOR]

Non-linear and dynamic systems analysis of human movement has recently become increasingly widespread with the intention of better reflecting how complexity affects the adaptability of motor systems, especially after a stroke. The main objective of this scoping review was to summarize the non-linear measures used in the analysis of kinetic, kinematic, and EMG data of human movement after stroke. PRISMA-ScR guidelines were followed, establishing the eligibility criteria, the population, the concept, and the contextual framework. The examined studies were published between 1 January 2013 and 12 April 2023, in English or Portuguese, and were indexed in the databases selected for this research: PubMed®, Web of Science®, Institute of Electrical and Electronics Engineers®, Science Direct® and Google Scholar®. In total, 14 of the 763 articles met the inclusion criteria. The non-linear measures identified included entropy (n = 11), fractal analysis (n = 1), the short-term local divergence exponent (n = 1), the maximum Floquet multiplier (n = 1), and the Lyapunov exponent (n = 1). These studies focused on different motor tasks: reaching to grasp (n = 2), reaching to point (n = 1), arm tracking (n = 2), elbow flexion (n = 5), elbow extension (n = 1), wrist and finger extension upward (lifting) (n = 1), knee extension (n = 1), and walking (n = 4). When studying the complexity of human movement in chronic post-stroke adults, entropy measures, particularly sample entropy, were preferred. Kinematic assessment was mainly performed using motion capture systems, with a focus on joint angles of the upper limbs. [ABSTRACT FROM AUTHOR]

Background: Stroke is the primary cause of long-term disability and mortality among adults and is classified as a chronic illness. After suffering a stroke, spasticity manifests in around thirty percent of cases. Aim: To evaluate the effect of spasticity in chronic hemiplegic upper extremities on electrophysiological and morphological characteristics of the median and ulnar nerves. Subjects and methods: This was cross-sectional research that was performed on 50 patients with chronic stroke at the Clinical Neurophysiology Unit, Neurology Department of Suez Canal University Hospitals, Suez Canal University and Ultrasonography Unit, Diagnostic Radiology Department, Ismailia, Egypt, from May 2021 to January 2023. All the patients were subjected to clinical evaluations: (Spasticity evaluation: including Brunnstrom Recovery Stages (BRS) and ultrasonographic measurements. Results: There was a statistically significant positive moderate association among ultrasonographic measures of median nerve (distal) and median nerve (proximal). On the paretic side, motor conduction velocities of the median nerve were significantly delayed (mean±SD) (48.3± 9.5) when compared with the non-paretic side (mean±SD) (54.4± 8.3) and pvalue (0.020) demonstrated that there were statistically significant variances. The F-wave latencies of the median nerve were significantly higher on the paretic sides (mean ± SD) (32.2± 5.1) when compared with the non-paretic (mean ± SD) (27.5± 3.9) side, and the p- value (0.011) showed that there were statistically significant differences. Conclusion: We concluded that stroke peripheral nerve cases seem to be influenced electrophysiologically on the paretic side. But according to US measurements, they weren't affected. [ABSTRACT FROM AUTHOR]

For some of the most commonly used motor measures, psychometric properties, and minimal detectable change (MDC95) remain largely unknown, limiting the interpretability of tests. The aim was to establish intrarater reliability, MDC95 and floor- and ceiling effects for a modified version of the Motor Assessment Scale (M-MAS UAS-99). Data was derived from an intervention study that enrolled 41 individuals with chronic stroke. Test scores from two subsequent assessments with 3 weeks apart were used for establishing the floor and ceiling effect, the intraclass correlation coefficient (ICC[2,1]), standard error mean (SEM) and the MDC95 for the total score, and subdomains of the M-MAS UAS-99. The intrarater reliability was excellent with an ICC[2,1] between 0.970 and 0.995 for both total score and subdomains. The MDC95 for the M-MAS UAS-99 total score was 1.22 which means ≥ 2.0 points on an individual basis. For bed mobility subdomain, a ceiling effect was seen, but not for the total score of the test. No floor effect was seen for the test. M-MAS UAS-99 has excellent intrarater reliability. Any individual increase in test scores must reach 2.0 to be considered a true change. [ABSTRACT FROM AUTHOR]

BACKGROUND: To improve gait disability in patients with chronic stroke, ankle muscle strengthening and calf muscle stretching exercises are required. However, currently available ankle training equipment limit ankle exercises based on the position. Recently developed ankle training equipment enables spring resistance-based plantar press exercises to be performed in the standing position with weight support. OBJECTIVE: To conduct a usability test of the ankle training equipment in the standing position by stroke patients with hemiplegic gait and verify its effects on ankle movements. METHODS: The ankle training equipment was applied to five patients with chronic stroke and hemiplegic gait. In the standing position, the patients performed forefoot and rearfoot press exercises in the affected side with a day's interval at 20 repetitions maximum (RM). During the exercises, surface electromyography (sEMG) was used to measure the maximum voluntary isometric contraction (%MVIC) of the leg muscles. The System Usability Scale (SUS) was used to assess the ankle training equipment. Wilcoxon signed-rank test was used to evaluate the differences in muscle activity between the two exercises. RESULTS: Forefoot and rearfoot press exercises increased the %MVIC in the biceps femoris. Additionally, the tibialis anterior and medial gastrocnemius activity was significantly different between the two exercises. The SUS was 78.75% (SD 12.7). CONCLUSION: The usability test of the passive-control foot press trainer (PFPT) that with improvements in the structure and functions for convenience, it could be commercialized. PFPT could be an alternative to the ankle rehabilitation robot that necessitates a sitting position. [ABSTRACT FROM AUTHOR]

Immersive Virtual Reality (VR) systems allow for highly repetitive tasks to be performed within a virtual environment that increases practice in home environments. VR can increase access to rehabilitation by reducing access barriers. However, rehabilitation outcomes between immersive VR systems and conventional physical rehabilitation are not well understood. The purpose of this case study was to assess the use of a custom clinically based VR simulation for testing gross hand dexterity with an individual with chronic stroke. The participant performed the box and blocks test (BBT) in an immersive VR environment and a physical environment. Three trials of the BBT were performed with their less-affected and affected hands each in both environments while measuring cortical activity using fNIRS. Rests were given between trials and environment conditions. Our results show that there was no statistical difference in the number of blocks moved between the physical and VR BBT for both the affected and less-affected hands. Furthermore, our results also indicate no statistically significant difference between the physical BBT and VR BBT conditions on contralateral motor cortex activation, suggesting that cortical involvement is comparable between physical and VR conditions. These results suggest that an immersive VR system may be able to elicit functional and motor cortex activations that are comparable to the conventional physical BBT. Importantly, these findings highlights the potential benefits of VR therapy as a remote therapy intervention and/or to increase the effectiveness and practicality of current in-person rehabilitation programs. These findings highlight the potential benefits of immersive virtual reality as a remote therapy intervention. Immersive virtual reality use has potential benefits to increase the effectiveness and practicality of current in-person rehabilitation programs. [ABSTRACT FROM AUTHOR]

Background and Purpose: Community mobility post‐stroke is important for gaining independence in daily activities. Walking devices can facilitate mobility, but it remains unclear whether individuals who use a walking device walk as many daily steps as those who do not require a device. It is also unclear whether these groups differ in their independence in daily living. This study aimed (1) to compare daily steps, walking tests, and independence in basic and instrumental activities of daily living (IADL) six months post‐stroke between individuals who walk independently and individuals who use a walking device, (2) within each group to assess correlations between daily steps and walking tests, independence in basic and IADL. Methods: Thirty‐seven community‐dwelling individuals with chronic stroke; 22 participants used a walking‐device and 15 participants walked independently. Daily steps were calculated as a 3‐day mean by hip accelerometers. Clinical walking tests included the 10‐m‐walk‐test, Timed Up & Go and 'Walking While Talking'. Daily living was assessed using the Functional‐Independence Measure and the IADL questionnaire. Results: Daily steps of the device‐users were significantly lower than the independent‐walkers (195–8068 versus 147‐14010 steps/day) but independence in daily living was not significantly different. Different walking tests correlated with daily steps for device‐users and independent‐walkers. Conclusions: This preliminary investigation in chronic stroke revealed that device‐users walk significantly fewer daily steps but are as independent in daily living as independent‐walkers. Clinicians should differentiate between individuals with and without a walking device and the use of different clinical walking tests to explain daily steps should be considered. Further research is needed to assess the impact of a walking device post‐stroke. [ABSTRACT FROM AUTHOR]

