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

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dc.creatorYgor A. T. Martins
dc.creatorRosa M. E. Arantes
dc.creatorDanusa D. Soares
dc.creatorRenata L. F. Passos
dc.creatorAlice L. Marques
dc.creatorDawit Albieiro Pinheiro Gonçalves
dc.creatorThiago T. Mendes
dc.creatorCristian Núñez-espinosa
dc.creatorLuiz O. C. Rodrigues
dc.creatorSamuel P. Wanner
dc.creatorMichele M. Moraes
dc.date.accessioned2024-02-27T16:20:36Z
dc.date.accessioned2025-09-09T00:52:47Z
dc.date.available2024-02-27T16:20:36Z
dc.date.issued2022
dc.description.sponsorshipCNPq - Conselho Nacional de Desenvolvimento Científico e Tecnológico
dc.description.sponsorshipFAPEMIG - Fundação de Amparo à Pesquisa do Estado de Minas Gerais
dc.description.sponsorshipCAPES - Coordenação de Aperfeiçoamento de Pessoal de Nível Superior
dc.format.mimetypepdf
dc.identifier.doihttps://doi.org/10.1590/0001-3765202220210593
dc.identifier.issn1678-2690
dc.identifier.urihttps://hdl.handle.net/1843/64798
dc.languageeng
dc.publisherUniversidade Federal de Minas Gerais
dc.relation.ispartofAcademia Brasileira de Ciências
dc.rightsAcesso Aberto
dc.subjectExpedições científicas - Antártida
dc.subjectSudorese
dc.subjectRegulação da Temperatura Corporal
dc.subject.otherAcclimatization
dc.subject.otherCold
dc.subject.otherPerformance
dc.subject.otherPolar medicine
dc.subject.otherSweating
dc.subject.otherTemperature
dc.titleA 32-day long fieldwork in Antarctica improves heat tolerance during physical exercise
dc.typeArtigo de periódico
local.citation.epage19
local.citation.issueSuppl 1
local.citation.spage1
local.citation.volume94
local.description.resumoWe 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.
local.identifier.orcidhttp://orcid.org/0000-0002-5534-7330
local.identifier.orcidhttp://orcid.org/0000-0001-5249-0695
local.identifier.orcidhttp://orcid.org/0000-0002-0202-3447
local.identifier.orcidhttp://orcid.org/0000-0003-2621-3330
local.identifier.orcidhttp://orcid.org/0000-0003-1644-4020
local.identifier.orcidhttp://orcid.org/0000-0002-9896-7062
local.identifier.orcidhttp://orcid.org/0000-0003-0993-9869
local.identifier.orcidhttp://orcid.org/0000-0002-4659-1032
local.identifier.orcidhttp://orcid.org/0000-0003-4707-6099
local.identifier.orcidhttp://orcid.org/0000-0003-1428-9717
local.identifier.orcidhttp://orcid.org/0000-0002-5705-8890
local.publisher.countryBrasil
local.publisher.departmentEEF - DEPARTAMENTO DE EDUCAÇÃO FÍSICA
local.publisher.departmentEEFFTO - ESCOLA DE EDUCAÇÃO FISICA, FISIOTERAPIA E TERAPIA OCUPACIONAL
local.publisher.departmentICB - DEPARTAMENTO DE PATOLOGIA
local.publisher.initialsUFMG
local.url.externahttps://www.scielo.br/j/aabc/a/R8HfKfvjVvs6Tpb4p6CrWwy/?lang=en#

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