A 32-day long fieldwork in Antarctica improves heat tolerance during physical exercise

Detalhes bibliográficos
Autor(a) principal: MARTINS,YGOR A.T.
Data de Publicação: 2022
Outros Autores: PASSOS,RENATA L.F., MARQUES,ALICE L., GONÇALVES,DAWIT A.P., MENDES,THIAGO T., NÚÑEZ-ESPINOSA,CRISTIAN, RODRIGUES,LUIZ O.C., WANNER,SAMUEL P., MORAES,MICHELE M., ARANTES,ROSA M.E., SOARES,DANUSA D.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Anais da Academia Brasileira de Ciências (Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652022000200701
Resumo: Abstract We evaluated the influence of a 32-day camping in Antarctica on physical performance and exercise-induced thermoregulatory responses. In Brazil, before and after the Antarctic camping, the volunteers performed an incremental exercise at temperate conditions and, two days later, an exercise heat stress protocol (45-min running at 60% of maximum aerobic speed, at 31°C and 60% of relative humidity). In Antarctica, core temperature was assessed on a day of fieldwork, and average values higher than 38.5°C were reported. At pre- and post-Antarctica, physiological (whole-body and local sweat rate, number of active sweat glands, sweat gland output, core and skin temperatures) and perceptual (thermal comfort and sensation) variables were measured. The Antarctic camping improved the participants’ performance and induced heat-related adaptations, as evidenced by sweat redistribution (lower in the chest but higher in grouped data from the forehead, forearm, and thigh) and reduced skin temperatures in the forehead and chest during the exercise heat stress protocol. Notwithstanding the acclimatization, the participants did not report differences of the thermal sensation and comfort. In conclusion, staying in an Antarctic camp for 32 days improved physical performance and elicited physiological adaptations to heat due to the physical exertion-induced hyperthermia in the field.
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spelling A 32-day long fieldwork in Antarctica improves heat tolerance during physical exerciseacclimatizationcoldperformancepolar medicinesweatingtemperatureAbstract We evaluated the influence of a 32-day camping in Antarctica on physical performance and exercise-induced thermoregulatory responses. In Brazil, before and after the Antarctic camping, the volunteers performed an incremental exercise at temperate conditions and, two days later, an exercise heat stress protocol (45-min running at 60% of maximum aerobic speed, at 31°C and 60% of relative humidity). In Antarctica, core temperature was assessed on a day of fieldwork, and average values higher than 38.5°C were reported. At pre- and post-Antarctica, physiological (whole-body and local sweat rate, number of active sweat glands, sweat gland output, core and skin temperatures) and perceptual (thermal comfort and sensation) variables were measured. The Antarctic camping improved the participants’ performance and induced heat-related adaptations, as evidenced by sweat redistribution (lower in the chest but higher in grouped data from the forehead, forearm, and thigh) and reduced skin temperatures in the forehead and chest during the exercise heat stress protocol. Notwithstanding the acclimatization, the participants did not report differences of the thermal sensation and comfort. In conclusion, staying in an Antarctic camp for 32 days improved physical performance and elicited physiological adaptations to heat due to the physical exertion-induced hyperthermia in the field.Academia Brasileira de Ciências2022-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652022000200701Anais da Academia Brasileira de Ciências v.94 suppl.1 2022reponame:Anais da Academia Brasileira de Ciências (Online)instname:Academia Brasileira de Ciências (ABC)instacron:ABC10.1590/0001-3765202220210593info:eu-repo/semantics/openAccessMARTINS,YGOR A.T.PASSOS,RENATA L.F.MARQUES,ALICE L.GONÇALVES,DAWIT A.P.MENDES,THIAGO T.NÚÑEZ-ESPINOSA,CRISTIANRODRIGUES,LUIZ O.C.WANNER,SAMUEL P.MORAES,MICHELE M.ARANTES,ROSA M.E.SOARES,DANUSA D.eng2022-02-24T00:00:00Zoai:scielo:S0001-37652022000200701Revistahttp://www.scielo.br/aabchttps://old.scielo.br/oai/scielo-oai.php||aabc@abc.org.br1678-26900001-3765opendoar:2022-02-24T00:00Anais da Academia Brasileira de Ciências (Online) - Academia Brasileira de Ciências (ABC)false
dc.title.none.fl_str_mv A 32-day long fieldwork in Antarctica improves heat tolerance during physical exercise
title A 32-day long fieldwork in Antarctica improves heat tolerance during physical exercise
spellingShingle A 32-day long fieldwork in Antarctica improves heat tolerance during physical exercise
MARTINS,YGOR A.T.
