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Stretching/elongating a muscle and holding a steady point without bouncing for a period of 20 seconds.
锻炼前对局部肌肉进行伸展运动，或是充分拉伸这个部位，保持这个状态不动达20秒钟。
youdao
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Stretching/elongating a muscle and holding a steady point without bouncing for a period of 20 seconds.
锻炼前对局部肌肉进行伸展运动，或是充分拉伸这个部位，保持这个状态不动达20秒钟。
youdao