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Título
Short-Term Speed Variability as an Index of Pacing Stochasticity in Athletic Running Events
Autor
Facultad/Centro
Área de conocimiento
Título de la revista
Journal of Functional Morphology and Kinesiology
Número de la revista
2
Datos de la obra
Patrocínio, E.; Renfree, A.; Casado, A.; Hanley, B.; Foster, C.; Boullosa Álvarez, D. A. (2023). Short-Term Speed Variability as an Index of Pacing Stochasticity in Athletic Running Events. Journal of Functional Morphology and Kinesiology, 8(2), https://doi.org/10.3390/JFMK8020086
Editor
MDPI
Fecha
2023
Abstract
[EN] 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.
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