muscle of low limb的用法和样例：
例句
- To improve the low limbs amyotrophy , varix , to keep the good states of the skeleton and joint.
能改善下肢肌肉萎缩，静脉曲张，保持骨胳及关节的良好状态。 - The case showed weak muscle strength at the neck and the lower extremities and poor postural stability in various motor activities in the early months of age.
个案的早期动作发展呈现较弱的颈部及下肢肌肉力量，而且各姿势的稳定度控制差。
