Dec 10, 2009 5:45 AM:
Be sure to warm up the knees first to avoid injury, do not "bounce" the movement, keep it fluid without locking the knees.
Be sure to warm up the knees first to avoid injury, do not "bounce" the movement, keep it fluid without locking the knees.-See Less
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Dec 10, 2009 5:45 AM: Be sure to warm up the knees first to avoid injury, do not "bounce" the movement, keep it fluid without locking the knees.