他们声称通过伸展，肌肉纤维会被拉伸，原有的平衡被打破，使得它们来不及应对接下来紧张的锻炼。

They claim that by stretching, muscle fibers are lengthened and destabilized, making them less prepared for the strain of exercise.

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这几种氨基酸会促进蛋白质分子伸展并形成纤维。

These encourage protein molecules to stretch out and form fibres.

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目的：本实验旨在研究伸展或联合伸展及侧方屈曲是否能使纤维环的突出部分向髓核方向移动。

Objective. This study investigated whether extension or combined extension and side flexion could move the displaced portion of nucleus from the anulus towards the nucleus.

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To do that they have to be able to stretch out and they have to be able to pull.

为此,成纤维细胞必须能够伸展,和回拉

耶鲁公开课 - 生物医学工程探索课程节选

This shows a fibroblast that is very stretched out.

这里展示的是一个充分伸展的成纤维细胞

耶鲁公开课 - 生物医学工程探索课程节选