The Efficacy of Lower Extremity Mirror Therapy for Improving Balance, Gait, and Motor Function Poststroke: A Systematic Review and Meta-Analysis

Robotic mirror therapy for stroke rehabilitation through virtual activities of daily living

Mirror therapy is a standard technique of rehabilitation for recovering motor and vision abilities of stroke patients, especially in the case of asymmetric limb function. To enhance traditional mirror therapy, robotic mirror therapy (RMT) has been proposed over the past decade, allowing for assisted bimanual coordination of paretic (affected) and contralateral (healthy) limbs. However, state-of-the-art RMT platforms predominantly target mirrored motions of trajectories, largely limited to 2-D motions. In this paper, an RMT platform is proposed, which can facilitate the patient to practice virtual activities of daily living (ADL) and thus enhance their independence. Two similar (but mirrored) 3D virtual environments are created in which the patients operate robots with both their limbs to complete ADL (such as writing and eating) with the assistance of the therapist. The recovery level of the patient is continuously assessed by monitoring their ability to track assigned trajectories. The patient's robots are programmed to assist the patient in following these trajectories based on this recovery level. In this paper, the framework to dynamically monitor recovery level and accordingly provide assistance is developed along with the nonlinear controller design to ensure position tracking, force control, and stability. Proof-of-concept studies are conducted with both 3D trajectory tracking and ADL. The results demonstrate the potential use of the proposed system to enhance the recovery of the patients.

Neural basis of lower-limb visual feedback therapy: an EEG study in healthy subjects

BACKGROUND

Video-feedback observational therapy (VOT) is an intensive rehabilitation technique based on movement repetition and visualization that has shown benefits for motor rehabilitation of the upper and lower limbs. Despite an increase in recent literature on the neurophysiological effects of VOT in the upper limb, there is little knowledge about the cortical effects of visual feedback therapies when applied to the lower limbs. The aim of our study was to better understand the neurophysiological effects of VOT. Thus, we identified and compared the EEG biomarkers of healthy subjects undergoing lower limb VOT during three tasks: passive observation, observation and motor imagery, observation and motor execution.

METHODS

We recruited 38 healthy volunteers and monitored their EEG activity while they performed a right ankle dorsiflexion task in the VOT. Three graded motor tasks associated with action observation were tested: action observation alone (O), motor imagery with action observation (OI), and motor execution synchronized with action observation (OM). The alpha and beta event-related desynchronization (ERD) and event-related synchronization (or beta rebound, ERS) rhythms were used as biomarkers of cortical activation and compared between conditions with a permutation test. Changes in connectivity during the task were computed with phase locking value (PLV).

RESULTS

During the task, in the alpha band, the ERD was comparable between O and OI activities across the precentral, central and parietal electrodes. OM involved the same regions but had greater ERD over the central electrodes. In the beta band, there was a gradation of ERD intensity in O, OI and OM over central electrodes. After the task, the ERS changes were weak during the O task but were strong during the OI and OM (Cz) tasks, with no differences between OI and OM.

CONCLUSION

Alpha band ERD results demonstrated the recruitment of mirror neurons during lower limb VOT due to visual feedback. Beta band ERD reflects strong recruitment of the sensorimotor cortex evoked by motor imagery and action execution. These results also emphasize the need for an active motor task, either motor imagery or motor execution task during VOT, to elicit a post-task ERS, which is absent during passive observation. Trial Registration NCT05743647.

Maximum tolerable daily dose of mirror movement therapy ankle exercises after stroke: an early phase dose screening study

BACKGROUND

Mirror movement therapy may reduce lower limb motor impairment after stroke. The dose is unknown.

OBJECTIVE

identify the maximum tolerable dose a day (MTD) of lower limb mirror movement therapy DESIGN: 3 + 3 cohort rule-based, dose escalation/de-escalation study. After undertaking baseline measures participants performed mirror movement therapy for 14 consecutive days. Participants then undertook outcome measures. Cohort One trained for 15 minutes daily. Subsequent cohorts exercised at a dose set according to pre-set rules and the modified Fibonacci sequence. The study stopped when the difference between set doses for consecutive cohorts was 10% or less.

SETTING

Participants' homes (intervention) and a movement analysis laboratory (measures).

