下肢肌肉力量；
功能：增强腿部肌肉力量及下肢的运动能力。
Functions: Developing the muscle strength of legs, improving the movement capability of lower limbs.
加强排球运动员下肢伸肌群的速度力量素质训练和肩关节周围肌肉的力量以及柔韧性训练。
The speed power quality of athletes' lower limbs, the power of muscles around shoulder joints and flexibility training should be strengthened.
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