Check for wrist or finger movement, there should be none with back tension.
检查手腕或手指的活动,那不应有背部紧张的情况。
A doctor can check this for you; you can also monitor it yourself using a finger pulse oximeter, available in medical supply stores.
医生可以作这项检查。也可以自己用指尖脉博血氧仪来自行监测血氧含量,该血氧仪在医药用品商店有售。
Check for wrist or finger movement, there should be none with back tension. The rhomboid muscles in your back are the workers in this exercise.
检查手腕和手指的移动,它们应该不参与背加力撒放动作。背部菱形肌是背加力撒放的源动力。
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