Physiological stress imposed by the hot environment during a HIIT session
Introduction: Constant increases in environmental temperature have a direct impact on daily activities, such as, for example, physical exercise. Objective: To evaluate the physiological stress imposed by the hot environment compared to the temperate environment during a HIIT session. Materials and M...
| Autores: | , , , , , |
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| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2024 |
| País: | Brasil |
| Institución: | Instituto Brasileiro de Ensino e Pesquisa em Fisiologia do Exercício (IBPEFEX) |
| Repositorio: | Revista Brasileira de Prescrição e Fisiologia do Exercício |
| Idioma: | portugués |
| OAI Identifier: | oai:ojs.www.rbpfex.com.br:article/2863 |
| Acceso en línea: | https://www.rbpfex.com.br/index.php/rbpfex/article/view/2863 |
| Access Level: | acceso abierto |
| Palabra clave: | High-intensity interval training Heat-shock response Exercise Health Entrenamiento de intervalos de alta intensidad Respouesta al choque térmico Ejercicio físico Salud Allenamento a intervalli ad alta intensità Risposta allo shock termico Esercizio fisico Salute Treinamento intervalado de alta intensidade Resposta ao choque térmico Exercício físico Saúde Treino intervalado de alta intensidade |
| Sumario: | Introduction: Constant increases in environmental temperature have a direct impact on daily activities, such as, for example, physical exercise. Objective: To evaluate the physiological stress imposed by the hot environment compared to the temperate environment during a HIIT session. Materials and Methods: 10 male amateur cyclists (35.5 ±7.4 years, 60.4 ±4.3 mL.kg-1.min-1), made 4 visits to the laboratory. 1st visit: sample characterization; 2nd visit: familiarization of the sample with the protocol; 3rd/4th visits: the volunteers were randomly evaluated in two conditions, Control (Tenvironment: 22.9 ±0.9ºC; RH: 70.1 ±9.9%) and Hot (Tenvironment: 32.2 ±0. 5ºC; RH: 63.9 ±4.5%). HIIT session: After a 5min/15W warm-up, a HIIT protocol was started with 4 identical blocks of 1min at 90% Pmax and 3min recovery at 50% Pmax. Internal (Tgastrointestinal), body (Tbody) and skin (Tskin) temperatures, heart rate (HR), subjective perception of exertion (RPE), thermal comfort (CT), thermal sensation (ST) and the physiological stress index (IEF). Data were analyzed using Two-Way ANOVA, Bonferroni post hoc, Student's t test and Pearson's correlation. Mean ± SD (α=5%). Ethics: 852796618.1.0000.5153. Results: In relation to the control environment, higher values of Tgastrointestinal, Tbody, Tskin, HR, PSE, CT, ST, IEF and a positive correlation between physiological and perceptual variables were observed. Conclusion: The physiological stress imposed by the hot environment was greater during a HIIT session. |
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