PARTICIPANTS

Adults discharged from statutory stroke rehabilitation services.

INTERVENTION

Mirror movement therapy ankle exercises.

OUTCOME MEASURES

Motricity Index (primary) and bilateral time symmetry from movement onset to peak activation of Tibialis Anterior muscles during standardised sit-to-stand (secondary).

RESULTS

Five cohorts of three participants were included (n = 15). Mean (SD) age and time after stroke were 61 (9) years and 35 (42) months respectively. Set daily doses for the five cohorts were: 15, 30, 50, 40 then 35 minutes. The set dose for a subsequent cohort (six) would have been 38 minutes thus the difference from cohort five would have been three minutes i.e., 9% different. Therefore, the study stopped CONCLUSION: The identified MTD of lower limb mirror therapy was 35 minutes daily when frequency was set at seven days a week and duration as two weeks.

CLINICAL TRIAL REGISTRATION NUMBER

NCT04339803 (ClinicalTrials.gov) CONTRIBUTION OF THE PAPER: This early phase study found that the maximum tolerable dose per day (MTD) of mirror movement therapy ankle exercises was 35 minutes when frequency was set at seven days a week and duration as two weeks. The optimal therapeutic dose will therefore be somewhere in the range of 15 (starting dose) to 35 minutes per day. Further dose articulation studies are required to identify the optimal therapeutic dose before use of findings in clinical practice. This study is the first step in that research process.

Utilization of Mirror Visual Feedback for Upper Limb Function in Poststroke Patients: A Systematic Review and Meta-Analysis

Mirror visual feedback (MVF), a noninvasive treatment method, is attracting attention as a possibility to promote the recovery of upper limb function in stroke patients. However, the cognitive effects of this therapy have received limited attention in the existing literature. To address this gap, we conducted a systematic review and meta-analysis to investigate the relationship between upper limb function and cognition in stroke patients and to evaluate the effect of MVF on improving upper limb function. A comprehensive search was performed on the Embase, MEDLINE, and PubMed databases to identify original articles and clinical studies published between 2013 and 2022. Qualitative analysis was performed using the Cochrane Risk of Bias tool, and in the quantitative analysis, a random-effects model was used as the effect model, and standard mean difference (SMD) was used as the effect measure. Eight studies that met the inclusion criteria were entered in the analysis. Data extraction included an assessment tool for upper extremity function. Results of the quantitative analysis demonstrate that MVF was effective in improving upper extremity function in stroke patients (SMD = 0.94, 95% CI 0.69 to 1.20). In conclusion, this systematic review and meta-analysis provides evidence supporting the effectiveness of MVF in improving upper limb function in stroke patients. However, further studies are needed to investigate the cognitive effects of MVF and elucidate the underlying mechanisms.

Effects of mirror therapy on spasticity and sensory impairment after stroke: Systematic review and meta-analysis

OBJECTIVE

To review and synthesize existing evidence on the effectiveness of mirror therapy (MT) compared to active exercise-based interventions (ie, cross-training and conventional exercise) for reducing spasticity and sensory impairment in stroke survivors. TYPE: Systematic Review and Metanalysis.

LITERATURE SURVEY

Pubmed/MEDLINE, Cochrane, Embase, CINAHL, and Physiotherapy Evidence Database (PEDro), were searched.

METHODOLOGY

Randomized controlled trials (RCTs) that investigated MT effectiveness in improving spasticity and sensory impairment in stroke survivors compared to a control group.

SYNTHESIS

Fifteen RCTs (653 volunteers) were included. Spasticity improvements achieved with MT were similar to those obtained with cross-training (standard mean difference [SMD]: 0.12, 95% confidence interval [CI]: -0.43 to 0.68). In addition, when further combined with conventional exercise, spasticity improved similarly in both groups (SMD: 0.10, 95% CI: -0.16, 0.36). Lastly, when MT plus exercise was compared to exercise alone, spasticity decreased in both groups (SMD: 0.16, 95% CI: -0.16 to 0.48). Nevertheless, none of the Interventions seem effective on sensory impairment (SMD: 0.27, 95% CI: -0.28 to 0.81).

CONCLUSIONS

MT is equally effective as other exercise therapies, such as cross-training and conventional exercise, for improving spasticity in stroke survivors, whereas none of the explored interventions yielded beneficial effects on sensory impairment. Further well-designed RCTs are needed to confirm the results.

