Kinematic and temporal changes of slide step deliveries of baseball pitchers due to technical training aiming to shorten the motion time

The purpose of this research was to evaluate the motion and time change by training aiming at shortening the slide step delivery time of baseball pitchers. Six collegiate baseball pitchers were participated in the experiment as participants. They performed three fastball pitches with full effort (both as fast and quick as possible) by slide step deliveries before (Pre) and after (Post) one-month training period. For the phase time, there were significant differences between Pre and Post in the Phase 1 and total. There were no significant differences in Phase 2 and Phase 3. The lift height of the knee of the stride leg showed no significant difference. Therefore, to shorten the time of stride phase without decrease the lift height of the knee of the stride leg is necessary to shorten the slide step delivery time.
© Copyright 2018 ISBS Proceedings Archive. Northern Michigan University. Published by International Society of Biomechanics in Sports. All rights reserved.

Subjects: biomechanics movement baseball technique training
Notations: technical and natural sciences sport games
Published in: ISBS Proceedings Archive
Editors: P. A. Hume, J. Alderson, B. Wilson
Published: Auckland International Society of Biomechanics in Sports 2018
Volume: 36
Issue: 1
Pages: 77-80
Document types: congress proceedings
electronical journal
Language: English
Level: advanced