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Beseler, Bradley; Williams, Kathleen; Plumb, Mandy S. – Journal of Motor Learning and Development, 2021
Background: Roberton's movement components are used to assess fundamental motor skills as segmental developmental sequences. In 1991, Haywood, Williams and VanSant determined that original developmental sequences proposed for the backswing levels of the overarm throw did not encompass all ages. Their study of older throwers identified two new…
Descriptors: Psychomotor Skills, Motion, Motor Development, Physical Activities
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Southard, Dan – Research Quarterly for Exercise and Sport, 2009
Accomplished throwers conserve angular momentum when distal joints of the throwing arm reach peak velocity at a later time than their proximal neighbors. The result is an increase in velocity of the most distal segment--the hand. Past research indicates that skill level varies by the number of joints experiencing distal timing lag (time to peak…
Descriptors: Motion, Discriminant Analysis, Statistical Analysis, Human Body