뇌졸중 환자의 발목 보조기 착용이 발목 근육의 활성도와선 자세 균형에 미치는 영향
The effect of wearing an ankle support on the activity of ankle muscles and standing posture balance for stroke patients.
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본 연구의 목적은 뇌졸중 환자의 선 자세에서 보조기 착용과 미착용 시 발목 근육의 전 경골근과 내측 비복근에 근 활성도의 변화가 균형에 미치는 영향을 알아보았다. 연구 방법은 강원도에 위치한 H, K, R 병, 의원에서 운동치료(Therapeutic Exercise)를 받는 뇌졸중 환자 26명중 발목 보조기 착용군 13명, 미착용군 13명으로 나누어 EMG를 이용하여 건측과 환측의 전경골근(Tibialis anterior;TA)과 내측 비복근(medial gastrocnemius;MGCM)의 근 활성도를 측정하였고, TETRAX 장비로 안정성 지수(Stability index;SI)와 체중 분포 지수(Weight distribution index;WDI)를 측정하였다. 결과는 독립표본 t 검정으로 분석하였다. 연구결과 발목 보조기 착용군은 환측의 전경골근 근 활성도에서 유의한 차이가 있었고(p<.05), 안정성 지수에서는 눈 감고 선 자세와 정적 안정성 지수에서, 체중분포지수에서는 스폰지 위에 눈 뜨고 선 자세에서 유의한 차이가 있었다(p<.05). 따라서 만성 뇌졸중 환자의 근 활성도와 균형개선을 위해 발목 보조기 사용이 선 자세의 안정성 제공과 체중분포에도 영향을 미치는 것으로 예상되므로 뇌졸중 환자의 발목 보조기 사용 시 고려되어야 할 것이다.
Abstract
The objective of this study is to learn how muscle activity of tibialis anterior and medial gastrocnemius changes and the balanced is affected when a stroke patient wears an ankle support in standing posture. The study was conducted from H, K, and R clinic or hospital with 26 stroke patients who participate in the therapeutic exercise. Among the 26 subjects, 13 of them wore an ankle support and the other 13 did not. The EMG was utilized to measure the muscle activity in the tibialis anterior (TA) and the medial gastrocnemius (MGCM), and the TETRAX equipment was used to calculate the stability index (SI) and the weight distribution index (WDI). The data were analyzed using independant t-test. As a result, the group wearing an ankle support showed a statistically significant difference in the muscle activity of tibialis anterior of the affected side(p<.05). In the stability index, a statistically significant difference was observed when the patients stood still with their eyes close, and in the static stability index(p<.05). In the weight distribution index, when they were instructed to stand on sponge with their eyes open (p<.05). It is considered that the ankle support, which is influenced to improve muscle activities and balance of stroke patients, also provides stability in the standing posture and affects the weight distribution. Therefore, stroke patients should take this into account when deciding to use an ankle support.
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