YouTube – Stability Ball Jackknife Push Up
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Published on Apr 18, 2012 by MRTbootcampworkouts You are using an outdated browser, which YouTube no longer supports. Since some features on YouTube may not work, you are viewing a lightweight version of the video page. Go back to the regular page Loading…
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From: (Stability Ball Jackknife Push up ) http://www.youtube.com/watch?v=OZXtKqkWFZo