Kinesiology 2241A/B Lecture Notes - Lecture 24: Moment Of Inertia, Angular Velocity
4 Jan 2021
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Document Summary
Recall from the two last lectures ago that throwing movements are characterized by the segments moving in sequence from the closest to farthest from the base to produce curvilinear motion. Pushing was covered in the last lecture, where all segments move together to produce rectilinear motion. The goal of a throwing movement is usually to maximize the speed of the end of the kinetic link chain. If you are holding a bat or a racket, then this becomes another segment in the chain. To examine the throwing movement, we will use overarm throwing. As shown, the movement starts with the throwing arm behind the body and the subject taking a step forward (a) Finally the hand finishes the throw (g) There are a wide range of variations on the movements, timing, and nature of the motion of each segment. This is what makes a fastball different from a tennis serve, even though both are overarm throwing movements.
