结果对研究对象膝关节屈曲运动中股二头肌短头力臂及长度进行计算和分析。
Results the length and the moment arm of the biceps femoris (short head) during knee flexion are calculated and analyzed.
这个模拟实验显示：尽管这样的结构造成了力学上的缺陷，但事实上短跑运动员短足跟所提供的短力臂比非短跑运动员的长力臂能提供更大的力量。
The simulation revealed that despite providing a mechanical disadvantage, the short lever arm of a sprinter's heel actually produced more force than the longer lever arm of a non-sprinter.
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