Background: We aim to study the association between spasticity and active range of motion (ROM) during four repetitive functional tasks such as cone stacking (CS), fast flexion–extension (FFE), fast ball squeezing (FBS), and slow ball squeezing (SBS), and predicted spasticity models. Methods: An experimental study with control and stroke groups was conducted in a Medical Center. A total of sixty-four participants, including healthy control (n = 22; average age (years) = 54.68 ± 9.63; male/female = 12/10) and chronic stroke survivors (n = 42; average age = 56.83 ± 11.74; male/female = 32/10) were recruited. We employed a previously developed smart glove device mounted with multiple inertial measurement unit (IMU) sensors on the upper limbs of healthy and chronic stroke individuals. The recorded ROMs were used to predict subjective spasticity through generalized estimating equations (GEE) for the affected side. Results: The models have significant (p ≤ 0.05 *) prediction of spasticity for the elbow, thumb, index, middle, ring, and little fingers. Overall, during SBS and FFE activities, the maximum number of upper limb joints attained the greater average ROMs. For large joints, the elbow during CS and the wrist during FFE have the highest average ROMs, but smaller joints and the wrist have covered the highest average ROMs during FFE, FBS, and SBS activities. Conclusions: Thus, it is concluded that CS can be used for spasticity assessment of the elbow, FFE for the wrist, and SBS, FFE, and FBS activities for the thumb and finger joints in chronic stroke survivors. [ABSTRACT FROM AUTHOR]

Objective: The aim of this systematic review was to determine if the diagnostic capabilities of wearable accelerometers enhanced, provided earlier detection, or improved fall risk assessment when evaluating individuals with chronic stroke. Data sources: CINAHL and PubMed databases were searched for articles from 2015 to 2023 utilizing key terms. Review methods: A team of researchers reviewed articles for bias via the Quality in Prognostic Studies tool, and further analyzed the data to answer the research question. Results: Four studies were included in the systematic review. When utilizing an accelerometer, the vertical axis was most predictive of falls, followed by the medio-lateral axis and the anterior-posterior axis. L2-3 was the most common accelerometer placement for fall risk assessment, however no uniformity existed in the literature on placement, number of accelerometers, or type. It was determined that gait symmetry, the Timed Up and Go, Berg Balance Scale, and Longitudinal Aging Study Amsterdam best predicted falls risk. Conclusion: Based on limited available evidence, clinicians should continue to perform a comprehensive examination and evaluation for fall risk, that includes the use of a combination of evidence-based outcome measures and gait characteristics to develop an individualized plan of care for individuals post-stroke. However, further research is necessary to determine the added value of accelerometers as well as type, applicability of data, and placement. [ABSTRACT FROM AUTHOR]

Introduction and Objectives - Approximately 80% of stroke survivors have balance impairments and 58% risk of falling in the first year after stroke. Aquatic physiotherapy is one of the interventions that has been used for this purpose. The main goal of this study is to identify the effects of an aquatic physiotherapy program on people with chronic stroke, with a risk of falls. Methods - This is a case series report, with three chronic stroke survivors (21 to 41 months). Outcome measures were: EEB, TUG, and ECEEA. The program had a duration of eight weeks, with a frequency of two times a week, for 45 minutes. Results - TUG results decreased (14 to 36 seconds), EEB (10 to 16 points) and ECEEA increased (3.13 and 6.88%). Discussion and Conclusion - All participants improved their clinical status by increasing balance. TUG and EEB had clinical meaning, revealing a significant decrease in the risk of falls. Contrary to these results, those obtained by ECEEA show that participants maintain a fear of falling. Despite the results, the sample size is too small and doesn't allow generalizations. [ABSTRACT FROM AUTHOR]

Background: Chronic stroke patients usually experience reduced hand functions, impeding their ability to perform activities of daily living (ADLs) independently. Additionally, improvements in hand functions by physical therapy beyond six months after the initial onset of stroke are much slower than in the earlier months. As such, chronic stroke patients could benefit from an assistive device to enhance their hand functions, allowing them to perform ADLs independently daily. In recent years, soft robotics has provided a novel approach to assistive devices for motor impaired individuals, offering more compliant and lightweight alternatives to traditional robotic devices. The scope of this study is to demonstrate the viability of a fabric-based soft robotic (SR) glove with bidirectional actuators in assisting chronic stroke study participants with hand impairments in performing ADLs. Methods: Force and torque measurement tests were conducted to characterize the SR Glove, and hand functional tasks were given to eight chronic stroke patients to assess the efficacy of the SR Glove as an assistive device. The tasks involved object manipulation tasks that simulate ADLs, and the series of tasks was done by the participants once without assistance for baseline data, and once while using the SR Glove. A usability questionnaire was also given to each participant after the tasks were done to gain insight into how the SR Glove impacts their confidence and reliance on support while performing ADLs. Results: The SR Glove improved the participants' manipulation of objects in ADL tasks. The difference in mean scores between the unassisted and assisted conditions was significant across all participants. Additionally, the usability questionnaire showed the participants felt more confident and less reliant on support while using the SR Glove to perform ADLs than without the SR Glove. Conclusions: The results from this study demonstrated that the SR Glove is a viable option to assist hand function in chronic stroke patients who suffer from hand motor impairments. [ABSTRACT FROM AUTHOR]

Objective: This study aimed to test the comparative efficacy of virtual balance training (VBT) and conservative rehabilitation (CR) relative to CR alone on balance in chronic stroke patients. Methods: Thirty patients with chronic stroke (>6-months post-stroke) were allocated into 2 groups (n=15) as Group CR and Group VBT. CR was performed for 60 min, 4 times a week, for 8 weeks in both groups. VBT was applied for 20 min, 4 times a week, for 8 weeks along with the CR, in Group VBT. Brunnstrom motor recovery (BMR) stage, spasticity degrees, Functional Ambulation Scale (FAS), Short Form-36 (SF-36) scale, Berg Balance Scale (BBS) in both groups were assessed before and after treatment. Mann-Whitney U, Wilcoxon signed rank tests were used to evaluate BBS data (p<0.05). Results: Although, no significant difference was observed between groups in terms of BBS scores, BMR stages, FAS scores, SF-36 scale scores, and spasticity degrees before and after treatment; significant improvements were observed in BBS scores, BMR stages, and FAS scores after treatment in both groups (p<0.05). Comparing the SF-36 subscale scores before and after treatment, significant differences were noted in emotional role limitation scores for Group VBT (p=0.03) and in pain scores for Group CR (p=0.01). Conclusion: VBT along with the CR in chronic stroke patients was not superior to the CR alone, in terms of improving balance, motor recovery, ambulation level, and quality of life. [ABSTRACT FROM AUTHOR]

