Hawkins D
Department of Physical Education, University of California, Davis 95616.
Comput Methods Programs Biomed. 1994 Mar;42(3):213-22. doi: 10.1016/0169-2607(94)90131-7.
A computer program was developed in conjunction with a musculoskeletal modeling scheme to determine lower extremity joint angular velocity profiles which allow specific muscles, if activated tetanically, to generate their greatest power. As input the program requires subject anthropometric and joint configuration data. Muscle-tendon (MT) attachment location data and a straight line MT model are used to calculate MT lengths for each joint configuration. The shortening velocity which allows an active muscle to generate its greatest power is calculated based on muscle architecture and a relationship between power and shortening velocity. A finite difference technique is used to calculate the time between sequential joint configurations which will produce the optimal muscle shortening velocity. This time is then used to calculate optimal joint angular velocities for each muscle and and for each joint configuration. The utility of this program is demonstrated by calculating optimal joint angular velocities for fifteen muscles and comparing calculated knee extension velocities with experimental results cited in the literature.
开发了一个与肌肉骨骼建模方案相结合的计算机程序，以确定下肢关节角速度曲线，该曲线能使特定肌肉在强直激活时产生最大力量。该程序作为输入需要受试者人体测量学和关节构型数据。肌肉 - 肌腱（MT）附着位置数据和直线MT模型用于计算每个关节构型的MT长度。基于肌肉结构以及力量与缩短速度之间的关系，计算出使活跃肌肉产生最大力量的缩短速度。使用有限差分技术计算连续关节构型之间的时间，该时间将产生最佳肌肉缩短速度。然后，利用这段时间计算每个肌肉以及每个关节构型的最佳关节角速度。通过计算15块肌肉的最佳关节角速度，并将计算出的膝关节伸展速度与文献中引用的实验结果进行比较，证明了该程序的实用性。
