The Impact of Training on the Loss of Cardiorespiratory Fitness in Aging Masters Endurance Athletes.
Détails
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Accès restreint UNIL
Etat: Public
Version: Final published version
Licence: CC BY 4.0
ID Serval
serval:BIB_AB05FF3CB241
Type
Article: article d'un périodique ou d'un magazine.
Sous-type
Synthèse (review): revue aussi complète que possible des connaissances sur un sujet, rédigée à partir de l'analyse exhaustive des travaux publiés.
Collection
Publications
Institution
Titre
The Impact of Training on the Loss of Cardiorespiratory Fitness in Aging Masters Endurance Athletes.
Périodique
International journal of environmental research and public health
ISSN
1660-4601 (Electronic)
ISSN-L
1660-4601
Statut éditorial
Publié
Date de publication
03/09/2022
Peer-reviewed
Oui
Volume
19
Numéro
17
Pages
11050
Langue
anglais
Notes
Publication types: Journal Article ; Review
Publication Status: epublish
Publication Status: epublish
Résumé
Elite masters endurance athletes are considered models of optimal healthy aging due to the maintenance of high cardiorespiratory fitness (CRF) until old age. Whereas a drop in VO <sub>2</sub> max in masters athletes has been broadly investigated, the modifying impact of training still remains a matter of debate. Longitudinal observations in masters endurance athletes demonstrated VO <sub>2</sub> max declines between -5% and -46% per decade that were closely related to changes in training volume. Here, using regression analyses, we show that 54% and 39% of the variance in observed VO <sub>2</sub> max decline in male and female athletes, respectively is explained by changes in training volume. An almost linear VO <sub>2</sub> max decrease was observed in studies on young and older athletes, as well as non-athletes, starting a few days after training cessation, with a decline of as much as -20% after 12 weeks. Besides a decline in stroke volume and cardiac output, training cessation was accompanied by considerable reductions in citrate synthase and succinate dehydrogenase activity (reduction in mitochondrial content and oxidative capacity). This reduction could largely be rescued within similar time periods of training (re)uptake. It is evident that training reduction or cessation leads to a considerably accelerated VO <sub>2</sub> max drop, as compared to the gradual aging-related VO <sub>2</sub> max decline, which can rapidly nullify many of the benefits of preceding long-term training efforts.
Mots-clé
Aging, Athletes, Cardiorespiratory Fitness, Female, Humans, Male, Nutritional Status, Oxygen Consumption, Physical Endurance, Stroke Volume, aerobic exercise capacity, aging, exercise training, training (re)uptake, training cessation
Pubmed
Web of science
Open Access
Oui
Création de la notice
20/09/2022 14:34
Dernière modification de la notice
27/09/2022 6:40