Background: Given the heterogeneity of stroke, it is important to determine the best course of motor therapy for each patient, i.e., to personalize rehabilitation based on predictions of long-term outcomes. Here, we propose a hierarchical Bayesian dynamic (i.e., state-space) model (HBDM) to forecast long-term changes in a motor outcome due to rehabilitation in the chronic phase post-stroke. Methods: The model incorporates the effects of clinician-supervised training, self-training, and forgetting. In addition, to improve forecasting early in rehabilitation, when data are sparse or unavailable, we use the Bayesian hierarchical modeling technique to incorporate prior information from similar patients. We use HBDM to re-analyze the Motor Activity Log (MAL) data of participants with chronic stroke included in two clinical trials: (1) the DOSE trial, in which participants were assigned to a 0, 15, 30, or 60-h dose condition (data of 40 participants analyzed), and (2) the EXCITE trial, in which participants were assigned a 60-h dose, in either an immediate or a delayed condition (95 participants analyzed). Results: For both datasets, HBDM accounts well for individual dynamics in the MAL during and outside of training: mean RMSE = 0.28 for all 40 DOSE participants (participant-level RMSE 0.26 ± 0.19—95% CI) and mean RMSE = 0.325 for all 95 EXCITE participants (participant-level RMSE 0.32 ± 0.31), which are small compared to the 0-5 range of the MAL. Bayesian leave-one-out cross-validation shows that the model has better predictive accuracy than static regression models and simpler dynamic models that do not account for the effect of supervised training, self-training, or forgetting. We then showcase model's ability to forecast the MAL of "new" participants up to 8 months ahead. The mean RMSE at 6 months post-training was 1.36 using only the baseline MAL and then decreased to 0.91, 0.79, and 0.69 (respectively) with the MAL following the 1st, 2nd, and 3rd bouts of training. In addition, hierarchical modeling improves prediction for a patient early in training. Finally, we verify that this model, despite its simplicity, can reproduce previous findings of the DOSE trial on the efficiency, efficacy, and retention of motor therapy. Conclusions: In future work, such forecasting models can be used to simulate different stages of recovery, dosages, and training schedules to optimize rehabilitation for each person. Trial registration This study contains a re-analysis of data from the DOSE clinical trial ID NCT01749358 and the EXCITE clinical trial ID NCT00057018 [ABSTRACT FROM AUTHOR]

In recent years, innovative interactive technologies, such as virtual reality, have emerged as a valuable approach in the rehabilitation of aphasia. Indeed, they offer the opportunity to practice activities that are not or cannot be usually carried out within the clinical environment, and that are aimed at increasing cognitive and motor domains. The aim of this study was to investigate the efficacy and the long-term effects of the BTS-Nirvana, a rehabilitative device that uses semi-immersive virtual reality in the treatment of chronic post-stroke aphasia. Thirty patients with non-fluent aphasia due to first ever ischemic stroke (mean ± SD age: 51.2 ± 11.3 years) were enrolled in this study and randomized into either a control group (n = 15) undergoing conventional speech and cognitive training or an experimental group (n = 15) receiving the same amount of training using BTS-Nirvana. The "Esame Neuropsicologico per l'Afasia" (ENPA) subtests (repetition, reading, naming, writing, and calculation) and the Token test were the main outcome measures. After the training (T1), the experimental group achieved a greater improvement in Token test, reading, naming, and calculation than the control group. Notably, these positive outcomes were maintained at the 6-month follow-up (T2). These results support previous findings that virtual reality can be considered a useful complementary treatment to potentiate functional recovery of speech ability in patients affected by post-stroke aphasia. [ABSTRACT FROM AUTHOR]

[Display omitted] • NIBS induce changes in neural activity, promoting cognitive and motor recovery. • NIBS can be a useful tool for cognitive dysfunction in chronic stroke. • NIBS may improve language and emotional deficits following stroke. Non-invasive brain stimulation induces changes in spontaneous neural activity in the cerebral cortex through facilitatory or inhibitory mechanisms, relying on neuromodulation of neural excitability to impact brain plasticity. This systematic review assesses the state-of-the art and existing evidence regarding the effectiveness of NIBS in cognitive recovery among patients with chronic stroke. We conducted a systematic search, following PRISMA guidelines, for articles published from January 2010 through September 2023. We searched the following databases: PubMed, Embase, Cochrane Database of Systematic Reviews, PEDro, Rehab Data, and Web of Science. Our electronic searches identified 109 papers. We assessed and included 61 studies based on their pertinence and relevance to the topic. After reading the full text of the selected publications and applying predefined inclusion criteria, we excluded 32 articles, leaving 28 articles for our qualitative analysis. We categorized our results into two sections as follows: (1) Cognitive and emotional domains (11 studies), (2) language and speech functions (16 studies). Our findings highlight the potential of NIBS, such as tDCS and rTMS, in the cognitive, linguistic, and emotional recovery of post-stroke patients. Although it seems that NIBS may work as a complementary tool to enhance cognitive and communication abilities in patients with stroke –also in the chronic phase- evidence on behavioural outcomes is still poor. Future studies should focus on this important issue to confirm the effectiveness of neuromodulation in chronic neurological diseases. PROSPERO Registration : CRD42023458370. [ABSTRACT FROM AUTHOR]

Background: Therapeutic exercise for gait function using an exoskeleton-assisted Body Weight Supported Treadmill Training (BWSTT) has been identified as a potential intervention that allows for task-based repetitive training with appropriate kinematics while adjusting the amount of body weight support (BWS). Nonetheless, its effect on gait in patients with stroke in the chronic phase are yet to be clarified. The primary aim of this scoping review was to present the status of effectiveness of exoskeleton-assisted BWSTT in patients with chronic stroke. The secondary aims were to summarise intervention protocols, types and functions of BWSTT exoskeletal robotic devices currently used clinically. Method and results: Articles were accessed and collected from PubMed, Ovid MEDLINE, Cochrane Central Register of Controlled Trials, and Web of Science databases, which were completed in October 2020. Articles were included if the subjects were adults with stroke in the chronic phase (onset ≥ 6 months) and if they utilised a robotic exoskeleton with treadmill and body weight support and investigated the efficacy of gait exercise. A total of 721 studies were identified, of which 11 randomised controlled trials were selected. All included studies were published from 2008 to 2020. Overall, 309 subjects were enrolled; of these, 241 (156 males, 85 females) participated. Walking outcome measures were used more often to evaluate the functional aspects of gait than to evaluate gait independence. In 10 of 11 studies, showed the effectiveness of exoskeleton robot-assisted BWSTT in terms of outcomes contributing to improved gait function. Two studies reported that exoskeleton-assisted BWSTT with combination therapy was significantly more effective in improving than exoskeleton-assisted BWSTT alone. However, no significant difference was identified between the groups; compared with therapist-assisted BWSTT groups, exoskeleton-assisted BWSTT groups did not exhibit significant change. Conclusion: This review suggests that exoskeleton-assisted BWSTT for patients with chronic stroke may be effective in improving walking function. However, the potential may be "to assist" and not because of using the robot. Further studies are required to verify its efficacy and strengthen evidence on intervention protocols. [ABSTRACT FROM AUTHOR]

Summary: Poor sleep and chronic fatigue are common in people with chronic stroke (i.e. ≥ 6 months post‐stroke). Exercise training is a viable, low‐cost therapy for promoting sleep and reducing fatigue; however, the effects of exercise on sleep and fatigue in people with chronic stroke are unclear. Thus, we conducted a systematic review ascertaining the effects of exercise on sleep and fatigue in people with chronic stroke. We systematically searched EMBASE, MEDLINE, AgeLine, the Cochrane Database of Systematic Reviews, CINAHL, SPORTDiscus, SCOPUS, and reference lists of relevant reviews for articles that examined the effects of exercise on sleep or fatigue in chronic stroke. Search results were limited to adults ≥ 18 years, randomized controlled trials, non‐randomized trials, and pre–post studies, which were published in English and examined the effects of exercise on sleep or fatigue in people with chronic stroke. We extracted study characteristics and information on the measurement of sleep and fatigue, and assessed study quality and risk of bias using the CONSORT criteria and Cochrane risk‐of‐bias tool, respectively. We found two studies that examined the effects of exercise on sleep, and two that examined the effects of exercise on fatigue. All studies reported positive effects of exercise training on sleep and fatigue; however, there were concerns of bias and study quality in all studies. There is preliminary evidence that exercise promotes sleep and reduces fatigue in people with chronic stroke; however, the extent to which exercise impacts these health parameters is unclear. [ABSTRACT FROM AUTHOR]

