Short-Term Effects of Whole-Body Vibration on Upper Extremity Function in Subjects With Poststroke Hemiplegia

Study Overview
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Brief Summary
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To investigate the effect of whole body vibration on upper limb motor function in hemiplegic patients with subacute stroke

Official Title
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Short-Term Effects of Whole-Body Vibration on Upper Extremity Function in Subjects With Poststroke Hemiplegia

Conditions
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Rehabilitation, Stroke, Hemiplegia, Physical Therapy Modalities, Electromyography, Upper Extremity, Recovery of Function, Vibration

Intervention / Treatment
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* Device: whole-body vibration training
* Other: conventional upper limb training


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: After unilateral stroke 1 to 6 months An ischemic or hemorrhagic poststroke hemiplegia No cognitive impairment Able to reach Brunnstrom stage II or above in the proximal and distal parts of the arms No excessive pain in the more affected upper extremity All subjects agreed to participate in the study after receiving explanations regarding the purpose and procedures of the experiment, and they signed an informed consent statement before participation Exclusion Criteria: Unsteadiness Accompanied by important organs (such as heart, liver, lung, kidney) dysfunction or malignant tumors Contraindications to general vibration training exist Combined with other diseases causing upper limb dysfunction

Ages Eligible for Study
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Minimum Age: 18 Years
Maximum Age: 70 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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No

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Treatment
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Triple


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Active Comparator: control group<br>Over a 3-week period, the subjects in the control group received 1 hour daily of conventional upper limb training 5 times a week,including compensatory techniques for activities of daily living, UE strength, therapist-guided techniques for facilitating normal UE movement patterns,and range of motion and traditional positioning | Other: conventional upper limb training<br>* compensatory techniques for activities of daily living, UE strength, therapist-guided techniques for facilitating normal UE movement patterns,and range of motion and traditional positioning<br>|
| Experimental: whole-body vibration group<br>Subjects in the whole-body vibration group received half an hour of daily conventional upper limb training, followed by whole-body vibration training for an additional half hour per day,5 days per week during a 3-week period | Device: whole-body vibration training<br>* The subjects were exposed to alternating vertical sinusoidal vibration using a Galileo tilting table system.The frequency of WBV ranged from 5 to 20 Hz, and the amplitude ranged from 1 to 6 mm.The subjects were kneeled on the ground, both shoulders flexed at 90 degrees, elbows slightly flexed, their trunk bent in this position and contacted on the platform board with their palms equidistant from the midpoint of the board<br>* Other names: vibration training;|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| upper-extremity Fugl-Meyer Scale | the assessment is scored by summing item ratings and reporting the aggregate score out of 66 points,with higher scores representing a greater UE motor ability summing item ratings and reporting the aggregate score out of 66 points, with higher scores representing a greater UE motor ability | After the 3-week intervention period | 
| Wolf Motor Function Test | participants were timed as they completed 15 activities that progressively involved more difficult arm movements and interactions with objects such as lifting a soda can, stacking checkers, and folding a towel. We reported the average time to perform the 15 items and the evaluator rated the normalcy of these items with a 6-point ordinal scale (range,0-5) using the functional ability scale. | After the 3-week intervention period | 
| Surface electromyography | Surface electromyography was used to measure the integrated EMG（IEMG）of the biceps and triceps during maximum isometric voluntary contraction（MIVC）of the affected elbow flexion and extension and then the co-contraction rate（CR）was calculated | After the 3-week intervention period | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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Whole-Body vibration, Stroke, Hemiplegia, upper extremity, Rehabilitation training, Muscular surface EMG, Vibration training