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Old 12-28-2012, 07:11 AM   #87
Join Date: Feb 2011
Posts: 6,279

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.
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