These rhythmic waves of muscular relaxation and contraction are called peristalsis.
这种肌肉舒张和收缩的有节律波动称为蠕动。
2
As a result, during exercise they had a much higher ability to regenerate the ATP that fuels muscularcontraction than those who had a greater reliance on carbohydrates.
因此，这些酵素在运动时比主要依赖糖代谢的酵素有较高的能力再生肌肉收缩所需的AT P。
3
The heart , which is a muscular pump , beats about 72 times a minute through a continuous and automatic process of muscularcontraction and relaxation .