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Old 01-19-2013, 09:54 AM   #4
brown bomber
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Default Re: running vs circuit training vs skipping

Originally Posted by Jdsm View Post
Your body does adapt, that's how your capacity increases.

There's a lot of ground reaction force (Newton's 3rd law and all that) involved in overground running, so I don't like to do it frequently tbh.
Who have you been talking to?
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