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KMID : 0603920090170040013
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Journal of Korean Academy of Occupational Therapy
2009 Volume.17 No. 4 p.13 ~ p.24
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Effects of EMG Biofeedback Training on the Hand Functions of Stroke Patients
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Han Seung-Hyup
Choi Yong-Won
Kam Kyung-Yoon
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Abstract
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Objective : The aim of this study is to investigate the effects of EMG biofeedback training on the hand functions of stroke patients.
Methods : Ten patients who had suffered from the effects of a stroke for at least six months participated in this study. Five of the subjects were randomly given EMG biofeedback training, while the others were assigned as a control group. One session of EMG biofeedback tracking tasks consists of resting and activity stages. During the activity stage, the subjects performed tracking tasks forty times. The experimental group performed one session of tracking tasks per day and received the training five days per week for six consecutive weeks. Their hand functions were measured before and after training using Modified Ashworth Scale, Fugl-Mayer assessment scale, Box & Block test, and Manual Function Test.
Results : Except for the Modified Ashworth Scale, all other post-test scores for hand functionality after six weeks of training showed a statistically significant difference compared with the pre-test scores before training (p<.05). However, the control group failed to show a significant difference between the pre- and post-test scores in all tests. The experimental group showed a significant improvement in hand functionality measured by all tests, compared with the control group (p<.05).
Conclusion : This study suggests that EMG biofeedback training can be an effective therapeutic tool in the improvement of hand functions of stroke patients.
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KEYWORD
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Biofeedback, Electromyogram, Hand function, Stroke, Tracking task
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