I do shadow kickboxing alot & my wife has sum of those sissy dumbell weights, what benefits will holding the weights do whilst shadowboxing? do they help with speed & will they help build muscle in my shoulders?
I do shadow kickboxing alot & my wife has sum of those sissy dumbell weights, what benefits will holding the weights do whilst shadowboxing? do they help with speed & will they help build muscle in my shoulders?
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