A model for determining 3-D upper extremity net joint forces and moments during wheelchair propulsion
A model for determining 3-D upper extremity net joint forces and moments during wheelchair propulsion
复制标题
用于确定轮椅推进过程中 3D 上肢净关节力和力矩的模型
DOI：
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发表时间：
1995
期刊：
影响因子：
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通讯作者：
R. Cooper
中科院分区：
文献类型：
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作者：
G. J. Ensminger;R. N. Robertson;R. Cooper
描述了一种用于估计轮椅推进活动过程中上肢关节运动参数的方法。要计算估计的三维净反作用力和力矩作用在手腕，肘，肩关节在轮椅推进，上半身部分的运动学，外部动力学和身体部分人体测量的措施是必要的。使用装有仪器的轮椅pushrim测量作用在人体系统上的外力。运动学数据通过视频数字化身体节段标记来收集。还收集了身体部分的人体测量数据。人体测量模型，考虑到这个人口的非比例质量分布，用于估计身体部分的惯性参数。通过使用先前开发的递归算法来实现计算。收集了15名受试者的三维运动学、动力学和人体测量数据。这里给出了这些受试者的净关节力和力矩计算的样本结果。
Describes the implementation of a method for the estimation of kinetic parameters imposed on and developed by the upper extremity joints during the activity of wheelchair propulsion. To calculate estimates of the three-dimensional net reaction forces and moments acting at the wrist, elbow, and shoulder joints during wheelchair propulsion, measures of upper body segment kinematics, external kinetics, and body segment anthropometry are necessary. The external forces acting on the human system were measured using an instrumented wheelchair pushrim. The kinematic data were collected by video digitization of body segment markers. Body segment anthropometric data were also collected. An anthropometric model, taking into consideration the non-proportional mass distribution of this population, was used for the estimation of body segment inertial parameters. The calculations were implemented by the use of a recursive algorithm which was previously developed. Three dimensional kinematic, kinetic, and anthropometric data were collected for 15 subjects. A sample result of the net joint force and moment calculations for these subjects is presented here.