Journal article
Differences in Rotational Kinetics and Kinematics for Professional Baseball Pitchers With Higher Versus Lower Pitch Velocities
Journal of applied biomechanics, Vol.36(2), pp.68-75
04/01/2020
DOI: 10.1123/jab.2019-0235
PMID: 32143191
Abstract
Pitch velocity (PV) is important for pitching success, and the pelvis and trunk likely influence pitch performance. The purposes of this study were to examine the differences in pelvis and trunk kinetics and kinematics in professional baseball pitchers who throw at lower versus higher velocities (HVPs) and to examine the relationships among pelvis and trunk kinetics and kinematics and PV during each phase of the pitch delivery. The pitch velocity, pelvis and trunk peak angular velocities, kinetic energies and torques, and elbow and shoulder loads were compared among HVPs (n = 71; PV >= 40.2 m/s) and lower velocities pitchers (n = 78; PV < 39.8 m/s), as were trunk and pelvis rotation, flexion, and obliquity among 7 phases of the pitching delivery. Relationships among the kinetic and kinematic variables and PVs were examined. Higher velocity pitchers achieved greater upper trunk rotation at hand separation (+7.2 degrees, P < .001) and elbow extension (+ 5.81 degrees, P = .002) and were able to generate greater upper trunk angular velocities (+36.6 m/s, P = .01) compared with lower velocity pitcher. Trunk angular velocity (r = .29) and upper trunk rotation at hand separation (r = .18) and foot contact (r = .17) were weakly related to PV. Therefore, HVPs rotate their upper trunk to a greater degree during the early phases of the pitching motion and subsequently generate greater trunk angular velocities and PV.
Details
- Title: Subtitle
- Differences in Rotational Kinetics and Kinematics for Professional Baseball Pitchers With Higher Versus Lower Pitch Velocities
- Creators
- Micheal J. Luera - Oklahoma State UniversityBrittany Dowling - Motus Global.Tyler W. D. Muddle - Oklahoma State UniversityNathaniel D. M. Jenkins - Oklahoma State University
- Resource Type
- Journal article
- Publication Details
- Journal of applied biomechanics, Vol.36(2), pp.68-75
- DOI
- 10.1123/jab.2019-0235
- PMID
- 32143191
- NLM abbreviation
- J Appl Biomech
- ISSN
- 1065-8483
- eISSN
- 1543-2688
- Publisher
- Human Kinetics Publ Inc
- Number of pages
- 8
- Grant note
- 18AIREA33960528 / American Heart Association P20GM109097 / Center for Integrative Research on Childhood Adversity HR19-028 / Oklahoma Center for the Advancement of Science and Technology National Strength and Conditioning Association Foundation
- Language
- English
- Date published
- 04/01/2020
- Academic Unit
- Center for Social Science Innovation; Injury Prevention Research Center; Health, Sport, and Human Physiology
- Record Identifier
- 9984259394102771
Metrics
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