Occupational Therapy Practice Guidelines for Adults With Stroke

IMPORTANCE

Stroke is a leading cause of disability. Occupational therapy practitioners ensure maximum participation and performance in valued occupations for stroke survivors and their caregivers.

OBJECTIVE

These Practice Guidelines are meant to support occupational therapy practitioners' clinical decision making when working with people after stroke and their caregivers.

METHOD

Clinical recommendations were reviewed from three systematic review questions on interventions to improve performance and participation in daily activities and occupations and from one question on maintaining the caregiving role for caregivers of people after stroke.

RESULTS

The systematic reviews included 168 studies, 24 Level 1a, 90 Level 1b, and 54 Level 2b. These studies were used as the basis for the clinical recommendations in these Practice Guidelines and have strong or moderate supporting evidence.

CONCLUSIONS AND RECOMMENDATIONS

Interventions with strong strength of evidence for improving performance in activities of daily living and functional mobility include mirror therapy, task-oriented training, mental imagery, balance training, self-management strategies, and a multidisciplinary three-stages-of-care rehabilitation program. Constraint-induced therapy has strong strength of evidence for improving performance of instrumental activities of daily living. Moderate strength of evidence supported cognitive-behavioral therapy (CBT) to address balance self-efficacy, long-term group intervention to improve mobility in the community, and a wearable upper extremity sensory device paired with training games in inpatient rehabilitation to improve social participation. Practitioners should incorporate problem-solving therapy in combination with CBT or with education and a family support organizer program. What This Article Adds: These Practice Guidelines provide a summary of strong and moderate evidence for effective interventions for people with stroke and for their caregivers.

Correlation between Selective Motor Control of the Lower Extremities and Balance in Spastic Hemiplegic Cerebral Palsy: a randomized controlled trial

BACKGROUND

Children with cerebral palsy (CP) have motor deficits caused by spasticity, weakness, contractures, diminished selective motor control (SMC), and poor balance. The purpose of the current study was to evaluate the influence of mirror feedback on lower extremity selective motor control and balance in children with hemiplegic cerebral palsy. Understanding the relationship between SMC and balance will help children with hemiplegic CP receive more appropriate therapies.

METHODS

Forty-seven children of both sexes diagnosed with hemiplegic CP participated in the study. Group1 (Gr1 - control group) received conventional physical therapy training while group 2 (Gr2 - intervention group) received conventional physical therapy training in addition to bilateral lower extremity mirror therapy (MT). The primary outcome measure used was Selective Control Assessment of Lower Extremity scale (SCALE), while the secondary outcome measure was the Pediatric Balance Scale (PBS).

RESULTS

There were significant differences in Selective Control Assessment of Lower Extremity Scale (SCALE) and Pediatric Balance Scale (PBS) between both groups in favor of Gr2. After treatment, both groups improved significantly, yet Gr2 outperformed Gr1 by a large margin.

CONCLUSION

Mirror therapy may be a useful addition to home-based motor interventions for children with hemiplegic CP due to its relative simplicity, low cost, and high patient adherence. Additionally, it may help children improve their selective motor skills and balance.

TRIAL REGISTRATION

Current Controlled Trials using African Clinical Trials Registry website with ID number PACTR202105604636415 retrospectively registered on 21/01/202.

Re-evaluation of Mirror Visual Feedback Therapy for a Systematic Evaluation/Meta-analysis of Physical Function Re-education After Stroke

OBJECTIVE

The aim of the study is to re-evaluate the methodological quality and quality of evidence for a systematic evaluation/meta-analysis of the effect of mirror visual feedback therapy on physical function re-education after stroke.

METHODS

Systematic evaluations/meta-analyses of mirror visual feedback therapy on physical function re-education after stroke were searched in the China Knowledge Network database, Wanfang database, Vipers database, China Biomedical Literature database, PubMed, Web of Science, and Embase using a computer, and the search time frame was up to January 2022. Methodological quality and quality of evidence ratings of the included studies were determined using the AMSTAR2 scale and GRADE classification by two authors.

