Ellis M I, Seedhom B B, Wright V
J Biomed Eng. 1984 Apr;6(2):113-20. doi: 10.1016/0141-5425(84)90053-0.
Knee joint forces were determined by kinesiological techniques, using a high speed cine camera, a force platform, a specially constructed dynamometerized chair, and EMG recorders; so that a comparison could be made for rising from a normal chair with and without the aid of arms, and for rising from high and low chairs. For rising from the seated position, the knee joint forces parallel to the long axis of the tibia at the point of contact between the tibia and femur were found to be up to seven times body weight at about the time when the body left contact with the chair. When rising from a chair with the aid of arms, the knee joint forces were reduced to less than three times body weight. Knee joint and muscle forces were also reduced when rising from a high seat compared with rising from a low seat.
通过运动学技术测定膝关节力，使用高速电影摄影机、测力平台、特制的带测力计的椅子和肌电图记录器；以便能够比较在有和没有手臂辅助的情况下从普通椅子起身，以及从高椅子和低椅子起身时的情况。对于从坐姿起身，在身体离开椅子接触点时，在胫骨和股骨接触点处平行于胫骨长轴的膝关节力被发现高达体重的七倍。当借助手臂从椅子起身时，膝关节力降低到体重的三倍以下。与从低座位起身相比，从高座位起身时膝关节和肌肉力量也会降低。