acclimatization
cold
performance
polar medicine
sweating
temperature
title_short A 32-day long fieldwork in Antarctica improves heat tolerance during physical exercise
title_full A 32-day long fieldwork in Antarctica improves heat tolerance during physical exercise
title_fullStr A 32-day long fieldwork in Antarctica improves heat tolerance during physical exercise
title_full_unstemmed A 32-day long fieldwork in Antarctica improves heat tolerance during physical exercise
title_sort A 32-day long fieldwork in Antarctica improves heat tolerance during physical exercise
author MARTINS,YGOR A.T.
author_facet MARTINS,YGOR A.T.
PASSOS,RENATA L.F.
MARQUES,ALICE L.
GONÇALVES,DAWIT A.P.
MENDES,THIAGO T.
NÚÑEZ-ESPINOSA,CRISTIAN
RODRIGUES,LUIZ O.C.
WANNER,SAMUEL P.
MORAES,MICHELE M.
ARANTES,ROSA M.E.
SOARES,DANUSA D.
author_role author
author2 PASSOS,RENATA L.F.
MARQUES,ALICE L.
GONÇALVES,DAWIT A.P.
MENDES,THIAGO T.
NÚÑEZ-ESPINOSA,CRISTIAN
RODRIGUES,LUIZ O.C.
WANNER,SAMUEL P.
MORAES,MICHELE M.
ARANTES,ROSA M.E.
SOARES,DANUSA D.
author2_role author
author
author
author
author
author
author
author
author
author
dc.contributor.author.fl_str_mv MARTINS,YGOR A.T.
PASSOS,RENATA L.F.
MARQUES,ALICE L.
GONÇALVES,DAWIT A.P.
MENDES,THIAGO T.
NÚÑEZ-ESPINOSA,CRISTIAN
RODRIGUES,LUIZ O.C.
WANNER,SAMUEL P.
MORAES,MICHELE M.
ARANTES,ROSA M.E.
SOARES,DANUSA D.
dc.subject.por.fl_str_mv acclimatization
cold
performance
polar medicine
sweating
temperature
topic acclimatization
cold
performance
polar medicine
sweating
temperature
description Abstract We evaluated the influence of a 32-day camping in Antarctica on physical performance and exercise-induced thermoregulatory responses. In Brazil, before and after the Antarctic camping, the volunteers performed an incremental exercise at temperate conditions and, two days later, an exercise heat stress protocol (45-min running at 60% of maximum aerobic speed, at 31°C and 60% of relative humidity). In Antarctica, core temperature was assessed on a day of fieldwork, and average values higher than 38.5°C were reported. At pre- and post-Antarctica, physiological (whole-body and local sweat rate, number of active sweat glands, sweat gland output, core and skin temperatures) and perceptual (thermal comfort and sensation) variables were measured. The Antarctic camping improved the participants’ performance and induced heat-related adaptations, as evidenced by sweat redistribution (lower in the chest but higher in grouped data from the forehead, forearm, and thigh) and reduced skin temperatures in the forehead and chest during the exercise heat stress protocol. Notwithstanding the acclimatization, the participants did not report differences of the thermal sensation and comfort. In conclusion, staying in an Antarctic camp for 32 days improved physical performance and elicited physiological adaptations to heat due to the physical exertion-induced hyperthermia in the field.
publishDate 2022
dc.date.none.fl_str_mv 2022-01-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652022000200701
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652022000200701
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/0001-3765202220210593
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Academia Brasileira de Ciências
publisher.none.fl_str_mv Academia Brasileira de Ciências
dc.source.none.fl_str_mv Anais da Academia Brasileira de Ciências v.94 suppl.1 2022
reponame:Anais da Academia Brasileira de Ciências (Online)
instname:Academia Brasileira de Ciências (ABC)
instacron:ABC
instname_str Academia Brasileira de Ciências (ABC)
instacron_str ABC
institution ABC
reponame_str Anais da Academia Brasileira de Ciências (Online)
collection Anais da Academia Brasileira de Ciências (Online)
repository.name.fl_str_mv Anais da Academia Brasileira de Ciências (Online) - Academia Brasileira de Ciências (ABC)
repository.mail.fl_str_mv ||aabc@abc.org.br
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