Pacing and Body Weight Changes During a Mountain Ultramarathon: Sex Differences and Performance
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Otros documentos de la autoría: MARTINEZ-NAVARRO, IGNACIO; Montoya-Vieco, Antonio; Collado-Boira, Eladio; Hernando, Barbara; Hernando, Carlos
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Título
Pacing and Body Weight Changes During a Mountain Ultramarathon: Sex Differences and PerformanceAutoría
Fecha de publicación
2021Editor
Sciendo; Academy of Physical Education in KatowiceISSN
1899-7562Cita bibliográfica
MARTÍNEZ-NAVARRO, Ignacio, et al. Pacing and Body Weight Changes During a Mountain Ultramarathon: Sex Differences and Performance. Journal of Human Kinetics, 2021, vol. 80.Tipo de documento
info:eu-repo/semantics/articleVersión de la editorial
http://www.johk.pl/Versión
info:eu-repo/semantics/publishedVersionPalabras clave / Materias
Resumen
The study was aimed at comparing pacing adopted by males and females in a 107-km mountain ultramarathon
and assessing whether pacing-related variables were associated with intracompetition body weight changes and
... [+]
The study was aimed at comparing pacing adopted by males and females in a 107-km mountain ultramarathon
and assessing whether pacing-related variables were associated with intracompetition body weight changes and
performance. Forty-seven athletes (29 males; 18 females) were submitted to a cardiopulmonary exercise test before the
race. Athletes were also weighted before the start of the race, at three midpoints (33 km, 66 km and 84 km) and after the
race. Pacing was analyzed using absolute and relative speeds and accelerometry-derived sedentary time spent during
the race. Results showed that females spent less sedentary time (4.72 ± 2.91 vs. 2.62 ± 2.14%; p = 0.035; d = 0.83) and
displayed a smaller body weight loss (3.01 ± 1.96 vs. 4.37 ± 1.77%; p = 0.048; d = 0.77) than males. No significant sex
differences were revealed for speed variability, absolute and relative speed. In addition, finishing time was correlated
with: speed variability (r = 0.45; p = 0.010), index of pacing (r = -0.63; p < 0.001) and sedentary time (r = 0.64; p <
0.001). Meanwhile, intracompetition body weight changes were related with both the absolute and relative speed in the
first and the last race section. These results suggest that females, as compared with males, take advantage of shorter
time breaks at aid stations. Moreover, performing a more even pacing pattern may be positively associated with
performance in mountain ultramarathons. Finally, intracompetition body weight changes in those races should be
considered in conjunction with running speed fluctuations. [-]
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Journal of Human Kinetics volume 80/2021Derechos de acceso
© Editorial Committee of Journal of Human Kinetics
info:eu-repo/semantics/openAccess
info:eu-repo/semantics/openAccess
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