Influence of simulated hypogravity on oxygen uptake during treadmill running.
countermeasures
microgravity
oxygen uptake
spaceflight
supine running
Journal
Physiological reports
ISSN: 2051-817X
Titre abrégé: Physiol Rep
Pays: United States
ID NLM: 101607800
Informations de publication
Date de publication:
05 2021
05 2021
Historique:
received:
05
02
2021
accepted:
14
02
2021
entrez:
6
5
2021
pubmed:
7
5
2021
medline:
11
1
2022
Statut:
ppublish
Résumé
Prolonged exposure to microgravity during spaceflights leads to severe deterioration in the physical performance of astronauts. To understand the effectiveness of existing in-flight daily countermeasures and to plan exercise onboard the International Space Station, we compared supine treadmill running to traditional upright treadmill running on earth. Specifically, we assessed the cardiorespiratory responses to conventional upright running to the responses to supine treadmill running under 0.3 g, 0.6 g, and 1 g of body weight in younger (20-30 years, n = 14, 8 females) and older healthy adults (50-60 years, n = 12, 6 females). Maximal cardiorespiratory capacity was additionally evaluated by performing an incremental running protocol on each treadmill. Maximum speed was greater for 0.3 g and 0.6 g in supine than for upright running (18.5 km/h (1.1) and 15.9 (3.1) vs 13.2 (2.4) p < 0.001). In contrast, maximum oxygen uptake (
Identifiants
pubmed: 33955197
doi: 10.14814/phy2.14787
pmc: PMC8100405
doi:
Types de publication
Journal Article
Research Support, Non-U.S. Gov't
Langues
eng
Sous-ensembles de citation
IM
Pagination
e14787Informations de copyright
© 2021 The Authors. Physiological Reports published by Wiley Periodicals LLC on behalf of The Physiological Society and the American Physiological Society.
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