Determining Validity of Critical Power Estimated Using a Three-Minute All-Out Test in Hot Environments
| Autor: | Ching Feng Cheng, Yu Chi Kuo, Yu Hsuan Kuo |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Male
medicine.medical_specialty Hot Temperature fitness test Health Toxicology and Mutagenesis Article Incremental exercise Oxygen Consumption exercise intensity Internal medicine Exercise performance medicine Humans Power output Exercise Physiological stress Mathematics Alternative methods Public Health Environmental and Occupational Health VO2 max Bicycling Critical power Exercise intensity Cardiology Exercise Test Medicine critical threshold heat |
| Zdroj: | International Journal of Environmental Research and Public Health Volume 18 Issue 17 International Journal of Environmental Research and Public Health, Vol 18, Iss 9193, p 9193 (2021) |
| ISSN: | 1660-4601 |
| DOI: | 10.3390/ijerph18179193 |
| Popis: | The aim of this study was to investigate the effects of heat on the validity of end-test power (EP) derived from a 3-min all-out test (3MT), which is considered as an alternative method for determining the conventional critical power. Twelve male cyclists were required to perform incremental exercise tests (IET) and 3MTs in both high temperature (HT 35 °C) and thermoneutral temperature (NT 22 °C) environments. Maximal oxygen uptake (VO2max), and first and second ventilatory thresholds (VT1 and VT2, respectively) against the power output (wVO2max, wVT1, and wVT2) were measured during IETs. EP was recorded during the 3MTs. A significant correlation was observed between wVT2 and EP under NT (r = 0.674, p < 0.05) and under HT (r = 0.672, p < 0.05). However, wVO2max, wVT1, wVT2, and EP were significantly higher in NT than in HT (p < 0.05). In conclusion, although the physiological stress induced by HT might impair exercise performance, the EP derived from 3MT can validly estimate wVT2 under HT conditions. |
| Databáze: | OpenAIRE |
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