Boullosa, Daniel, Patrocínio, Eliésdras, Renfree, Andrew, Casado, Arturo, Hanley, Brian, and Foster, Carl (2023) Short-Term Speed Variability as an Index of Pacing Stochasticity in Athletic Running Events. Journal of Functional Morphology and Kinesiology, 8 (2). 86.

Preview

PDF (Published Version) - Published Version Available under License Creative Commons Attribution. Download (525kB) | Preview

 

74

Abstract

We aimed to compare differences in performance and pacing variability indices between 5000 m heats and finals during major championships in men and women. Data with 100 m time resolution were used to compare overall pacing variability (standard deviation of 100 m section times, SD; and coefficient of variation, CV%) and short-term pacing variability (root mean square of successive differences between 100 m section times, RMSSD). The changes in performance and pacing indices differed between races and competitions. For instance, the men’s final in Beijing 2008 was quicker than the heat (p < 0.01) while the CV% was reduced (p = 0.03) and RMSSD increased (p < 0.01). For women, the heats and the final exhibited a similar mean time in London 2017 (p = 0.33) but with CV% (p < 0.001) and RMSSD (p < 0.001) showing opposite trends. Individual analyses of men’s and women’s champions revealed highly individual variability metrics. The use of RMSSD can complement overall variability indices for better characterization of pacing stochasticity.

Actions (Repository Staff Only)

Item Control Page