RESULTS

Seventeen publications were included. The evaluation with the AMSTAR2 scale showed that one study had an intermediate quality rating, five had a low-quality rating, and the remaining 11 were all very low quality. The GRADE scale showed 93 outcome indicators, of which 6 were intermediate, 23 were low grades, and the rest were very low grades, with low overall quality.

CONCLUSIONS

Mirror visual feedback therapy is efficacious for physical function re-education after stroke and promotes recovery from physical dysfunction, but the methodological quality and quality of evidence from the related systematic evaluations/meta-analyses are low.

Using Mirror Therapy to Optimize the Efficacy of Balance Programs for Older Adults With Poststroke Balance Impairment

PURPOSE

Poststroke rehabilitation is an inevitable element of the treatment for stroke survivors. This study aimed to investigate the effect of balance training with mirror therapy in older adults with poststroke balance impairment.

DESIGN/METHODS

The study adopted a two-arm randomized clinical trial and included 38 older adults with poststroke balance impairment. The intervention group received balance exercises with mirror therapy, whereas the control group received the same balance exercises without mirror therapy (a nonreflective plate was used instead). The patient outcome, the balance score, was measured using the Berg Balance Scale. Analysis of covariance was used for statistical analysis.

RESULTS

Results showed that balance exercises combined with mirror therapy were significantly more effective than balance exercises without mirror therapy in improving balance in the stroke survivors (p < .001).

CONCLUSION

Mirror therapy combined with regular balance exercises is an effective and practical method for enhancing balance in older adults suffering from balance impairment.

CLINICAL RELEVANCE

Balance training combined with containing mirror therapy may be included in the rehabilitation programs of older adults with poststroke balance impairment.

Emerging Limb Rehabilitation Therapy After Post-stroke Motor Recovery

Stroke, including hemorrhagic and ischemic stroke, refers to the blood supply disorder in the local brain tissue for various reasons (aneurysm, occlusion, etc.). It leads to regional brain circulation imbalance, neurological complications, limb motor dysfunction, aphasia, and depression. As the second-leading cause of death worldwide, stroke poses a significant threat to human life characterized by high mortality, disability, and recurrence. Therefore, the clinician has to care about the symptoms of stroke patients in the acute stage and formulate an effective postoperative rehabilitation plan to facilitate the recovery in patients. We summarize a novel application and update of the rehabilitation therapy in limb motor rehabilitation of stroke patients to provide a potential future stroke rehabilitation strategy.

Motor Imagery and Action Observation as Appropriate Strategies for Home-Based Rehabilitation: A Mini-Review Focusing on Improving Physical Function in Orthopedic Patients

Dynamic stability of the knee and weakness of the extensor muscles are considered to be the most important functional limitations after anterior cruciate ligament (ACL) injury, probably due to changes at the central (cortical and corticospinal) level of motor control rather than at the peripheral level. Despite general technological advances, fewer contraindicative surgical procedures, and extensive postoperative rehabilitation, up to 65% of patients fail to return to their preinjury level of sports, and only half were able to return to competitive sport. Later, it becomes clear that current rehabilitation after knee surgery is not sufficient to address the functional limitations after ACL reconstruction even years after surgery. Therefore, new therapeutic tools targeting the central neural system, i.e., the higher centers of motor control, should be investigated and integrated into current rehabilitation practice. To improve motor performance when overt movement cannot be fully performed (e.g., due to pain, impaired motor control, and/or joint immobilization), several techniques have been developed to increase physical and mental activation without the need to perform overt movements. Among the most popular cognitive techniques used to increase physical performance are motor imagery and action observation practices. This review, which examines the available evidence, presents the underlying mechanisms of the efficacy of cognitive interventions and provides guidelines for their use at home.

Development and Testing of a Portable Virtual Reality-Based Mirror Visual Feedback System with Behavioral Measures Monitoring

Virtual Reality (VR) is a technology that has been used to provide the Mirror Visual Feedback (MVF) illusion to patients with promising results. In the present work, the goal is to design, develop and test a portable VR-based MVF system that monitors behavioral information about the performance of a simple motor task. The developed application runs in a stand-alone VR system and allows the researcher to select the real and virtual hands used to perform the motor task. The system was evaluated with a group of twenty healthy volunteers (12 men and 8 women) with ages between 18 and 66 years. Participants had to repetitively perform a motor task in four different experimental conditions: two mirror conditions (performing real movements with the dominant and with the non-dominant hand) and two non-mirror conditions. A significant effect of the experimental condition on embodiment score (p < 0.001), response time (p < 0.001), performance time (p < 0.001), trajectory length (p < 0.004) and trajectory maximum horizontal deviation (p < 0.001) was observed. Furthermore, a significant effect of the experimental moment (initial, middle and final parts of the training) on the performance time was observed (p < 0.001). These results show that the monitored parameters provide relevant information to evaluate the participant’s task performance in different experimental conditions.

