The extent of muscle stretch was in normal physiology and smaller, which was 24% length of muscle belly.

肌肉拉伸时的幅度小，为其肌腹长度的24％，在肌肉正常生理运动范围之内；

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The extent of muscle stretch was in normal physiology and smaller, which was 24% length of muscle belly.

肌肉拉伸时的幅度小，为其肌腹长度的24％，在肌肉正常生理运动范围之内；

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