Why is it like that when I work out my back hurts so much? Is it because you don't work out too much?
197 3 7 years ago
pu2. I didn't know what kind of exercise it is, so I looked it up, but I think I can strain my back... When you open your thighs, you will receive the weight load and the rotational force of your legs from the back of your waist, which will inevitably strain your back. In particular, I saw the video that it would be more difficult to rebound your legs, and it would be possible if you did it very slowly without rebounding, but I don't know why you need to exercise so much without other good exercises
2017-12-06
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