Immediate effect of adding mirror visual feedback to lateral weight-shifting training on the standing balance control of the unilateral spatial neglect model

[Purpose] This study aimed to clarify the immediate effect of adding mirror visual feedback to lateral weight-shifting training on the standing balance control of the left unilateral spatial neglect model. [Participants and Methods] We included 64 healthy participants to create left unilateral spatial neglect models and divided them into four subgroups. Each subgroup received opposite lateral weight-shifting training with or without mirror visual feedback. We then evaluated the static and dynamic standing balance by measuring the center of pressure point alterations in the medial-lateral and anterior-posterior planes. We further evaluated the center of pressure length and bilateral load ratio. [Results] The center of pressure was significantly stable upon performing the eyes-open static standing balance test in the left weight-shifting training subgroup with mirror visual feedback. When participants performed the left dynamic standing balance test, the center of pressure moved significantly rightward and became significantly stable in the right weight-shifting training subgroup with mirror visual feedback. The left load ratio significantly decreased in the right weight-shifting training of subgroups that either did or did not receive mirror visual feedback upon performing the left dynamic standing balance test. [Conclusion] We concluded that adding mirror visual feedback to lateral weight-shifting training affected some measurements of standing balance control of the left unilateral spatial neglect model.

Mirror Therapy for Lower-Extremity Hemiparesis: A Knowledge Translation Study Using an Educational Module to Change Physiotherapists' Perceptions

Purpose: Despite growing evidence that mirror therapy (MT) is effective for improving lower-extremity (LE) function in patients with stroke, it is not commonly used by physiotherapists. The purpose of this study was to determine whether change would occur in physiotherapists' knowledge of, confidence in performing, and willingness to use MT for LE stroke rehabilitation after participating in a 1-hour educational module. Method: A convenience sample of physiotherapists working in neurorehabilitation was recruited for a single-group quasi-experimental pre-post study. Participants attended a 1-hour educational module on MT. Therapists' perceptions of the use of MT were assessed by questionnaire before and after they participated in the module. A follow-up telephone survey was conducted after 3 months to determine how many participants had actually used MT in their practice. Results: Nine physiotherapists participated in this study. Statistically significant increases were found in their perceived knowledge of, confidence in, and willingness to use MT. At the 3-month follow-up, three participants had used MT with patients with LE hemiparesis. Conclusions: Therapists' knowledge of and attitudes toward MT for LE stroke rehabilitation changed favourably after participating in a 1-hour educational module. The module also led some therapists to make a change in practice at 3 months.

Lower Extremity Rehabilitation in Patients with Post-Stroke Sequelae through Virtual Reality Associated with Mirror Therapy

More innovative technologies are used worldwide in patient's rehabilitation after stroke, as it represents a significant cause of disability. The majority of the studies use a single type of therapy in therapeutic protocols. We aimed to identify if the association of virtual reality (VR) therapy and mirror therapy (MT) exercises have better outcomes in lower extremity rehabilitation in post-stroke patients compared to standard physiotherapy. Fifty-nine inpatients from 76 initially identified were included in the research. One experimental group (n = 31) received VR therapy and MT, while the control group (n = 28) received standard physiotherapy. Each group performed seventy minutes of therapy per day for ten days. Statistical analysis was performed with nonparametric tests. Wilcoxon Signed-Rank test showed that both groups registered significant differences between pre-and post-therapy clinical status for the range of motion and muscle strength (p < 0.001 and Cohen's d between 0.324 and 0.645). Motor Fugl Meyer Lower Extremity Assessment also suggested significant differences pre-and post-therapy for both groups (p < 0.05 and Cohen's d 0.254 for the control group and 0.685 for the experimental group). Mann-Whitney results suggested that VR and MT as a therapeutic intervention have better outcomes than standard physiotherapy in range of motion (p < 0.05, Cohen's d 0.693), muscle strength (p < 0.05, Cohen's d 0.924), lower extremity functionality (p < 0.05, Cohen's d 0.984) and postural balance (p < 0.05, Cohen's d 0.936). Our research suggests that VR therapy associated with MT may successfully substitute classic physiotherapy in lower extremity rehabilitation after stroke.

