휠체어 새천년 건강체조의 팔꿈치 운동속도에 따른 상지협응과 근활성도 변화 (Wheelchair-based New Millennium Health Gymnastics: Muscle Activity and Upper Limbs Coordination by Elbow Exercise Velocity)

서지정보

· 발행기관 : 대한물리의학회
· 수록지 정보 : 대한물리의학회지 / 9권 / 2호 / 161 ~ 170페이지
· 저자명 : 이강진, 김택훈

초록

Purpose : This study concerns the wheelchair-based rehabilitation of elderly people, investigating muscle activity and coordination of upper limbs during wheelchair-based new millennium health gymnastics with varying elbow exercise velocity.
Methods : Twelve elderly people participated in new millennium gymnastics twice per week during 12-weeks. The group was separated into 0.4, 1.0, and 1.6 Hz groups (controlled by the metronome speed). Range of motion was measured by electrogoniometer, electromyography signals used root mean square values. The data application was normalized using reference voluntary contraction (%RVC). Upper limb (wrist and elbow joint) data gathered while standing up after the “falling on hips” was investigated in terms of coordination of angle-angle plots. One-way ANOVA, paired t-test and Scheffe's post hoc comparisons, were used for statistical analyses.
Results : There were results taken before and after the experiments. The results demonstrated a significant improvement in the triceps brachii and flexor carpi radialis of the 0.4 ㎐ group (p<.05). There was significant difference in the triceps brachi of the 1 ㎐ group. No significant differences were found in all muscles of the 1.6 ㎐ group. Muscle co-activation indexes of the 0.4 ㎐ group were larger than the others. The 0.4 ㎐ graph was turning point synchronized clockwise. The 1 ㎐ graph was out of phase with the negative slope. The 1.6 ㎐ graph was turning point synchronized counterclockwise, and uncontrolled factor phase was offset on angle-angle plots.
Conclusion : It is found that improvement of muscle activity and upper limbs coordination of elderly people using wheelchair-based new millennium gymnastics is optimal with elbow exercise velocity with a frequency of 0.4 ㎐.

영어초록

Purpose : This study concerns the wheelchair-based rehabilitation of elderly people, investigating muscle activity and coordination of upper limbs during wheelchair-based new millennium health gymnastics with varying elbow exercise velocity.
Methods : Twelve elderly people participated in new millennium gymnastics twice per week during 12-weeks. The group was separated into 0.4, 1.0, and 1.6 Hz groups (controlled by the metronome speed). Range of motion was measured by electrogoniometer, electromyography signals used root mean square values. The data application was normalized using reference voluntary contraction (%RVC). Upper limb (wrist and elbow joint) data gathered while standing up after the “falling on hips” was investigated in terms of coordination of angle-angle plots. One-way ANOVA, paired t-test and Scheffe's post hoc comparisons, were used for statistical analyses.
Results : There were results taken before and after the experiments. The results demonstrated a significant improvement in the triceps brachii and flexor carpi radialis of the 0.4 ㎐ group (p<.05). There was significant difference in the triceps brachi of the 1 ㎐ group. No significant differences were found in all muscles of the 1.6 ㎐ group. Muscle co-activation indexes of the 0.4 ㎐ group were larger than the others. The 0.4 ㎐ graph was turning point synchronized clockwise. The 1 ㎐ graph was out of phase with the negative slope. The 1.6 ㎐ graph was turning point synchronized counterclockwise, and uncontrolled factor phase was offset on angle-angle plots.
Conclusion : It is found that improvement of muscle activity and upper limbs coordination of elderly people using wheelchair-based new millennium gymnastics is optimal with elbow exercise velocity with a frequency of 0.4 ㎐.

참고자료

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