Quantification of intersegmental reactions during rapid swing motion.
Quantification of intersegmental reactions during rapid swing motion.
复制标题
快速摆动运动期间节间反应的量化。
DOI：
10.1016/0021-9290(83)90073-8
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发表时间：
1983
影响因子：
2.4
通讯作者：
T. C. Huang
中科院分区：
文献类型：
--
作者：
S. J. Phillips;E. M. Roberts;T. C. Huang
建立了一个简单的数学模型来量化两个相邻节段之间的非肌肉反应，这两个相邻节段经历快速的自由节段运动。使用牛顿运动方程模拟两个节段的轨迹，输入参数为仅作用于近端连杆近端的线性加速度和肌肉力矩。节段间的肌肉力和力矩在数学上被认为是零，并且对两个节段的运动没有约束。该模型模拟了跑步摆动阶段大腿和小腿的运动，并与从电影记录中获得的真实的运动进行了比较。模拟结果表明，大腿近端运动对小腿远端运动有显著影响。取决于初始条件，仅节段间反应就可以使远端节段速度大幅增加。膝盖肌肉组织的作用，在防止这些反应在摆动阶段的运行进行了推断。
A simple mathematical model was developed to quantify the non-muscular reactions between two adjacent segments undergoing rapid free-segment motion. Newtonian equations of motion were used to simulate the trajectories of the two segments using the input parameters of linear acceleration and muscular moment acting only about the proximal end of the proximal link. The intersegmental muscular force and moment were mathematically considered to be zero, and no constraints were placed on the motion of the two segments. The motion of the thigh and shank during the swing phase of running was simulated by the model and compared to the real motion obtained from cinematographic records. The simulation demonstrated that proximal thigh motion has a significant effect on the distal shank motion. Depending on the initial conditions, intersegmental reactions alone can produce large increases in distal segment speed. The role of the knee musculature in preventing these reactions during the swing phase of running was inferred.