Effects of Robotic Neurorehabilitation on Body Representation in Individuals with Stroke: A Preliminary Study Focusing on an EEG-Based Approach

Patients with stroke can experience a drastic change in their body representation (BR), beyond the physical and psychological consequences of stroke itself. Noteworthy, the misperception of BR could affect patients' motor performance even more. Our study aimed at evaluating the usefulness of a robot-aided gait training (RAGT) equipped with augmented visuomotor feedback, expected to target BR (RAGT + VR) in improving lower limb sensorimotor function, gait performance (using Fugl-Meyer Assessment scale for lower extremities, FMA-LE), and BR (using the Body Esteem Scale-BES- and the Body Uneasiness Test-BUT), as compared to RAGT - VR. We also assessed the neurophysiologic basis putatively subtending the BR-based motor function recovery, using EEG recording during RAGT. Forty-five patients with stroke were enrolled in this study and randomized with a 1:2 ratio into either the RAGT + VR (n = 30) or the RAGT - VR (n = 15) group. The former group carried out rehabilitation training with the Lokomat©Pro; whereas, the latter used the Lokomat©Nanos. The rehabilitation protocol consisted of 40 one-hour training sessions. At the end of the training, the RAGT + VR improved in FMA-LE (p < 0.001) and BR (as per BES, (p < 0.001), and BUT, (p < 0.001)) more than the RAGT- did (p < 0.001). These differences in clinical outcomes were paralleled by a greater strengthening of visuomotor connectivity and corticomotor excitability (as detected at the EEG analyses) in the RAGT + VR than in the RAGT - VR (all comparisons p < 0.001), corresponding to an improved motor programming and execution in the former group.We may argue that BR recovery was important concerning functional motor improvement by its integration with the motor control system. This likely occurred through the activation of the Mirror Neuron System secondary to the visuomotor feedback provision, resembling virtual reality. Last, our data further confirm the important role of visuomotor feedback in post-stroke rehabilitation, which can achieve better patient-tailored improvement in functional gait by means of RAGT + VR targeting BR.

Assessment and rehabilitation interventions for central facial palsy in patients with acquired brain injury: a systematic review

Objectives: To do a systematic review covering assessments and interventions for central facial palsy (CFP) in patients with acquired brain injury.Methods: PubMed, Embase, Cinahl, PsycInfo, and Web of Science were screened until April 2019. Assessments were defined as clinical- and instrumental tools and rating scales. Interventions were defined as rehabilitation interventions alleviating CFP.Results: 690 articles were screened based on the title and abstract. Interrater agreement was 98.12%. Sixteen articles were included: six clinical trials and 10 observational studies. Assessment: Commonest scale for assessing CFP was the House-Brackmann facial nerve Grading System. Strain gauges for measuring lip and cheek strength were applied in five studies and neurophysiological methods of assessing motor neuron pathways were applied in three studies. Interventions: An oral screen for improving lip strength was reported in three studies. Other interventions reported were neuromuscular electrical stimulation, Castillo Morales therapy, mirror therapy, exercises with electromyography feedback, and acupuncture.Conclusions: Scales for assessing peripheral facial palsy were applied for assessing CFP. Based on neurophysiological differences in the manifestation of peripheral facial palsy and CFP, these scales should be validated in patients with CFP. More studies on interventions for CFP are required before conclusions may be drawn about their effectiveness.

The effects of lower extremity cross-training on gait and balance in stroke patients: a double-blinded randomized controlled trial

BACKGROUND

Cross-training is an indirect intervention to promote muscle activity on the affected side by applying resistance exercise to stronger parts of the body. Indirect interventions are useful for treating patients who have difficulty with direct interventions. Previous studies have focused on measuring increased muscle strength and muscle activity in healthy individuals.

