强度和耐力的训练能帮我们塑造肌肉，通常包括举重和使用拉力带锻炼。
Strength training, done with resistance to help build muscle mass, usually includes exercises such as weight lifting or using a resistance band.
由于你连在脚踵上的小腿腓肠肌紧张而无法伸展，引起脚趾被拉低，这让你小腿正面的肌肉受到压力，而你小腿正面肌肉还无法对抗这种拉力，好疼！
This puts strain on the muscles in the front of your leg, which unfortunately are not strong enough to resist the pulling. Ouch.
本发明利用伺服电机带动圆盘转动，圆盘转动时拉动牵引钢绳，从而产生拉力，实现了与生物肌肉组织相似的收缩运动。
The present invention has servo motor rotating the disc and disc driving the traction steel cord to generate pull force and realize contraction motion similar to that of muscle tissue.
膝关节损伤在太极拳运动中较常发生，它的损伤与太极拳运动的姿势、技术动作、下肢肌肉的收缩力和韧带的牵拉力等因素有密切关系。
Knee joint injury often occurs in hexagram boxing exercises. It is closely related to the movement posture and skills, the contraction of leg muscles and the traction of ligamem, etc.
如果习惯仰睡时，可将膝盖弯曲或在膝盖下放置枕头，以减缓肌肉的拉力。
When if the habit is admired, sleeping, can curve knee or the pillow is placed below knee, with pulling force of slow down sarcous.
如果习惯仰睡时，可将膝盖弯曲或在膝盖下放置枕头，以减缓肌肉的拉力。
When if the habit is admired, sleeping, can curve knee or the pillow is placed below knee, with pulling force of slow down sarcous.
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