Allow your muscles to relax completely.

让你的肌肉完全放松。

《牛津词典》

Do you feel that your muscles do not have the strength and resilience that they should have?

你觉得你的肌肉不具备它应有的力量和弹性了吗？

《柯林斯英汉双解大词典》

Scientists believe that this makes your muscles tiring, so we start to produce endorphins.

科学家认为这会使你的肌肉疲劳，所以我们体内开始产生内啡肽。

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If you sit in your chairs and look at this keyboard, and relax your muscles and imagine moving your right arm up and hitting the "s" key.

当你坐在椅子上，注视着电脑键盘，放松肌肉,想象你抬起右臂敲击，S，键。

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improve your range of motion and strengthen those muscles, they get weaker during that process

改善你的运动范围并加强这些肌肉，它们就会在运动过程中变弱，

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If you decide to raise your hand, those are motor neurons telling the muscles what to do.

如果你要举手,这些运动神经元会告诉肌肉该做些什么

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You'll get more from your workouts if your muscles can grow to their potential.

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Your muscles work to overcome resistance (by contracting) to raise the object to the desired position.

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You can also apply heat or take a warm bath to relax your muscles.

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