ASSOCIATION OF CHANGES IN SPATIOTEMPORAL VARIABLES AT EACH STEP WITH 100-M SPRINT PERFORMANCE IN PREADOLESCENT SPRINTERS

Authors

Nobuaki Tottori, Ritsumeikan UniversityFollow
Misaki Wakamiya, Ritsumeikan UniversityFollow
Yasuo Shinohara, Ritsumeikan UniversityFollow
Satoshi Fujita, Ritsumeikan UniversityFollow

Category

Other

Document Type

Paper

Abstract

The purpose of this study was to investigate the association of acceleration and changes in spatiotemporal variables at each step with 100-m sprint performance in preadolescent sprinters. Twenty-six boys performed 100-m sprints, and their spatiotemporal variables were measured at each step. Acceleration was negatively correlated with the 100-m sprint time from the 1^st to 21^st step. The rates of change in step frequency were positively correlated with acceleration at the 2^nd and 3^rd step. Posterior to 3^rd step, rates of change in step length were positively correlated with acceleration. The results suggest that the acceleration caused by increase in step frequency and step length up to reaching to the maximal sprint velocity is effective for improving the 100-m sprint time.

Recommended Citation

Tottori, Nobuaki; Wakamiya, Misaki; Shinohara, Yasuo; and Fujita, Satoshi (2018) "ASSOCIATION OF CHANGES IN SPATIOTEMPORAL VARIABLES AT EACH STEP WITH 100-M SPRINT PERFORMANCE IN PREADOLESCENT SPRINTERS," ISBS Proceedings Archive: Vol. 36: Iss. 1, Article 89.
Available at: https://commons.nmu.edu/isbs/vol36/iss1/89