AIM

This study aimed to investigate the effects of cross-training on gait and balance in hemiplegic patients when applied to the affected and unaffected lower extremities.

DESIGN

Double-blinded randomised controlled trial.

SETTING

In-patients attending the rehabilitation treatment room of a single center.

POPULATION

Fifty-two stroke patients were randomly allocated to a control group (N.=19), affected side cross-training group (N.=15), and unaffected side cross-training group (N.=18).

METHODS

Patients were administered general neurological physiotherapy for 30 mins, twice daily, 5 days/week for 4 weeks. The two intervention groups underwent 30 mins of cross-training instead of general neurological physiotherapy once daily, 3 days/week for 4 weeks (postintervention). For data analysis, one-way ANOVA for between-group comparisons and paired t-tests were performed for within-group comparisons between pre- and postintervention groups (significance level of 0.05).

RESULTS

In the Timed Up and Go Test (TUG), comparing pre- and postintervention, the control group showed no significant change (P>0.05), while the affected side and unaffected side cross-training groups showed significant improvements in function (P<0.05). In the 10-meter Walk Test, the control group showed no significant change (P>0.05), while the affected side and unaffected side cross-training groups showed significant increases in speed (P<0.05). In balance testing, the limits of stability showed a significantly increase in all three groups (P<0.05). There were no pre- or postintervention differences in gait or balance between the groups (P>0.05).

CONCLUSIONS

Gait and balance improved in hemiplegic stroke patients who participated in cross-training, regardless of the intervention applied to the affected or unaffected side.

CLINICAL REHABILITATION IMPACT

In clinical settings, for patients who experience difficulties with direct interventions on the affected side, we propose indirect interventions to improve gait and balance.

Pharmacological Interventions and Rehabilitation Approach for Enhancing Brain Self-repair and Stroke Recovery

Neuroplasticity is a natural process occurring in the brain for the entire life. Stroke is the leading cause of long term disability and a huge medical and financial problem throughout the world. Research conducted over the past decade focused mainly on neuroprotection in the acute phase of stroke while very little studies target the chronic stage. Recovery after stroke depends on the ability of our brain to reestablish the structural and functional organization of neurovascular networks. Combining adjuvant therapies and drugs may enhance the repair processes and restore impaired brain functions. Currently, there are some drugs and rehabilitative strategies that can facilitate brain repair and improve clinical effect even years after stroke onset. Moreover, some of the compounds such as citicoline, fluoxetine, niacin, levodopa, etc. are already in clinical use or are being trialed in clinical issues. Many studies are also testing cell therapies; in our review, we focused on studies where cells have been implemented at the early stage of stroke. Next, we discuss pharmaceutical interventions. In this section, we selected methods of cognitive, behavioral, and physical rehabilitation as well as adjuvant interventions for neuroprotection including noninvasive brain stimulation and extremely low-frequency electromagnetic field. The modern rehabilitation represents a new model of physical interventions with the limited therapeutic window up to six months after stroke. However, previous studies suggest that the time window for stroke recovery is much longer than previously thought. This review attempts to present the progress in neuroprotective strategies, both pharmacological and non-pharmacological that can stimulate the endogenous neuroplasticity in post-stroke patients.

Gait turning patterns in chronic ischemic stroke males and its relationship to recovery: A cross-sectional study

INTRODUCTION

Impaired turning patterns have been considered as 1 factor which potentially leads to disability in chronic stroke patients. Mobility comprises 80% of the chief disability, and would eventually lead to falls. Expanded Timed Up and Go (ETUG) is an effective mobility assessment method. It utilizes video recording to analyze the conventional Time Up and Go (TUG) Test components, which includes turning pattern analysis.

METHODS

Six healthy males without stroke history and 21 chronic ischemic stroke males (divided into subjects with or without the presence of flexor synergy pattern subgroups) capable of independent ambulation were recruited from Neurology and Medical Rehabilitation Department outpatient clinic. ETUG tests were recorded for each subject and were analyzed thoroughly using a computer program.

RESULTS

Timed Up and Go time was significantly different between the 3 groups (P = .001). As compared to control, and synergy absent group, median turning time was highest in chronic stroke patients with presence of flexor synergy by 2786 ms (P = .002), but was not significantly different in percentage ETUG (14%, P = .939). Further analysis revealed that Brunnstrom stage and number of steps taken for turning significantly affect TUG duration. Other factors such as hemiparetic side, or body height were not significantly associated.

