Authors
MA Urbin, Glenn S Fleisig, Asheber Abebe, James R Andrews
Publication date
2013/2
Journal
The American journal of sports medicine
Volume
41
Issue
2
Pages
336-342
Publisher
SAGE Publications
Description
Background
A baseball pitcher’s ability to maximize ball speed while avoiding shoulder and elbow injuries is an important determinant of a successful career. Pitching injuries are attributed to microtrauma brought about by the repetitive stress of high-magnitude shoulder and elbow kinetics.
Hypothesis
Over a number of pitches, variations in timing peak angular velocities of trunk segment rotations will be significantly associated with ball speed and upper extremity kinetic parameters.
Study Design
Descriptive laboratory study.
Methods
Kinematic and kinetic data were derived from 9 to 15 fastball pitches performed by 16 active, healthy collegiate (n = 8) and professional (n = 8) pitchers via 3-dimensional motion capture (240 Hz). Each pitch was decomposed into 4 phases corresponding to the time between peak angular velocities of sequential body segment rotations. Four mixed models were used to evaluate which …
Scholar articles
MA Urbin, GS Fleisig, A Abebe, JR Andrews - The American journal of sports medicine, 2013