BACKGROUND: Numerous studies have investigated factors for trunk, balance stability and gait parameters of post-stroke patients. Evidence-based recommendations are required for the treatment of ankle proprioceptive exercise with thermal stimulation in post-stroke patients. OBJECTIVE: We investigated the effects of ankle proprioceptive exercise with thermal stimulation on the trunk stability, balance, and gait ability of post-stroke patients. METHODS: A total of 30 patients were randomly divided into the ankle proprioceptive training and thermal stimulation group (APT) and control group. The APT group performed ankle proprioceptive exercises with thermal stimulation for 60 min five times a week for eight weeks. The control group followed conservative treatment for 60 min five times a week for eight weeks. Trunk stability was measured with the trunk impairment scale (TIS) and balance tests were performed with the center of pressure (COP), limits of stability (LOS), Berg Balance Scale (BBS), and functional reach test (FRT) and gait ability was performed by OptoGait and 10 m WT. RESULTS: There was a significant difference (p< 0.05) between before and after training in both groups. The APT group showed significant improvement in both groups. CONCLUSION: This study can be used as intervention data for recovering trunk, balance stability and gait parameters in post-stroke patients. [ABSTRACT FROM AUTHOR]

To design and test the feasibility of context-specific activities for improving physical activity (PA) levels among Indian adults with stroke. Context-specific activities were developed after a thorough literature search and inputs from five adults with stroke and five experts. Following which 17 adults with stroke were recruited. Participants were asked to choose at least three activities from the list of context-specific activities and to perform them every day for one month. Participants' pre and post-intervention PA levels and quality of life (QoL) were assessed using the physical activity scale for individuals with physical disabilities (PASIPD) and stroke specific quality of life (SSQoL). At the end of the program, participants were also interviewed to explore their experiences with the program. The list of context-specific activities included 45 activities under aerobic, strengthening, and balance domains. Fifteen participants [mean (SD) age 56.94 (9.87)] completed the one-month intervention. Intervention adherence rate was 86.6%. No adverse events were noted, and participants were satisfied with the program. PASIPD and SSQoL (MD − 6.52) scores showed significant improvement post-intervention. Context-specific activities are designed for Indian adults with stroke. Context-specific activities are feasible, safe and help to improve PA and QoL. [ABSTRACT FROM AUTHOR]

Computerized Cognitive Training (CCT) is an effective treatment for cognitive impairment in the post-acute stage of stroke. However, it is still not clear if it is suitable for chronic stage. To explore if patients with cognitive deficit following stroke may benefit from CCT. Thirty patients post-stroke between 24 and 62 years old were randomized into two groups (A and B) to receive two different types of CCT. All patients were tested with a neuropsychological battery and functional questionnaires, before and after each CCT and also 6 months after the end of the study. In phase I, Group A received a customized CCT and Group B received a non-customized CCT, over 6 weeks. Three months after, each group received the other intervention (phase II). After phase I, between-group analyses revealed that Group A showed a relative decrease in subjective complaints. In contrast, Group B showed improvement in performance-based measures. After phase II, the decrease in subjective complaints continued in Group A, and both groups showed improvement in performance-based measures. Patients with chronic stroke improved cognitive functioning after performing supervised home-based multi-domain computerized cognitive training. [ABSTRACT FROM AUTHOR]

Background: Hospital-based stroke rehabilitation for stroke survivors in developing countries may be limited by staffing ratios and length of stay that could hamper recovery potential. Thus, a home-based, gamified rehabilitation system (i.e., IntelliRehab) was tested for its ability to increase cerebral blood flow (CBF), and the secondary impact of changes on the upper limb motor function and functional outcomes.Objective: To explore the effect of IntelliRehab on CBF in chronic stroke patients and its correlation with the upper limb motor function.Methods: Two-dimensional pulsed Arterial Spin Labelling (2D-pASL) was used to obtain CBF images of stable, chronic stroke subjects (n = 8) over 3-months intervention period. CBF alterations were mapped, and the detected differences were marked as regions of interest. Motor functions represented by Fugl-Meyer Upper Extremity Assessment (FMA) and Stroke Impact Scale (SIS) were used to assess the primary and secondary outcomes, respectively.Results: Regional CBF were significantly increased in right inferior temporal gyrus and left superior temporal white matter after 1-month (p = 0.044) and 3-months (p = 0.01) of rehabilitation, respectively. However, regional CBF in left middle fronto-orbital gyrus significantly declined after 1-month of rehabilitation (p = 0.012). Moreover, SIS-Q7 and FMA scores significantly increased after 1-month and 3-months of rehabilitation. There were no significant correlations, however, between CBF changes and upper limb motor function.Conclusions: Participants demonstrated improved motor functions, supporting the benefit of using IntelliRehab as a tool for home-based rehabilitation. However, within-participant improvements may have limited potential that suggests the need for a timely administration of IntelliRehab to get the maximum capacity of improvement. [ABSTRACT FROM AUTHOR]

Purpose: To translate and culturally adapt the Modified Fatigue Impact Scale (MFIS) to Chinese version, and to psychometrically test it in stroke population.Methods: This study consisted of 2 phases. In phase one, we translated and culturally adopted the original English version of MFIS into Chinese (Cantonese) (MFIS-C). In phase two, the MFIS was psychometrically tested using a cohort of community-dwelling people with stroke (n = 101) and healthy control (n = 50). Among the stroke participants, 52 of them were reassessed after a 1-week interval.Results: The MFIS-C demonstrated satisfactory content validity and good to excellent internal consistency. The overall MFIS-C and its subscales have good test-retest reliability. The MDC95 were 14.86, 7.49, and 9.70 for the overall MFIS-C physical, cognitive and psychosocial subscales, respectively. The overall MFIS-C and its 2 subscales have significant weak to moderate negative correlations with the Community Integration Measure and the 12-item Short Form Health Survey Version 2. Our findings revealed that the people with chronic stroke living in Hong Kong were reported to have high level of fatigue.Conclusion: The MFIS-C is a reliable and valid measure for assessing the level of fatigue in people with stroke. [ABSTRACT FROM AUTHOR]

Stroke survivors develop late complications after stroke (LCAS) that impair return to pre-stroke responsibilities. Optimal strategies for detection have not been developed. We assessed differences in LCAS symptom detection among young stroke survivors undergoing active surveillance versus usual care. This was a retrospective cohort study including patients age 18–50 with ischemic stroke, transient ischemic attack, or intracerebral hemorrhage evaluated in a Stroke Clinic between 1/1/2016–12/31/2017 with at least one outpatient evaluation during the first year after stroke. "Active surveillance" involved a semi-structured interview to elicit LCAS symptoms including headache, seizures, lethargy, mood disorders, cognitive impairment, central pain, insomnia, spasticity, dystonia, and orthostasis. "Usual care" did not involve the interview. Rates of LCAS symptom detection were assessed at 0–3 months and 3–12 months. One hundred twenty-one stroke survivors were included, of which 37% (45) underwent active surveillance. There were no differences in baseline characteristics except hospitalization location. Patients undergoing active surveillance were more likely to have at least one LCAS symptom detected (77% vs 49% at 0–3 months, p = 0.02; 81% vs. 54% at 3–12 months, p = 0.008). Active surveillance was more likely to detect symptoms of non-motor LCAS. There were no differences for motor LCAS. Active surveillance leads to higher rates of early symptom detection of non-motor LCAS in young stroke survivors. Young stroke survivors frequently have late complications after stroke (LCAS) that impair return to pre-stroke responsibilities. Active surveillance for LCAS symptoms with a semi-structured interview increases detection of non-motor late complications. A bundled approach to screening for LCAS symptoms is pragmatic as a majority of young stroke survivors have at least one symptom but no single symptom is present in all stroke survivors. [ABSTRACT FROM AUTHOR]

