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Age-related changes in ultra-triathlon performances
Knechtle B., Rüst C. Alexander, Knechtle P., Rosemann T., Lepers R.
Extreme Physiology & Medicine 1, 1 (2012) 5 - http://www.hal.inserm.fr/inserm-00752141
Age-related changes in ultra-triathlon performances
Beat Knechtle () 1, 2, Christoph Rüst2, Patrizia Knechtle1, Thomas Rosemann2, Romuald Lepers3
1 :  Gesundheitszentrum St. Gallen
Gesundheitszentrum St. Gallen
Vadianstrasse 26, St., Gallen, 9011
2 :  Institute of General Practice and Health Services Research
University of Zurich
Rämistrasse 71, Zurich, 8006
3 :  Cognition, Action, et Plasticité Sensorimotrice
INSERM : U1093 – Université de Bourgogne
Faculté des Sciences du Sport (UFR STAPS) - BP 27877 - 21078 Dijon
The age-related decline in performance has been investigated in swimmers, runners and triathletes. No study has investigated the age-related performance decline in ultra-triathletes. The purpose of this study was to analyse the age-related declines in swimming, cycling, running and overall race time for both Triple Iron ultra-triathlon (11.4-km swimming, 540-km cycling and 126.6-km running) and Deca Iron ultra-triathlon (38-km swimming, 1,800-km cycling and 420-km running).
The age and performances of 423 male Triple Iron ultra-triathletes and 119 male Deca Iron ultra-triathletes were analysed from 1992 to 2010 using regression analyses and ANOVA.
The mean age of the finishers was significantly higher for Deca Iron ultra-triathletes (41.3 ± 3.1 years) compared to a Triple Iron ultra-triathletes (38.5 ± 3.3 years) (P < 0.05). For both ultra-distances, the fastest overall race times were achieved between the ages of 25 and 44 years. Deca Iron ultra-triathletes achieved the same level of performance in swimming and cycling between 25 and 54 years of age.
The magnitudes of age-related declines in performance in the three disciplines of ultra-triathlon differ slightly between Triple and Deca Iron ultra-triathlon. Although the ages of Triple Iron ultra-triathletes were on average younger compared to Deca Iron ultra-triathletes, the fastest race times were achieved between 25 and 44 years for both distances. Further studies should investigate the motivation and training of ultra-triathletes to gain better insights in ultra-triathlon performance.
Sciences du Vivant/Médecine humaine et pathologie/Physiologie

Articles dans des revues avec comité de lecture
Extreme Physiology & Medicine

swimming – cycling – running – ultra-endurance
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