Effect of repetitive wrist extension with electromyography-triggered stimulation after stroke: a preliminary randomized controlled studyEffect of repetitive wrist extension with electromyography-triggered stimulation after stroke: a preliminary randomized controlled study
- Other Titles
- Effect of repetitive wrist extension with electromyography-triggered stimulation after stroke: a preliminary randomized controlled study
- Authors
- 이요섭; 차유리; 김영; 황수진; 정이정
- Issue Date
- 2017
- Publisher
- 물리치료재활과학회
- Keywords
- Electrical stimulation therapy; Electromyography; Stroke; Wrist
- Citation
- Physical Therapy Rehabilitation Science, v.6, no.3, pp.127 - 133
- Journal Title
- Physical Therapy Rehabilitation Science
- Volume
- 6
- Number
- 3
- Start Page
- 127
- End Page
- 133
- URI
- https://scholarworks.bwise.kr/sch/handle/2021.sw.sch/8123
- DOI
- 10.14474/ptrs.2017.6.3.127
- ISSN
- 2287-7576
- Abstract
- Objective: The purpose of this study was to explore the effect of repetitive wrist extension task training with electromyography (EMG)-triggered neuromuscular electrical stimulation (NMES) for wrist extensor muscle recovery in patients with stroke.
Design: Randomized controlled trial.
Methods: Fifteen subjects who had suffered a stroke were randomly assigned to an EMG-triggered NMES group (n=8) or control group (n=7); subjects in both groups received conventional therapy as usual. Subjects in the experimental group received application of EMG-triggered NMES to the wrist extensor muscles for 20 minutes, twice per day, five days per week, for a period of four weeks, and were given a task to make a touch alarm go off by activity involving extension of their wrist. In the control group, subjects performed wrist self-exercises for the same duration and frequency as those in the experimental group. Outcome measures included muscle reaction time and spectrum analysis. Assessments were performed during the pre- and post-treatment periods.
Results: In the EMG-triggered NMES group, faster muscle reaction time was observed, and median frequency also showed improvement, from 68.2 to 75.3 Hz, after training (p<0.05). Muscle reaction time was significantly faster, and median frequency was significantly higher in the experimental group than in the experimental group after training.
Conclusions: EMG-triggered NMES is beneficial for patients with hemiparetic stroke in recovery of upper extremity function.
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