What's wrong with having back pain when you work out?

Diet

After doing this, my back hurts...

I heard it's abdominal exercise, but is it supposed to grow waist strength?


  242 2   7 years ago

pu1. It's because of the wrong posture. When you do it, your back and waist have to stick to the floor.


2018-01-31

pu2. If your back is on the floor, it can be because your back is tense. As Bbu said, stick it on


2018-01-31


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