Effect of pre-cooling by cold-water immersion on continuous sweat conductivity kinetics during submaximal exercise in the heat
Ferrari A, Sorg M, Berthoin S, Rance M, Dupuy A, Garnier JP, Baquet G, Ratel S
Journal of thermal biology · 0 citas
Cómo se estudió
- Diseño
- Ensayo controlado aleatorizado (indexado por PubMed)
- Estudiado en
- Personas
- Resultado principal
- Marcadores de salud y funcionamiento
Quién lo pagó
- Financiación
- Financiación independiente
- Universidad u hospital
- Université de Lille
- Universidad u hospital
- Université Clermont-Auvergne
Según 2 financiadores declarados.
Publicación
- Publicado
- 2026-08-01 · J Therm Biol · vol. 140 · pág. 104554
- Editorial
- Elsevier BV
- Citado
- 0 citas · más que el 64% de estudios similares · 0.0× el promedio de su campo
- Referencias
- 42 trabajos
- Acceso
- De pago
- Áreas de investigación
- Thermoregulation and physiological responses · Cardiovascular and exercise physiology · Sports Performance and Training
- Palabras clave
- cold water immersion, precooling, body heat storage, sweat rate, core body temperature, skin temperature, endurance cyclists
- MeSH
- sweat, humans, exercise, immersion, body temperature regulation, sweating, adult, male, cold temperature, hot temperature, young adult
8 autores
- Antoine Ferrari🇫🇷 · autor de correspondenciaUniversité de Lille; Unité de Recherche Pluridisciplinaire Sport, Santé, Société
- Marine Sorg
- Serge Berthoin🇫🇷Université de Lille; Unité de Recherche Pluridisciplinaire Sport, Santé, Société
- Mélanie Rance
- Alexis Dupuy🇫🇷Université Clermont Auvergne; Adaptations Métaboliques à l'Exercice en conditions Physiologiques et Pathologiques
- Jean-Philippe Garnier🇫🇷Inserm; Centre Hospitalier Universitaire de Lille
- Georges Baquet🇫🇷Université de Lille; Unité de Recherche Pluridisciplinaire Sport, Santé, Société
- Sébastien Ratel🇫🇷Adaptations Métaboliques à l'Exercice en conditions Physiologiques et Pathologiques
Resumen
El texto original del estudio, en el idioma en que se publicó.
Cold-water immersion (CWI) is widely used as a pre-cooling strategy to improve exercise tolerance in hot environments, yet its effects on the temporal organization of sweating remain poorly understood. This study investigated the effects of whole-body CWI on sweating dynamics during submaximal exercise in the heat and the associated changes in body temperature and body heat storage. Fifteen endurance-trained participants completed two randomized experimental trials consisting of 45 min of cycling in a hot environment (35 °C, 30 % relative humidity), either following whole-body CWI or without pre-cooling. Core temperature, skin temperature, whole-body sweat rate (WBSR), and body heat storage were assessed. Sweating dynamics were continuously monitored using a wearable microfluidic device providing real-time measurements of conductivity-derived sweat sodium chloride concentration equivalent ([NaCl] equivalent). CWI markedly reduced body heat storage (-10.84 ± 1.33 vs. 0.06 ± 0.26 W m-2, p -1, p -2, p < 0.001). These findings indicate that CWI delays the appearance of detectable sweating through a transient reduction in body heat storage at exercise onset. As body heat storage progressively increased during exercise, detectable sweating occurred with similar conductivity-derived sweat [NaCl] equivalent changes despite the delayed onset. Continuous sweat monitoring provided novel insight into the temporal characteristics of sweating responses following pre-cooling.
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