Background: Fatigue and emotional distress rank high among self‐reported unmet needs in life after stroke. Transcranial direct current stimulation (tDCS) may have the potential to alleviate these symptoms for some patients, but the acceptability and effects for chronic stroke survivors need to be explored in randomized controlled trials. Methods: Using a randomized sham‐controlled parallel design, we evaluated whether six sessions of 1 mA tDCS (anodal over F3, cathodal over O2) combined with computerized cognitive training reduced self‐reported symptoms of fatigue and depression. Among the 74 chronic stroke patients enrolled at baseline, 54 patients completed the intervention. Measures of fatigue and depression were collected at five time points spanning a 2 months period. Results: While symptoms of fatigue and depression were reduced during the course of the intervention, Bayesian analyses provided evidence for no added beneficial effect of tDCS. Less severe baseline symptoms were associated with higher performance improvement in select cognitive tasks, and study withdrawal was higher in patients with more fatigue and younger age. Time‐resolved symptom analyses by a network approach suggested higher centrality of fatigue items (except item 1 and 2) than depression items. Conclusion: The results reveal no add‐on effect of tDCS on fatigue or depression but support the notion of fatigue as a relevant clinical symptom with possible implications for treatment adherence and response. [ABSTRACT FROM AUTHOR]

Background: Various priming techniques to enhance neuroplasticity have been examined in stroke rehabilitation research. Most priming techniques are costly and approved only for research. Here, we describe a priming technique that is cost-effective and has potential to significantly change clinical practice. Bilateral motor priming uses the Exsurgo priming device (Exsurgo Rehabilitation, Auckland, NZ) so that the less affected limb drives the more affected limb in bilateral symmetrical wrist flexion and extension. The aim of this study is to determine the effects of a 5-week protocol of bilateral motor priming in combination with task-specific training on motor impairment of the affected limb, bimanual motor function, and interhemispheric inhibition in moderate to severely impaired people with stroke.Methods: Seventy-six participants will be randomized to receive either 15, 2-h sessions, 3 times per week for 5 weeks (30 h of intervention) of bilateral motor priming and task-specific training (experimental group) or the same dose of control priming plus the task-specific training protocol. The experimental group performs bilateral symmetrical arm movements via the Exsurgo priming device which allows both wrists to move in rhythmic, symmetrical wrist flexion and extension for 15 min. The goal is one cycle (wrist flexion and wrist extension) per second. The control priming group receives transcutaneous electrical stimulation below sensory threshold for 15 min prior to the same 45 min of task-specific training. Outcome measures are collected at pre-intervention, post-intervention, and follow-up (8 weeks post-intervention). The primary outcome measure is the Fugl-Meyer Test of Upper Extremity Function. The secondary outcome is the Chedoke Arm and Hand Activity Index-Nine, an assessment of bimanual functional tasks.Discussion: To date, there are only 6 studies documenting the efficacy of priming using bilateral movements, 4 of which are pilot or feasibility studies. This is the first large-scale clinical trial of bilateral priming plus task-specific training. We have previously completed a feasibility intervention study of bilateral motor priming plus task-specific training and have considerable experience using this protocol.Trial Registration: ClinicalTrials.gov NCT03517657 . Retrospectively registered on May 7, 2018. [ABSTRACT FROM AUTHOR]

Objective: This study examined the effect of core stability exercises on trunk control, core muscle strength, standing weight-bearing symmetry, and balance confidence of people with chronic stroke. Design : This was an assessor-blinded randomized controlled trial involving 84 ambulatory patients with middle cerebral artery stroke, randomly assigned to three training groups. Two experimental groups practiced core stability exercises either on stable or on unstable support surfaces. In contrast, the control group received standard physiotherapy. All the participants underwent an hour-long training session a day, thrice a week over a 6-wk duration, and followed-up after 12 mos. Trunk Impairment Scale, core muscle strength, weight-bearing asymmetry in standing, and Activities-specific Balance Confidence scale were the outcome measures. Results : Compared with the control group, the two experimental groups demonstrated a significant improvement on all the outcome measures from baseline to posttraining and from baseline to 12-mo follow-up (P < 0.001). The two experimental groups demonstrated no significant difference between them on all the measures (P > 0.05). Conclusions : Core stability exercises on stable and unstable support surfaces are equally beneficial in improving trunk control, core muscle strength, standing weight-bearing symmetry, and balance confidence of ambulatory patients with chronic stroke than the standard physiotherapy. [ABSTRACT FROM AUTHOR]

Aims: The aim of this review is to synthesize and evaluate effectiveness of exergaming on balance, lower limb functional mobility and functional independence in individuals with chronic stroke. Design: The present review is a systematic review and meta‐analysis. The review is written in accordance with the guidelines from the Preferred Reporting Items for Systematic Review and Meta‐Analysis (PRISMA) Data Source: Searches were conducted across seven databases (PubMed, EMBASE, Web of Science, CINAHL, CENTRAL, Scopus and PEDro) and in grey literature from inception until January 2021. Review Methods: Only randomized controlled trials (RCTs) written in English were included. All eligible studies were assessed for risk of bias by two reviewers independently. Meta‐analyses were performed using RevMan 5.4.1 software. Narrative syntheses were adopted whenever meta‐analysis was inappropriate. The overall quality of evidence from included studies was assessed using the Grading of Recommendations, Assessment, Development and Evaluations (GRADE) framework. Results: 4511 records were retrieved, with 32 RCTs eligible for inclusion and 27 RCTs included in meta‐analysis. Meta‐analyses reported statistically significant small effect sizes favouring exergaming on balance (pooled standardized mean difference [SMD] = 0.25, 95% confidence interval [CI, 0.08–0.41], p =.004), lower limb functional mobility (pooled SMD = 0.29, 95% CI [0.08–0.50], p =.007) and functional independence (pooled SMD = 0.41, 95% CI [0.09–0.73], p =.01). Most of the included studies failed to provide adequate description of the measures taken to prevent bias. Conclusion: Exergaming has favourable effects on improving balance, lower limb functional mobility and functional independence among individuals with chronic stroke, making it a suitable adjunct to conventional physiotherapy. Impact: People with chronic stroke have difficulty achieving the required rehab intensity. Exergaming can help individuals with chronic stroke to undertake further rehabilitation exercises at home. It can be a suitable adjunct to conventional physiotherapy. [ABSTRACT FROM AUTHOR]

Chronic lexical anomia after left hemisphere (LH) stroke improves under personalized phonological treatment (PT). Cortical linking between language and hand motor areas (hand_M1) questioned whether PT-related improvement relies on the unlesioned hemisphere (UH) plasticity when LH is dysfunctional. Our 70-yo-woman case study showed that 10 sessions of excitatory stimulation of UH_hand-M1 combined with PT hastened oral picture naming improvement as compared to sham+PT and changes were maintained together with changes of untrained items andcorticomotor excitability increase. This supports a role of stimulation-induced plasticity of UH_hand M1 in language recovery, at least in the improvement of lexical anomia in chronic stroke. [ABSTRACT FROM AUTHOR]

