Sex difference in race performance and age of peak performance in the Ironman Triathlon World Championship from 1983 to 2012

Abstract : Background
The fastest Ironman race times in 'Ironman Hawaii' were achieved in very recent years. This study investigated the change in sex difference in both race performance and the age of peak performance across years in the top ten athletes for split disciplines and overall race time in the 'Ironman Hawaii' between 1983 and 2012.
Methods
Changes in split times, overall race times, and age of athletes across years for the top ten overall and the fastest swimmers, cyclists, and runners were investigated using regression analyses and analyses of variance.
Results
Between 1983 and 2012, the overall top ten men and women finishers improved their swimming (only men), cycling, running, and overall race times. The sex difference in overall race time decreased significantly (p = 0.01) from 15.2% to 11.3% across time. For the split disciplines, the sex difference remained unchanged (p > 0.05) for swimming (12.5 ± 3.7%) and cycling (12.5 ± 2.7%) but decreased for running from 13.5 ± 8.1% to 7.3 ± 2.9% (p = 0.03). The time performance of the top ten swimmers remained stable (p > 0.05), while those of the top ten cyclists and top ten runners improved (p < 0.01). The sex difference in performance remained unchanged (p > 0.05) in swimming (8.0 ± 2.4%), cycling (12.7 ± 1.8%), and running (15.2 ± 3.0%). Between 1983 and 2012, the age of the overall top ten finishers and the fastest swimmers, cyclists, and runners increased across years for both women and men (p < 0.01).
Conclusions
To summarize, for the overall top ten finishers, the sex difference decreased across years for overall race time and running, but not for swimming and cycling. For the top ten per discipline, the sex difference in performance remained unchanged. The athletes improved their performances across years although the age of peak performance increased.
Type de document :
Article dans une revue
Extreme Physiology & Medicine, 2012, 1 (1), pp.15
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http://www.hal.inserm.fr/inserm-00779241
Contributeur : Romuald Lepers <>
Soumis le : lundi 21 janvier 2013 - 21:08:20
Dernière modification le : mardi 22 janvier 2013 - 13:59:29

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Christoph Rüst, Beat Knechtle, Thomas Rosemann, Romuald Lepers. Sex difference in race performance and age of peak performance in the Ironman Triathlon World Championship from 1983 to 2012. Extreme Physiology & Medicine, 2012, 1 (1), pp.15. 〈inserm-00779241〉

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