Cheng P T, Liaw M Y, Wong M K, Tang F T, Lee M Y, Lin P S
Department of Physical Medicine and Rehabilitation, Chang Gung Memorial Hospital, Tao-Yuan, Taiwan.
Arch Phys Med Rehabil. 1998 Sep;79(9):1043-6. doi: 10.1016/s0003-9993(98)90168-x.
To use kinetic assessment of the sit-to-stand movement as a means of sorting out those stroke patients at risk for falling.
A retrospective study, using a force platform to assess sit-to-stand performance and to determine its correlation with falls in stroke patients.
Hospital-based rehabilitation units.
Thirty-three stroke patients (18 fallers, 15 nonfallers) and 25 age-matched healthy subjects were included in this study. Subjects sat in an adjustable chair with their feet on two force plates and performed the standing up/sitting down movement at a self-paced, comfortable speed.
The rate of rise in force (dF/dT) was significantly lower in stroke fallers than in stroke nonfallers and healthy subjects (23.78+/-17.38, 55.23+/-31.24, and 85.96+/-42.4 percent body weight per second, respectively [p < .005]). The center of pressure sway in mediolateral direction during rising/ sitting down was much greater in stroke fallers than in stroke nonfallers or healthy subjects (p < .05). Body weight distribution was asymmetric on the feet of stroke patients, with much more body weight on their sound side.
The significantly lower rate of rise in force and greater postural sway while rising/sitting down may be useful in identifying stroke patients who are at risk for falling.
采用从坐到站动作的动力学评估方法，筛选出有跌倒风险的中风患者。
一项回顾性研究，使用测力平台评估从坐到站的表现，并确定其与中风患者跌倒情况的相关性。
医院康复科。
本研究纳入了33例中风患者（18例有跌倒史，15例无跌倒史）和25例年龄匹配的健康受试者。受试者坐在可调节椅子上，双脚放在两个测力板上，以自己选择的舒适速度进行站起/坐下动作。
中风跌倒患者的力量上升速率（dF/dT）显著低于中风未跌倒患者和健康受试者（分别为每秒23.78±17.38、55.23±31.24和85.96±42.4体重百分比[p <.005]）。中风跌倒患者在站起/坐下过程中外侧方向的压力中心摆动明显大于中风未跌倒患者或健康受试者（p <.05）。中风患者双脚的体重分布不对称，健侧承受的体重更多。
力量上升速率显著降低以及站起/坐下时姿势摆动更大，可能有助于识别有跌倒风险的中风患者。