Background: Transcranial direct current stimulation (tDCS) is a noninvasive brain stimulation to modulate cortical activity for improving motor function. However, the different tDCS applications for modulating cortical activity and dual task gait performance in chronic stroke have not yet been investigated. This study investigated the effects of different tDCS applications on dual task gait performance and contralesional M1 activation in chronic stroke.Methods: Forty-eight participants were randomized to anodal, bilateral, cathodal, and sham tDCS groups. Each group received 20 min of tDCS stimulation, except the sham group. Gait performance was measured by GaitRite system during cognitive dual task (CDT) walking, motor dual task (MDT) walking, and single walking (SW). Contralesional M1 activity of unaffected tibialis anterior (TA) was measured using transcranial magnetic stimulation (TMS). Intragroup difference was analyzed by Wilconxon sign ranks test with Bonferroni correction, and Kruskal-Wallis one-way analysis of variance by ranks was used for intergroup comparisons, followed by post-hoc Mann-Whitney U tests with Bonferroni correction.Results: The bilateral tDCS (p = 0.017) and cathodal tDCS (p = 0.010) improved the CDT walking speed more than sham group. The bilateral tDCS (p = 0.048) and cathodal tDCS (p = 0.048) also improved the MDT walking speed more than sham group. Furthermore, bilateral tDCS (p = 0.012) and cathodal tDCS (p = 0.040) increased the silent period (SP) more than the anodal and sham group. Thus, one-session of bilateral and cathodal tDCS improved dual task walking performance paralleled with increasing contralesional corticomotor inhibition in chronic stroke.Conclusions: Our results indicate that one-session of bilateral and cathodal tDCS increased contralesional corticomotor inhibition and improved dual task gait performance in chronic stroke.Trial Registration: Thai Clinical Trials Registry (TCTR20180116001). Registered prospectively on 16th Jan, 2018 at http://www.thaiclinicaltrials.org . [ABSTRACT FROM AUTHOR]

Cane-assisted individuals with chronic stroke may perform with an abnormal gait pattern. One of the important factors of gait training for cane-assisted individuals is inducing improvement in lower limb muscle activity of the paretic side. Non-elastic taping on the hip may be used as an adjunct therapy for improving gait. The objective of this study was to investigate effects of non-elastic hip taping combined with exercise on gait in cane-assisted individuals with chronic stroke. This study is a single-blinded, randomized controlled trial. A total of 21 cane-assisted ambulators with chronic stroke were enrolled. Participants in both groups received a therapeutic exercise program, with the experimental and control groups having adjunct non-elastic taping and sham taping on the hip, respectively. The gait, Berg Balance Scale, 6-min walk test, and Fall Efficacy Scale–International were measured at pre-intervention, post-intervention, and 1-month follow-up. The experimental group resulted in significantly better performance in double-support time compared with the control group. Furthermore, the experimental group showed a significant improvement in double-support time and spatial symmetry at post-intervention and 1-month follow-up compared with pre-intervention. This study demonstrated that non-elastic hip taping combined with exercise could improve gait stability in cane-assisted ambulators. Non-elastic hip taping would be a useful adjunct to rehabilitation strategies for individuals with chronic stroke. [ABSTRACT FROM AUTHOR]

Stroke is a leading cause of adult disability. In our previous study, transplantation of human umbilical mesenchymal stem cells (HUMSCs) in Wharton's jelly in the acute phase of ischemic stroke promotes recovery in rats. Unfortunately, there is no cure for chronic stroke. Patients with chronic stroke can only be treated with rehabilitation or supportive interventions. This study aimed to investigate the potential of xenograft of HUMSCs for treating chronic stroke in rats. Rats were subjected to 90 min middle cerebral artery occlusion and then reperfusion to mimic ischemic cerebral stroke. On day 14 following stroke, HUMSCs were transplanted into the damaged cerebral cortex. The motor function in rats of the Stroke + HUMSCs group exhibited significant improvement compared to that of the Stroke + Saline group, and the trend persisted until day 56 post stroke. The cerebral cortex changes were tracked using magnetic resonance imaging, showing that cerebral atrophy was found starting on day 7 and was reduced significantly in rats receiving HUMSCs compared to that in the Stroke + Saline group from day 21 to day 56. HUMSCs were found to be existed in the rats' cerebral cortex on day 56, with signs of migration. The grafted HUMSCs did not differentiate into neurons or astrocytes and may release cytokines to improve neuroprotection, decrease inflammation and increase angiogenesis. Our results demonstrate that xeno-transplantation of HUMSCs has therapeutic benefits for chronic ischemic stroke. Most importantly, patients do not need to use their own HUMSCs, which is a gospel thing for clinical patients. [ABSTRACT FROM AUTHOR]

Objective: To explore the optimal frequency of whole-body vibration training for improving the balance and physical performance in older people with chronic stroke. Design: a single-blind randomized controlled trial. Setting: Two rehabilitation units in the Wuhan Brain Hospital in China. Participants: A total of 78 seniors with chronic stroke. Interventions: Low-frequency group (13 Hz), high-frequency group (26 Hz), and zero-frequency group (Standing on the vibration platform with 0 Hz) for 10 sessions of side-alternating WBV training. Main measures: The timed-up-and-go test, five-repetition sit-to-stand test, 10-metre walking test, and Berg balance scale were assessed pre- and post-intervention. Results: Significant time × group interaction effects in five-repetition sit-to-stand test (p = 0.014) and timed-up-and-go test at self-preferred speed (p = 0.028) were observed. The high-frequency group outperformed the zero-frequency group in both five-repetition sit-to-stand test (p = 0.039) and timed-up-and-go test at self-preferred speed (p = 0.024) after 10-sessions training. The low-frequency group displayed only a significant improvement in five-repetition sit-to-stand test after training (p = 0.028). No significant within- or between-group changes were observed in the Berg balance scale and walking speed (p > 0.05). No significant group-difference were found between low-frequency and high-frequency groups. No adverse events were reported during study. Conclusions: Compared with 13 Hz, 26 Hz had no more benefits on balance and physical performance in older people with chronic stroke. [ABSTRACT FROM AUTHOR]

Background: Bipedal static posturography is widely used to assess postural control. However, standardized methods and evidence on the influence of footwear on balance in comparison to barefoot stance is sparse.Research Questions: Is bipedal static posturography applied in a standardized way with respect to demographics and the experimental set-up (systematic review)? Does habitual footwear influence postural control in comparison to barefoot condition during bipedal static posturography in adult patients and healthy subjects (meta-analysis)?Methods: For this systematic review and meta-analysis, a comprehensive follow-up literature search was conducted from March 2009 until January 2020 according to the PRISMA guidelines. Original, research articles reporting on bipedal, unsupported, static posturography in adults (≥18 years) were included according to inclusion criteria (age, sex, height, weight, duration, repetitions, visual/foot condition, sampling frequency). Studies comparing habitual footwear with barefoot condition during bipedal static posturography were included for the meta-analysis. Center of pressure parameters (sway velocity, range, root mean square, paths lengths) with subjects having eyes closed (EC) or open (EO) were analyzed using random effects models.Results: For this systematic review and meta-analysis, 207 and eight out of 5189 studies with 12'341 and 156 subjects, respectively, were eligible. Most studies (89%) reported barefoot, 5% shod, and 6% barefoot and shod measurements. Less than half of studies (44%) included patients of which the minority (13%) suffered from neurological disease. Sway velocity in the anterior-posterior direction was higher in habitual shoes compared to barefoot with EC (SMD: 1.08; 95% CI: 0.68-1.48; p < 0.01; I2 = 0%), with EO (SMD: 0.68; 95% CI: 0.11-1.26; p = 0.02; I2 = 1%), and in the medio-lateral direction with EC (SMD: 1.30; 95% CI: 0.76-1.85, p < 0.01; I2 = 37%).Significance: Methodical heterogeneity of bipedal static posturography hampers studies' comparability. Thus, we provide a standardized approach to increase knowledge whether habitual footwear decrease postural control in comparison to barefoot stance. [ABSTRACT FROM AUTHOR]

