Methods to match high-intensity interval exercise intensity in hypoxia and normoxia – A pilot study
| Autor: | Yanchun Li, Jia Li, Muhammed M. Atakan, Zhenhuan Wang, Yang Hu, Mostafa Nazif, Navabeh Zarekookandeh, Henry Zhihong Ye, Jujiao Kuang, Alessandra Ferri, Aaron Petersen, Andrew Garnham, David J. Bishop, Olivier Girard, Yaru Huang, Xu Yan |
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| Jazyk: | angličtina |
| Rok vydání: | 2022 |
| Předmět: | |
| Zdroj: | Journal of Exercise Science & Fitness, Vol 20, Iss 1, Pp 70-76 (2022) |
| Druh dokumentu: | article |
| ISSN: | 1728-869X 19545959 |
| DOI: | 10.1016/j.jesf.2021.12.003 |
| Popis: | Background/Objectives: The aim of this study was to compare high-intensity interval exercise (HIIE) sessions prescribed on the basis of a maximal value (peak power output, PPO) and a submaximal value (lactate threshold, LT) derived from graded exercise tests (GXTs) in normoxia and hypoxia. Methods: A total of ten males (aged 18–37) volunteered to participate in this study. The experimental protocol consisted of a familiarization procedure, two GXTs under normoxia (FiO2 = 0.209) and two GXTs under normobaric hypoxia (FiO2 = 0.140), and three HIIE sessions performed in a random order. The HIIE sessions included one at hypoxia (HY) and two at normoxia (one matched for the absolute intensity in hypoxia, designated as NA, and one matched for the relative intensity in hypoxia, designated as NR). Results: The data demonstrated that there was significant lower peak oxygen uptake (V̇O2peak), peak heart rate (HRpeak), PPO, and LT derived from GXTs in hypoxia, with higher respiratory exchange ratio (RER), when compared to those from GXTs performed in normoxia (p |
| Databáze: | Directory of Open Access Journals |
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