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Relationship Between Kinetics Of Countermovement Jump And Proximal Mechanics Of Collegiate Baseball Pitching, Motoki Sakurai
Relationship Between Kinetics Of Countermovement Jump And Proximal Mechanics Of Collegiate Baseball Pitching, Motoki Sakurai
Master's Theses
Purpose: To identify how countermovement jump (CMJ) kinetics influence kinematics and momentum of the baseball pitching motion with a focus on lower body and proximal movement. Methods: Nineteen Division I collegiate pitchers (age = 19.9 ± 1.5 years; height = 1.86 ± 0.06 m; weight = 90.7 ± 13.8 kg) performed a bilateral CMJ test and threw 5 strike fastballs from the stretch with a slide step on a custom-made pitching mound built for a laboratory setting. A 3D motion capture system tracked whole-body kinematics at 240 Hz from 29 reflective markers. Two force plates recorded ground reaction forces (GRFs) …