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Relationship between stride length and maximal ball velocity in collegiate baseball pitchers.
| Content Provider | Europe PMC |
|---|---|
| Author | Yanagisawa, Osamu Taniguchi, Hidenori |
| Copyright Year | 2020 |
| Abstract | [Purpose] To evaluate the relationship between stride length during a pitch and maximalball velocity and define the determinants of stride length in collegiate baseballpitchers. [Participants and Methods] Eighteen collegiate baseball pitchers participated inthis study. Using a standard tape measure, the distance between each participant’s legswas measured after maximal abduction of both hip joints in a standing position. Thepitchers threw fastballs on an indoor pitching mound at an official pitching distance. Thethrowing motion was recorded with four high-speed video cameras (240 Hz), while the ballvelocity was measured using a radar gun. The stride length at foot contact was calculatedat the maximal ball velocity using a three-dimensional motion analysis system. [Results]The maximal ball velocity (mean 129.8 km/h) had a significant positive correlation withthe absolute stride length during a pitch (r=0.55), but no correlation with the relativestride length (% body height, % lower extremity length, and % maximal open legs’ width).Stride length during a pitch did not significantly correlate with the pitcher’s bodyheight, lower extremity length, and maximal open legs’ width. [Conclusion] A longer stridelength contributes to a higher ball velocity in collegiate baseball pitchers. |
| ISSN | 09155287 |
| Volume Number | 32 |
| PubMed Central reference number | PMC7509165 |
| Issue Number | 9 |
| PubMed reference number | 32982054 |
| Journal | Journal of Physical Therapy Science [J Phys Ther Sci] |
| e-ISSN | 21875626 |
| DOI | 10.1589/jpts.32.578 |
| Language | English |
| Publisher | The Society of Physical Therapy Science |
| Publisher Date | 2020-09-01 |
| Access Restriction | Open |
| Rights License | This is an open-access article distributed under the terms of the CreativeCommons Attribution Non-Commercial No Derivatives (by-nc-nd) License. (CC-BY-NC-ND 4.0:https://creativecommons.org/licenses/by-nc-nd/4.0/) 2020©by the Society of Physical Therapy Science. Published by IPECInc. |
| Subject Keyword | Hip function Biomechanics Baseball pitching |
| Content Type | Text |
| Resource Type | Article |
| Subject | Physical Therapy, Sports Therapy and Rehabilitation |
