汉英对照/我们曾经认为，伸展肌肉对于温暖肌肉和准备锻炼很必要

我们曾经认为，伸展肌肉对于温暖肌肉和准备锻炼很必要。 但是，越来越多的研究表明，在热身之前伸展肌肉实际上会损害肌肉。 当一切变冷时，肌肉纤维尚未准备好，可能会受损。 如果您先运动，血液将流到该区域，这将使组织更柔软，更容易拉伸。

We used to think that stretching muscles is necessary to warm the muscles and prepare for exercise. However, more and more studies have shown that stretching muscles before warming up can actually damage muscles. When everything gets cold, the muscle fibers are not ready and may be damaged. If you exercise first, blood will flow to the area, which will make the tissue softer and easier to stretch.