• Motor-cognitive intervention concepts should be classified as sequential or simultaneous and as competing or incorporated. • Motor-cognitive trainings are superior to single physical training in improving gait speed and walking endurance in chronic stroke. • Of different motor-cognitive intervention concepts, simultaneous-incorporated exergames seem to be the most promising type for improving gait speed and potentially other functions. • Whether motor-cognitive trainings can improve cognitive functions in chronic stroke remains unclear, thus future studies are warranted. Motor-cognitive intervention concepts are promising to counteract residual gait and cognitive impairments in chronic stroke. There is, however, considerable variation in motor-cognitive intervention types, which may lead to different effects. This systematic review strived to summarize and compare the effects of different motor-cognitive intervention concepts on gait and cognitive functions in chronic stroke. The systematic search identified twenty-nine articles, which were allocated to three types of motor-cognitive training concepts; SEQUENTIAL, SIMULTANEOUS-ADDITIONAL, and SIMULTANEOUS-INCORPORATED. Random-effects meta-analyses revealed that motor-cognitive interventions may be better than non-combined training approaches for improving gait function in chronic stroke (e.g. gait speed: g = 0.43, 95 % CI [0.22, 0.64], p < 0.0001). SIMULTANEOUS-INCORPORATED motor-cognitive training seems the most promising concept. As very few articles measured both, spatiotemporal gait parameters and cognitive outcomes, future studies are warranted to investigate the effects of motor-cognitive intervention concepts on gait control and cognitive functions in chronic stroke. [ABSTRACT FROM AUTHOR]

In neurotypical individuals, arm choice in reaching movements depends on expected biomechanical effort, expected success, and a handedness bias. Following a stroke, does arm choice change to account for the decreased motor performance, or does it follow a preinjury habitual preference pattern? Participants with mild-to-moderate chronic stroke who were right-handed before stroke performed reaching movements in both spontaneous and forced-choice blocks, under no-time, medium-time, and fast-time constraint conditions designed to modulate reaching success. Mixed-effects logistic regression models of arm choice revealed that expected effort predicted choices. However, expected success only strongly predicted choice in left-hemiparetic individuals. In addition, reaction times decreased in left-hemiparetic individuals between the no-time and the fast-time constraint conditions but showed no changes in right-hemiparetic individuals. Finally, arm choice in the no-time constraint condition correlated with a clinical measure of spontaneous arm use for right-, but not for left-hemiparetic individuals. Our results are consistent with the view that right-hemiparetic individuals show a habitual pattern of arm choice for reaching movements relatively independent of failures. In contrast, left-hemiparetic individuals appear to choose their paretic left arm more optimally: that is, if a movement with the paretic arm is predicted to be not successful in the upcoming movement, the nonparetic right arm is chosen instead. NEW & NOTEWORTHY Although we are seldom aware of it, we constantly make decisions to use one arm or the other in daily activities. Here, we studied whether these decisions change following stroke. Our results show that effort, success, and side of lesion determine arm choice in a reaching task: whereas left-paretic individuals modified their arm choice in response to failures in reaching the target, right-paretic individuals showed a pattern of choice independent of failures. [ABSTRACT FROM AUTHOR]

After completing formal stroke rehabilitation programs, most patients do not achieve full upper limb motor function recovery. Music-supported Therapy (MST) can improve motor functionality post stroke through musical training. We designed a home-based enriched Music-supported Therapy (eMST) program to provide patients with chronic stroke the opportunity of continuing rehabilitation by themselves. We developed an app to conduct the eMST sessions at home with a MIDI-piano and percussion instruments. Here, we tested the feasibility of the eMST intervention using the novel app. This is a pilot study where five patients with chronic stroke underwent a 10-week intervention of 3 sessions per week. Patients answered feasibility questionnaires throughout the intervention to modify aspects of the rehabilitation program and the app according to their feedback. Upper limb motor functions were evaluated pre- and post-intervention as well as speed and force tapping during daily piano performance. Patients clinically improved in upper limb motor function achieving the Minimal Detectable Change (MDC) or Minimal Clinically Important Difference (MCID) in most of motor tests. The app received high usability ratings post-intervention. The eMST program is a feasible intervention for patients with chronic stroke and its efficacy should be assessed in a clinical trial. [ABSTRACT FROM AUTHOR]

Brain machine interfaces (BMIs) used for movement restoration primarily rely on studies of motor decoding. It has been proved that local field potentials (LFPs) from primary motor cortex and premotor cortex of normal rodents could be used for decoding motor signals. However, few studies have explored the decoding performance of these brain areas under motor cortex damage. In this work, we focus on force decoding performance of LFPs spectrum from both ipsilesional caudal forelimb area (CFA) and rostral forelimb area (RFA) of rodents with ischemia over CFA. After three months of ischemia induced by photothrombosis over CFA, the power of high-frequency bands (>120 Hz) from both CFA and RFA can decode force signals by Kalman filters. The fair performance of CFA indicates motor reorganization over penumbra. Further exploration of RFA decoding ability proves that at least four electrodes of RFA should be used on decoding and electrodes far from CFA of stroke rats could achieve almost as good results as those close to CFA of normal rats, which indicates the motor remapping. Experimental results show the long-term stability of PM LFPs decoding performance of stroke rats as the trained Kalman model could be used to accurately decode force some days later which provides a possibility for online decoding system. In conclusion, our work shows that even under CFA ischemia, high-frequency power of LFPs from RFA is still able to accurately decode force signals and has long stability, which provides the possibility of BMIs for motor function reconstruction of chronic stroke patients. [ABSTRACT FROM AUTHOR]

Introduction: By 6 months following a stroke, approximately 65% of stroke survivors cannot incorporate into daily activities, resulting completely dependent. The aim of this study is to assess the overall outcome in psychological and physical well-being, increase in residual abilities, reintegration and social inclusion for people with chronic disabilities resulting from stroke, after home rehabilitation.Materials and Methods: We assessed the functional outcome of a group of 600 patients with disability related to several pathological conditions and undergoing home rehabilitation therapy (twice a week for 40 sessions per year) as granted by the Public Health. We evaluated the outcome with Barthel and Functional Independence Measure (FIM) scales. Furthermore, in a group of 73 persons with chronic stroke we also carried out an overall evaluation, by using specific rating scales (FIM, Stroke Impact Scale, Motricity Index, Tinetti Balance Scale, 10-m Walking Test, 6-min Walking Test, 5 Repetitions Sit-to-Stand Test, and Hamilton Depression Scale) after 120 days (114 ± 6) from the end of the home rehabilitation program.Results: The results highlighted a statistically significant improvement between T0 and T1 and a significant worsening between T1 and T2 (follow-up at 3 months). Hamilton Depression Scale is the only parameter that significantly improves both at the time T1 and T2.Conclusions: Territorial rehabilitation system should consider some fundamental aspects: centrality of the person and the individual health project; identification of specific and personalized rehabilitation plan and prognosis based on the results of a follow-up; ultra-specialization of interventions; multidisciplinary team; highlight of the emerging needs; and coordination of the different care pathways. [ABSTRACT FROM AUTHOR]

