Feb 22, 2011 5:40 PM:
You increase difficulty the lower you go or even have dumbbells or plates between your feet to increase difficulty.
You increase difficulty the lower you go or even have dumbbells or plates between your feet to increase difficulty.-See Less
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Feb 22, 2011 5:40 PM: You increase difficulty the lower you go or even have dumbbells or plates between your feet to increase difficulty.