Originally Posted by dominikk1985
the arm is dragged by the body initially. then the body rotation stops and the arm is actively whipped through (partly from the stopping but also by using hard muscle contraction).
activating the arm too early is short circuiting the kinematic chain but nobody is using a totally passive arm. a good shot uses all muscles of the body.
At what approximate point would you say the active use of the arm comes in from the beginning of the forward swing to contact point? Maybe halfway through the swing path such that the kinetic rotation of the body is best transferred?