It follows that if all else is equal, any increase in ball speed would be likely to improve the likelihood for a successful attack. Black line represents global radius of rotation. Red line represents tangential velocity of the hand at contact. It will be proportional to approach speed. It is further hypothesized that this forward somersaulting rotation will be proportional to approach speed.
Black line represents global radius of rotation.
Red line represents tangential velocity of the hand at contact. Black line represents global radius of rotation. Red line represents tangential velocity of the hand at contact. It is hypothesized that this cartwheeling rotation is responsible for the increased incidence of one-legged landings and may therefore be a contributing factor to lower extremity injury. Effects of approach speed on angular momentum With increases in horizontal approach speed, forward somersaulting angular momentum is likely to increase.