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I'm starting doing push up at home, leverage for an easy start. When I place my hands on the edge of a sharp edge, like bed edge, my wrists are hurt. When I gripping a round bar, the hurt disappears. I know I shouldn't push up with the sharp edge anymore, but I would like to learn the mechanism behind that, for education purpose.

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  • What part of your wrist hurts? Or, is it your palm that causes discomfort? – rrirower Dec 31 '16 at 18:04
  • The joint inside it. Is that enough information? – Ooker Jan 1 '17 at 9:16
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Compare the angle of your hand to your forearm when gripping a sharp edge vs gripping a bar. I think you'll find you are bending your wrist farther backward (maybe even "bottoming out" the joint) when gripping a sharp edge and increasing the strain there.

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