dc.contributor.author | Ruiz Moreno, Carlos | |
dc.contributor.author | Gutiérrez Hellín, Jorge | |
dc.contributor.author | González García, Jaime | |
dc.contributor.author | Giráldez Costas, Verónica | |
dc.contributor.author | Brito de Souza, Diego | |
dc.contributor.author | Del Coso, Juan | |
dc.date.accessioned | 2021-08-24T09:45:15Z | |
dc.date.available | 2021-08-24T09:45:15Z | |
dc.date.issued | 2021 | |
dc.identifier.issn | 1746-1391 | spa |
dc.identifier.uri | http://hdl.handle.net/10641/2392 | |
dc.description.abstract | Aim: The objective of this current research was to compare fat oxidation rates during an incremental cycling exercise test in a temperate vs. hot environment.
Methods: Twelve healthy young participants were recruited for a randomised crossover experimental design. Each participant performed a VO2max test in a thermoneutral environment followed by two cycling ramp test trials, one in a temperate environment (18.3°C) and another in a hot environment (36.3°C). The ramp test consisted of 3-min stages of increasing intensity (+10% of VO2max) while gas exchange, heart rate and perceived exertion were measured.
Results: During exercise, there was a main effect of the environment temperature on fat oxidation rate (F = 9.35, P = 0.014). The rate of fat oxidation was lower in the heat at 30% VO2max (0.42 ± 0.15 vs.0.37 ± 0.13 g/min; P = 0.042), 60% VO2max (0.37 ± 0.27 vs.0.23 ± 0.23 g/min; P = 0.018) and 70% VO2max (0.22 ± 0.26 vs.0.12 ± 0.26 g/min; P = 0.007). In addition, there was a tendency for a lower maximal fat oxidation rate in the heat (0.55 ± 0.2 vs.0.48 ± 0.2 g/min; P = 0.052) and it occurred at a lower exercise intensity (44 ± 14 vs.38% ± 8% VO2max; P = 0.004). The total amount of fat oxidised was lower in the heat (5.8 ± 2.6 vs 4.6 ± 2.8 g; P = 0.002). The ambient temperature also produced main effects on heart rate (F = 15.18, P = 0.005) and tympanic temperature (F = 25.23, P = 0.001) with no effect on energy expenditure (F = 0.01, P = 0.945).
Conclusion: A hot environment notably reduced fat oxidation rates during a ramp exercise test. Exercising in the heat should not be recommended for those individuals seeking to increase fat oxidation during exercise. | spa |
dc.language.iso | eng | spa |
dc.publisher | European Journal of Sport Science | spa |
dc.rights | Atribución-NoComercial-SinDerivadas 3.0 España | * |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/3.0/es/ | * |
dc.subject | Adiposity | spa |
dc.subject | Indirect calorimetry | spa |
dc.subject | Body temperature | spa |
dc.subject | Substrate oxidation | spa |
dc.subject | Body fat loss | spa |
dc.title | Effect of ambient temperature on fat oxidation during an incremental cycling exercise test. | spa |
dc.type | journal article | spa |
dc.type.hasVersion | SMUR | spa |
dc.rights.accessRights | open access | spa |
dc.description.extent | 375 KB | spa |
dc.identifier.doi | 10.1080/17461391.2020.1809715 | spa |
dc.relation.publisherversion | https://www.tandfonline.com/doi/abs/10.1080/17461391.2020.1809715?journalCode=tejs20 | spa |