The role of pelvis and thorax rotation velocity in baseball pitching

The role of pelvis and thorax rotation velocity in baseball pitching

van der Graaff, E (Vrije Universiteit Amsterdam)
Hoozemans, M (Koninklijke Nederlandse Baseball en Softball Bond (KNBSB))
Nijhoff, M. (Koninklijke Nederlandse Baseball en Softball Bond (KNBSB))
Davidson, M (Manual Fysion)
Hoezen, M (Manual Fysion)
Veeger, H.E.J. (TU Delft Biomechanical Engineering; TU Delft Biomechatronics & Human-Machine Control; Vrije Universiteit Amsterdam)

Biomechanical Engineering

2016

The objective of the present study was to examine the relative timing of pelvis and thorax rotations in achieving high throwing velocities in baseball pitching. During the preseason, a kinematic analysis was performed on eight pitchers. Peak angular velocities of the pelvis and thorax were determined and separation, defined as the time between the moments of maximal rotation velocity of the pelvis and thorax, was calculated. By themselves, maximal pelvis and thorax rotation velocity were not associated with throwing velocity. Separation was positively and significantly associated with throwing velocity. Results indicate that the relative timing of pelvis and thorax peak rotation velocity in pitching fastballs in baseball is a determinant of throwing velocity in skilled pitchers.

biomechanics
kinematics
performance
pitching
separation

http://resolver.tudelft.nl/uuid:74d0ddde-89bf-49db-99b2-7b9f1e26c3cf

International Society of Biomechanics in Sports, Konstanz, Germany

ISBS - Conference Proceedings Archive: 34rd International Conference on Biomechanics in Sports, 34

34th International Conference of Biomechanics in Sports, 2016-07-18 → 2016-07-22, Tsukuba, Japan

Institutional Repository

conference paper

© 2016 E van der Graaff, M Hoozemans, M. Nijhoff, M Davidson, M Hoezen, H.E.J. Veeger