LINEARITY OF THE RATIO OF FORCES-VELOCITY RELATIONSHIP IS NOT RELATED TO INITIAL ACCELERATION PERFORMANCE IN SPRINTING

Authors

Daniel King, Swansea UniversityFollow
Louise Burnie, Swansea UniversityFollow
Ryu Nagahara, National Institute of Fitness and Sports in KanoyaFollow
Neil Bezodis, Swansea UniversityFollow

Category

Athletics

Document Type

Paper

Abstract

The relationship between the linearity of the ratio of forces (RF)-horizontal velocity (v_H) profile and initial acceleration (IA) performance was investigated in trained sprinters. Ground reaction force data from the IA phase of a maximal sprint from a block start were analysed. The coefficient of determination of the linear trendline fitted to four step-averaged values of RF and v_H provided a measure of linearity. Semi-partial correlations (sr) accounting for block phase performance revealed a weak negative relationship between linearity of the RF-v_H profile and performance over the first four steps (sr = -0.11), while mean RF displayed a very strong positive relationship with performance (sr = 0.80). Sprinters and coaches should therefore prioritise the production of a high RF during IA above trying to ensure a consistent decline in RF as velocity increases.

Recommended Citation

King, Daniel; Burnie, Louise; Nagahara, Ryu; and Bezodis, Neil (2021) "LINEARITY OF THE RATIO OF FORCES-VELOCITY RELATIONSHIP IS NOT RELATED TO INITIAL ACCELERATION PERFORMANCE IN SPRINTING," ISBS Proceedings Archive: Vol. 39: Iss. 1, Article 75.
Available at: https://commons.nmu.edu/isbs/vol39/iss1/75