Key points: The corticoreticulospinal tract (CReST) is a descending motor pathway that reorganizes after corticospinal tract (CST) injury in animals.In humans, the pattern of CReST innervation to upper limb muscles has not been carefully examined in healthy individuals or individuals with CST injury.In the present study, we assessed CReST projections to an arm and hand muscle on the same side of the body in healthy and chronic stoke subjects using transcranial magnetic stimulation.We show that CReST connection strength to the muscles differs between healthy and stroke subjects, with stronger connections to the hand than arm in healthy subjects, and stronger connections to the arm than hand in stroke subjects.These results help us better understand CReST innervation patterns in the upper limb, and may point to its role in normal motor function and motor recovery in humans. The corticoreticulospinal tract (CReST) is a major descending motor pathway in many animals, but little is known about its innervation patterns in proximal and distal upper extremity muscles in humans. The contralesional CReST furthermore reorganizes after corticospinal tract (CST) injury in animals, but it is less clear whether CReST innervation changes after stroke in humans. We thus examined CReST functional connectivity, connection strength, and modulation in an arm and hand muscle of healthy (n = 15) and chronic stroke (n = 16) subjects. We delivered transcranial magnetic stimulation to the contralesional hemisphere (assigned in healthy subjects) to elicit ipsilateral motor evoked potentials (iMEPs) from the paretic biceps (BIC) and first dorsal interosseous (FDI) muscle. We operationalized CReST functional connectivity as iMEP presence/absence, CReST projection strength as iMEP size and CReST modulation as change in iMEP size by head rotation. We found comparable CReST functional connectivity to the BICs and FDIs in both subject groups. However, the pattern of CReST connection strength to the muscles diverged between groups, with stronger connections to FDIs than BICs in healthy subjects and stronger connections to BICs than FDIs in stroke subjects. Head rotation modulated only FDI iMEPs of healthy subjects. Our findings indicate that the healthy CReST does not have a proximal innervation bias, and its strong FDI connections may have functional relevance to finger individuation. The reversed CReST innervation pattern in stroke subjects confirms its reorganization after CST injury, and its strong BIC connections may indicate upregulation for particular upper extremity muscles or their functional actions. Key points: The corticoreticulospinal tract (CReST) is a descending motor pathway that reorganizes after corticospinal tract (CST) injury in animals.In humans, the pattern of CReST innervation to upper limb muscles has not been carefully examined in healthy individuals or individuals with CST injury.In the present study, we assessed CReST projections to an arm and hand muscle on the same side of the body in healthy and chronic stoke subjects using transcranial magnetic stimulation.We show that CReST connection strength to the muscles differs between healthy and stroke subjects, with stronger connections to the hand than arm in healthy subjects, and stronger connections to the arm than hand in stroke subjects.These results help us better understand CReST innervation patterns in the upper limb, and may point to its role in normal motor function and motor recovery in humans. [ABSTRACT FROM AUTHOR]

Background: Stroke is one of the main causes of impairment affecting daily activities and quality of life. There is a growing effort to potentiate the recovery of functional gait and to enable stroke patients to walk independently. Aim: To estimate the effects of dual-site transcranial direct current stimulation (dstDCS) on gait recovery in chronic stroke patients provided with robot-aided gait training (RAGT). Methods: Thirty-seven patients were included in this retrospective clinical study. Nine patients were provided with dstDCS during the first 10 min of RAGT by using Lokomat®Pro (on-RAGT), 15 patients immediately after RAGT (post-RAGT), and 13 patients immediately before RAGT (pre-RAGT). Results: Each group improved over time concerning disability burden and lower limb strength. on-RAGT and post-RAGT experienced better improvement in balance (p < 0.001) and, moderately, gait endurance (p = 0.04) as compared to pre-RAGT. Furthermore, all treatments decreased the facilitation of the unaffected hemisphere (p < 0.001) and the inhibition of the affected hemisphere (p < 0.001). The duration of such aftereffects was found to be greater for post-RAGT. Discussion and conclusion: This is the first trial with dstDCS coupled with RAGT in chronic stroke patients with gait impairment. When timely coupled with RAGT, dstDCS may be considered an effective tool for the recovery of lower limb function in patients with first unilateral stroke in the chronic phase. Moreover, our data suggest the ductility of dstDCS concerning RAGT timing, thus making this intervention suitable in a neurorehabilitation setting and well adaptable to patients' needs. [ABSTRACT FROM AUTHOR]

Post-stroke cognitive and linguistic impairments are debilitating conditions, with limited therapeutic options. Domain-general brain networks play an important role in stroke recovery and characterizing their residual function with functional MRI has the potential to yield biomarkers capable of guiding patient-specific rehabilitation. However, this is challenging as such detailed characterization requires testing patients on multitudes of cognitive tasks in the scanner, rendering experimental sessions unfeasibly lengthy. Thus, the current status quo in clinical neuroimaging research involves testing patients on a very limited number of tasks, in the hope that it will reveal a useful neuroimaging biomarker for the whole cohort. Given the great heterogeneity among stroke patients and the volume of possible tasks this approach is unsustainable. Advancing task-based functional MRI biomarker discovery requires a paradigm shift in order to be able to swiftly characterize residual network activity in individual patients using a diverse range of cognitive tasks. Here, we overcome this problem by leveraging neuroadaptive Bayesian optimization, an approach combining real-time functional MRI with machine-learning, by intelligently searching across many tasks, this approach rapidly maps out patient-specific profiles of residual domain-general network function. We used this technique in a cross-sectional study with 11 left-hemispheric stroke patients with chronic aphasia (four female, age ± standard deviation: 59 ± 10.9 years) and 14 healthy, age-matched control subjects (eight female, age ± standard deviation: 55.6 ± 6.8 years). To assess intra-subject reliability of the functional profiles obtained, we conducted two independent runs per subject, for which the algorithm was entirely reinitialized. Our results demonstrate that this technique is both feasible and robust, yielding reliable patient-specific functional profiles. Moreover, we show that group-level results are not representative of patient-specific results. Whereas controls have highly similar profiles, patients show idiosyncratic profiles of network abnormalities that are associated with behavioural performance. In summary, our study highlights the importance of moving beyond traditional 'one-size-fits-all' approaches where patients are treated as one group and single tasks are used. Our approach can be extended to diverse brain networks and combined with brain stimulation or other therapeutics, thereby opening new avenues for precision medicine targeting a diverse range of neurological and psychiatric conditions. [ABSTRACT FROM AUTHOR]

Various neurological disorders, such as stroke and Alzheimer's disease (AD), involve neuroinflammatory responses. The advent of the gut‐brain axis enhances our understanding of neurological disease progression and secondary cell death. Gut microbiomes, especially those associated with inflammation, may reflect the dysbiosis of both the brain and the gut, opening the possibility to utilize inflammatory microbiomes as biomarkers and therapeutic targets. The gut‐brain axis may serve as a contributing factor to disease pathology and offer innovative approaches in cell‐based regenerative medicine for the treatment of neurological diseases. In reviewing the pathogenesis of stroke and AD, we also discuss the effects of gut microbiota on cognitive decline and brain pathology. Although the underlying mechanism of primary cell death from either disease is clearly distinct, both may be linked to gut‐microbial dysfunction as a consequential aberration that is unique to each disease. Targeting peripheral cell death pathways that exacerbate disease symptoms, such as those arising from the gut, coupled with conventional central therapeutic approach, may improve stroke and AD outcomes. [ABSTRACT FROM AUTHOR]

The disappointing results in bench-to-bedside translation of neuroprotective strategies caused a certain shift in stroke research towards enhancing the endogenous recovery potential of the brain. One reason for this focus on recovery is the much wider time window for therapeutic interventions which is open for at least several months. Since recently two large clinical studies using d-amphetamine or fluoxetine, respectively, to enhance post-stroke neurological outcome failed again it is a good time for a critical reflection on principles and requirements for stroke recovery science. In principal, stroke recovery science deals with all events from the molecular up to the functional and behavioral level occurring after brain ischemia eventually ending up with any measurable improvement of various clinical parameters. A detailed knowledge of the spontaneously occurring post-ischemic regeneration processes is the indispensable prerequisite for any therapeutic approaches aiming to modify these responses to enhance post-stroke recovery. This review will briefly illuminate the molecular mechanisms of post-ischemic regeneration and the principle possibilities to foster post-stroke recovery. In this context, recent translational approaches are analyzed. Finally, the principal and specific requirements and pitfalls in stroke recovery research as well as potential explanations for translational failures will be discussed. [ABSTRACT FROM AUTHOR]