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KMID : 0357220090210010019
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Journal of Korean Society Physical Therapy
2009 Volume.21 No. 1 p.19 ~ p.25
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Immediate Effects of Load Stimulation on Static Balance and Muscle Activities in Chronic Stroke Patients
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Lee Seung-Won
Shin Won-Seob
In Tae-Sung
Lee Sun-Hyun
Lee Hae-Hyun
Lee Kyoung-Jin
Song Chang-Ho
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Abstract
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Purpose: We investigated the changes that effects of load stimulation (LS) on static balance and muscle activities in normal healthy elders and chronic stroke patients.
Methods: Subjects were instructed twenty normal healthy elders (8 men and 12 women) and ten chronic stroke patients (4 men and 6 women). They were tested while standing on a force platform under two conditions; LS, no LS were applied in random order. Prior to testing, adhesive surface EMG electrodes were fastened to the skin overlying the right (non-paralytic side in stroke patient) bellies of tibialis anterior (TA) and lateral gastrocnemius (LG) muscles. They were assessed on postural sway and %MVC (Maximum voluntary contraction) of TA and LG.
Results: Participants showed that the application of LS brought about a decrease in postural sway as expressed by average sway path and velocity. %MVC of TA and LG were increased. The application of LS to normal and stroke patients decreases postural sway during quite stance.
Conclusion: These findings the application of LS to normal and stroke patients improves static balance.
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KEYWORD
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Balance, EMG, Load stimulation, Postural sway, Stroke
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