I forget what this exercise is called (I think it is back bridge, I forget) and i already tried a search on it, but is it when you lay down on your back, and make your stomach come up, with the support of your head, and your legs ?
I was just wondering if this exercise if worth doing and for how long, and what you can benefit from it.
I was just wondering if this exercise if worth doing and for how long, and what you can benefit from it.
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