DISCUSSION

The presence of flexor synergy would significantly affect turning time, this would then correlate to the disability of shifting body's center of gravity, as a part of the Stroke core set of International Classification of Functioning, Disability, and Health (ICF).Therefore, stroke patients need to have early ambulatory training regarding pivoting motion rather than solely focusing on straight walking. Instead of hemiparetic side, it is possible that overall turning time is affected by coordination and orientation capability, signifying the importance of cortical plasticity.

Rehabilitation for balance impairment in patients after stroke: a protocol of a systematic review and network meta-analysis

INTRODUCTION

Multiple rehabilitation therapies have been reported to be effective for poststroke balance impairment. However, the comparative effectiveness of these rehabilitation therapies is still unclear. Therefore, the aim of this study is to summarise evidence and identify the most effective rehabilitation therapy for poststroke balance impairment.

METHODS AND ANALYSIS

The following databases will be searched: China Biology Medicine, China National Knowledge Infrastructure, Wan Fang Data, the Chinese Science and Technology Periodical Database, Medline, Excerpt Medical Database (EMBASE), Web of Science, the Cochrane Library, from inception to June 2019. All randomised controlled trials that have used rehabilitation interventions to treat poststroke balance impairment will be included. The primary outcomes are the Berg Balance Scale, the Fugl-Meyer Assessment (balance), the Postural Assessment Scale for Stroke, as well as the function in sitting test, the Sitting Balance Scale, the Ottawa Sitting Scale, the Activities-specific Balance Confidence Scale, the Overall Balance Index and the Brunel Balance Assessment. The secondary outcomes include the Barthel Index, the Functional Ambulation Category Scale, fall rates, the Timed Up and Go test, the MOS 36-Item Short-Form Health Survey, and adverse events. To ensure that all relevant studies are included without personal bias, study selection, data extraction and quality assessment will be performed independently by two reviewers. Risk of bias will be assessed with the Cochrane risk of bias assessment tool. Review Manager V.5.3 software will be used to make bias risk diagram and pairwise meta-analysis, while network data synthesis will be performed using WinBUGS V.1.4.3 and R software.

ETHICS AND DISSEMINATION

Ethics approval is not required for systematic review and network meta-analysis. The results will be submitted to a peer review journal or at a conference.

TRIAL REGISTRATION NUMBER

PROSPERO (CRD 42018107441).

Rehabilitation interventions for improving balance following stroke: An overview of systematic reviews

Background

The aim of this study was to synthesize evidence from systematic reviews, to summarise the effects of rehabilitation interventions for improving balance in stroke survivors.

Methods

We conducted an overview of systematic reviews (SRs). We included Cochrane Systematic Reviews and non-Cochrane Systematic Reviews of randomized-controlled clinical trials and not-randomized clinical trials, in all types of stroke, comparing the effects of interventions, control interventions and no interventions on balance-related outcomes. We conducted a comprehensive search of electronic databases, from inception to December 2017. Data extracted included: number and type of participants, type of intervention, control intervention, method of assessing risk of bias of primary studies, balance outcome measures and results of statistical meta-analyses. Methodological quality of included reviews was assessed using AMSTAR 2. A narrative description of the characteristics of the SRs was provided and results of meta-analyses summarised with reference to their methodological quality.

Results

51 SRs (248 primary studies and 10,638 participants) met the inclusion criteria and were included in the overview. All participants were adults with stroke. A wide variety of different balance and postural control outcomes were included. 61% of SRs focussed on the effectiveness of physical therapy, 20% virtual reality, 6% electromechanical devices, 4% Tai-Chi, whole body vibration and circuit training intervention, and 2% cognitive rehabilitation. The methodology of 54% of SRs were judged to be of a “low or critically low” quality, 23% “moderate” quality and 22% “high” quality.

Conclusions

There are 51 SRs of evidence relating to the effectiveness of interventions to improve balance in people with stroke, but the majority of these are of poor methodological quality, limiting our ability to draw clear implications. Only 22% of these SRs were judged to be of high quality, highlighting the need to address important methodological issues within rehabilitation research.