Thread: Physics puzzle: chin-ups.
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Old 03-30-2006, 09:01 PM
pzhon pzhon is offline
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Default Re: Physics puzzle: chin-ups.
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well these are not all the same musscles at work here.

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Right, not all are the same. The chin-up uses back muscles, too. What component of the chin-up comes from using the muscles involved in a curl?
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