속도변화에 따른 후방보행 훈련이 하지 근육에 미치는 영향

국문 초록 (Abstract)

본 논문은 속도변화에 따른 후방보행 훈련이 하지의 넙다리 근육에 미치는 영향을 알아보기 위한 것으로 30 명의 대상자를 무작위로 세 집단; 실험군Ⅰ(전방보행 5km/h: 10명), 실험군Ⅱ(후방보행 5km/h: 10명), 실험군Ⅲ(후방보 행 2.5km/h: 10명)으로 나누어 실험하였다. 실험은 4주간 주 4회 30분씩 실시하였으며 실험 전과 실험 4주 후에 각 실험군의 넙다리곧은근의 활성도와 넙다리네갈래근의 근력을 측정하였다. 연구의 결과 넙다리곧은근의 활성도는 전방 보행 군보다 후방보행 군에서 더 의미 있는 변화를 보였으며 실험군Ⅲ보다 실험군Ⅱ에서 더 의미 있는 변화를 나타 냈다. 넙다리네갈래근의 근력 또한 전방보행 군보다 후방보행 군에서 더 의미 있는 변화를 보였으며 실험군Ⅲ보다 실 험군Ⅱ에서 더 의미 있는 변화를 나타냈다. 이상의 결과에 따라 후방보행이 전방보행에 비해 넙다리 근육의 근 활성 도와 근력에 보다 효과적이라고 할 수 있으며 초기 재활에서 느린 속도의 후방보행이 효과적으로 활용될 수 있음을 알 수 있다.

다국어 초록 (Multilingual Abstract)

The purpose of this study was to find out the effects of depending on variations of speed in backward walking on lower extremities muscle. For this study, 30 members were randomly divided into three groups; groupⅠ(n=10, forward walking: 5km/h), groupⅡ(n=10, backward walking: 5km/h), groupⅢ(n=10, backward walking: 2.5km/h). This exercise was performed to 30 minutes 4 times a week for 4 weeks. This study was measured before the exercise and after 4 weeks. The result of this study are as follows. The muscle activity of rectus femoris was higher in backward walking group(p<.01) than in forward walking group and it was the highest at groupⅡ(p<.001). The quadriceps muscle strength of thigh was higher in backward walking group(p<.01) than in forward walking group and it was the highest at groupⅡ(p<.001). From these results, backward walking training was effective on muscle activity, strength of thigh muscle. Although fast speed backward walking was most effective, low speed backward walking that compare with forward walking was effective.

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