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Old 04-12-2007, 12:38 PM   #6
Rick Deckart
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Join Date: Jan 2007
Posts: 557
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Mike Burgener told me once that it is a good start to do jumps on boxes for three or four weeks before switching to jump squats. Leg bend and roundbacking certainly helps but you don't jump up on a 40" box with leg bend alone...
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