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운동역학: 미끄럼 발생에 따른 노인의 보행 동적특성 연구
조병준(ByungJoonCho),원문학(WenXueYuan),김선필(SeonPilKim) 한국체육학회 2002 한국체육학회지 Vol.41 No.5
This study investigates the balance adjustment of walking to prevent a slipping accident in the elderly. Gait analyses for six elderly subjects were performed on three different road conditions; normal surface, slip information on the normal surface, slippery surface with oil contaminant.1. On the slippery ground surface, the gait pattern was modified into the longer supporting time to secure balance recovery. However, the foot strike angle showed insignificant variation from slippery motion.2. On three different road conditions, the subjects appeared a tendency to raise their body center, and restricted the vertical body motion in comparison with the young subjects.3. During the supporting period after slip, the subject showed the rapid increase of the positive moment and notable energy loss. At the knee, the subject experiences the rapid increase of the negative moment, and the similar power patterns on the normal gait. At the hip, the subjects maintained the noticeable pattern of the flexion moment and diminished the pattern of the extension moment at the latter supporting period. In addition, the subjects did not show the peak of the energy absorbtion during the supporting period. This result shows the tendency to lessen the response for balance adjustments in the elderly.
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