Kotake T, Dohi N, Kajiwara T, Sumi N, Koyama Y, Miura T
Department of Rehabilitation Medicine, Fujita Health University, Nanakuri Sanatorium, Mie-ken, Japan.
Arch Phys Med Rehabil. 1993 Oct;74(10):1095-9. doi: 10.1016/0003-9993(93)90068-l.
We analyzed the movements involved in rising from a knee-high chair in 12 healthy men weighing within +/- 10% of standard body weight. A regular series of transition points was observed in the angles of the hip, knee, and ankle joints throughout the sit-to-stand movement, which was classified into six stages. As the duration of sit-to-stand movements increased, the duration of Stage 2 decreased, whereas Stage 3 grew longer. The durations of stages 4 and 5 remained constant. We also calculated the minimum unilateral hip and knee extension torque per weight in kilograms required for natural sit-to-stand movements, or N-Stand (1.7-2.3 seconds), and found that minimum hip extension torque was 0.7Nm and minimum knee extension torque was 0.9Nm. The minimum hip and knee extension torque required for N-Stand corresponds to a mean 27% and 30%, respectively, of the actual maximum hip and knee extension torque.
我们分析了12名体重在标准体重±10%范围内的健康男性从齐膝高椅子上起身时的动作。在整个从坐到站的动作过程中，观察到髋关节、膝关节和踝关节角度有一系列规律的过渡点，该动作被分为六个阶段。随着从坐到站动作持续时间的增加，第2阶段的持续时间减少，而第3阶段变长。第4和第5阶段的持续时间保持不变。我们还计算了自然从坐到站动作（即N-Stand，1.7 - 2.3秒）每千克体重所需的最小单侧髋关节和膝关节伸展扭矩，发现最小髋关节伸展扭矩为0.7牛米，最小膝关节伸展扭矩为0.9牛米。N-Stand所需的最小髋关节和膝关节伸展扭矩分别相当于实际最大髋关节和膝关节伸展扭矩的平均27%和30%。
