Case studies in Physiology: Analysis of the World record time for combined father and son marathon.
Fiche publication
Date publication
janvier 2020
Journal
Journal of applied physiology (Bethesda, Md. : 1985)
Auteurs
Membres identifiés du Cancéropôle Est :
Pr LEPERS Romuald
Tous les auteurs :
Louis JB, Bontemps B, Lepers R
Lien Pubmed
Résumé
The aim of this study was to examine the physiological profiles and the pacing strategies of the father (59 years old) and son (34 years old) who broke the World record time (4:59:22; father : 2:27:52, son : 2:31:30) for combined father and son marathon in 2019. Oxygen uptake (VO), heart rate (HR), ventilation (VE), blood lactate concentration (La), and running economy (RE) were measured during treadmill-running tests. The total distance of the marathon was divided into 8 sections of 5 km and 1 last section of 2.195 km, and the relative average running velocity on each section was calculated individually. VO, HR, VE, La, were 65.4 ml.kg.min, 165 beats.min, 115 l.min, 5.7 mmol.l for the father and 66.9 ml.kg.min, 181 beats.min, 153 l.min, 11.5 mmol.l for the son, respectively. At 17 km.h, RE was 210 ml.kg.km for the father and 200 ml.kg.km for the son, and % VO sustainedwas 90.9% for the father and 84.5% for the son, respectively. The father maintained an even running velocity during the marathon (running velocity CV < 1%) while the son ran the second half-marathon 7% slower than the first one, and his running velocity markedly dropped from the 35 kilometer. Father and son who broke the World record time for combined father and son marathonhad a similar level of performance but their physiological profiles and pacing strategies during the marathon were different. A more even speed for the son could help them to improve their own record in a near future.
Mots clés
Aging, Endurance, Marathon, Running, VO2max
Référence
J. Appl. Physiol.. 2020 Jan 9;: