The Body’s Physiological Response to High Temperatures: Exercise, Temperature Extremes And Thermal Diseases
Autor(a) principal: | |
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Data de Publicação: | 2011 |
Outros Autores: | |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Saúde e Pesquisa (Online) |
Texto Completo: | https://periodicos.unicesumar.edu.br/index.php/saudpesq/article/view/1723 |
Resumo: | Under normal conditions, body temperature remains within very strait limits, with moderate thermoregulatory actions. However, during physical exercises, heat production increases, sweating processes are triggered, intense cutaneous vasodilatation occurs, while shivering and chemical thermogenesis are impaired. Despite the efficiency of the thermoregulatory mechanisms, high environmental temperatures and air humidity, coupled to strenuous muscular work and lack of acclimatization, may lead to heat stress. This may take place both indoors and outdoors, in sports competitions and in working places. The most common moderate thermal diseases, or rather, those which do not impair the thermoregulatory system, are heat syncope and heat edema. On the other hand, diseases linked to dehydration and hyperthermia are regarded as medical emergencies, and require immediately attention to avoid more serious consequences. Current research provides a description of the mechanisms of heat production and heat loss of the human body, the interference of physical and environmental factors in the process of thermoregulation and the thermal diseases triggered by excessive heat. Data are relevant for the evaluation of certain working conditions and a more effective planning, from a thermal point of view, of working facilities, schedules and clothing. |
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The Body’s Physiological Response to High Temperatures: Exercise, Temperature Extremes And Thermal DiseasesResposta Fisiológica do Corpo às Temperaturas Elevadas: Exercício, Extremos de Temperatura e Doenças TérmicasThermoregulationHot EnvironmentsPhysical ExerciseThermal Diseases.TermorregulaçãoAmbientes QuentesExercício FísicoDoenças Térmicas.Under normal conditions, body temperature remains within very strait limits, with moderate thermoregulatory actions. However, during physical exercises, heat production increases, sweating processes are triggered, intense cutaneous vasodilatation occurs, while shivering and chemical thermogenesis are impaired. Despite the efficiency of the thermoregulatory mechanisms, high environmental temperatures and air humidity, coupled to strenuous muscular work and lack of acclimatization, may lead to heat stress. This may take place both indoors and outdoors, in sports competitions and in working places. The most common moderate thermal diseases, or rather, those which do not impair the thermoregulatory system, are heat syncope and heat edema. On the other hand, diseases linked to dehydration and hyperthermia are regarded as medical emergencies, and require immediately attention to avoid more serious consequences. Current research provides a description of the mechanisms of heat production and heat loss of the human body, the interference of physical and environmental factors in the process of thermoregulation and the thermal diseases triggered by excessive heat. Data are relevant for the evaluation of certain working conditions and a more effective planning, from a thermal point of view, of working facilities, schedules and clothing.Em condições normais, a temperatura do corpo permanece dentro de limites estreitos, com ações termorreguladoras brandas. Porém, durante a realização de atividade física a produção de calor aumenta, a sudorese é acionada, ocorre intensa vasodilatação cutânea e há a inibição dos calafrios e da termogênese química. Apesar da eficiência dos mecanismos termorreguladores, as altas temperaturas ambientais e a umidade do ar, juntamente com o trabalho muscular extenuante e a falta de aclimatação, podem levar a pessoa ao estresse por calor. Este pode ocorrer tanto em ambientes internos quanto externos, seja em competições esportivas ou em determinados ambientes laborais. As doenças térmicas brandas mais comuns, ou seja, que não comprometem o sistema termorregulador são a síncope e o edema por calor. Já as doenças relacionadas com quadro de desidratação e hipertermia configuram-se como emergência médica, devendo ser prontamente identificadas e tratadas para evitar maiores complicações. Neste aspecto, objetiva-se, neste trabalho, descrever os mecanismos de produção e perda de calor do organismo humano, a interferência dos fatores físicos e ambientais no processo de termorregulação, bem como as doenças térmicas decorrentes do calor excessivo. Estes dados são relevantes para a avaliação de determinados ambientes de trabalho e um planejamento mais eficiente, do ponto de vista térmico, das instalações laborais, jornadas de trabalho e vestimentas de trabalho.Universidade Cesumar - UniCesumar2011-05-03info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionRevisão de Literaturaapplication/pdfhttps://periodicos.unicesumar.edu.br/index.php/saudpesq/article/view/1723Saúde e Pesquisa; Vol 4 No 2 (2011): maio/ago.Saúde e Pesquisa; v. 4 n. 2 (2011): maio/ago.2176-9206reponame:Saúde e Pesquisa (Online)instname:Cesumar Diretoria de Pesquisainstacron:CESUMARporhttps://periodicos.unicesumar.edu.br/index.php/saudpesq/article/view/1723/1286Camargo, Maristela Gomes deFurlan, Maria Montserrat Diaz Pedrosainfo:eu-repo/semantics/openAccess2022-05-20T14:30:49Zoai:ojs.pkp.sfu.ca:article/1723Revistahttps://periodicos.unicesumar.edu.br/index.php/saudpesqPUBhttps://periodicos.unicesumar.edu.br/index.php/saudpesq/oainaep@cesumar.br2176-92061983-1870opendoar:2022-05-20T14:30:49Saúde e Pesquisa (Online) - Cesumar Diretoria de Pesquisafalse |
dc.title.none.fl_str_mv |
The Body’s Physiological Response to High Temperatures: Exercise, Temperature Extremes And Thermal Diseases Resposta Fisiológica do Corpo às Temperaturas Elevadas: Exercício, Extremos de Temperatura e Doenças Térmicas |
title |
The Body’s Physiological Response to High Temperatures: Exercise, Temperature Extremes And Thermal Diseases |
spellingShingle |
The Body’s Physiological Response to High Temperatures: Exercise, Temperature Extremes And Thermal Diseases Camargo, Maristela Gomes de Thermoregulation Hot Environments Physical Exercise Thermal Diseases. Termorregulação Ambientes Quentes Exercício Físico Doenças Térmicas. |
title_short |
The Body’s Physiological Response to High Temperatures: Exercise, Temperature Extremes And Thermal Diseases |
title_full |
The Body’s Physiological Response to High Temperatures: Exercise, Temperature Extremes And Thermal Diseases |
title_fullStr |
The Body’s Physiological Response to High Temperatures: Exercise, Temperature Extremes And Thermal Diseases |
title_full_unstemmed |
The Body’s Physiological Response to High Temperatures: Exercise, Temperature Extremes And Thermal Diseases |
title_sort |
The Body’s Physiological Response to High Temperatures: Exercise, Temperature Extremes And Thermal Diseases |
author |
Camargo, Maristela Gomes de |
author_facet |
Camargo, Maristela Gomes de Furlan, Maria Montserrat Diaz Pedrosa |
author_role |
author |
author2 |
Furlan, Maria Montserrat Diaz Pedrosa |
author2_role |
author |
dc.contributor.author.fl_str_mv |
Camargo, Maristela Gomes de Furlan, Maria Montserrat Diaz Pedrosa |
dc.subject.por.fl_str_mv |
Thermoregulation Hot Environments Physical Exercise Thermal Diseases. Termorregulação Ambientes Quentes Exercício Físico Doenças Térmicas. |
topic |
Thermoregulation Hot Environments Physical Exercise Thermal Diseases. Termorregulação Ambientes Quentes Exercício Físico Doenças Térmicas. |
description |
Under normal conditions, body temperature remains within very strait limits, with moderate thermoregulatory actions. However, during physical exercises, heat production increases, sweating processes are triggered, intense cutaneous vasodilatation occurs, while shivering and chemical thermogenesis are impaired. Despite the efficiency of the thermoregulatory mechanisms, high environmental temperatures and air humidity, coupled to strenuous muscular work and lack of acclimatization, may lead to heat stress. This may take place both indoors and outdoors, in sports competitions and in working places. The most common moderate thermal diseases, or rather, those which do not impair the thermoregulatory system, are heat syncope and heat edema. On the other hand, diseases linked to dehydration and hyperthermia are regarded as medical emergencies, and require immediately attention to avoid more serious consequences. Current research provides a description of the mechanisms of heat production and heat loss of the human body, the interference of physical and environmental factors in the process of thermoregulation and the thermal diseases triggered by excessive heat. Data are relevant for the evaluation of certain working conditions and a more effective planning, from a thermal point of view, of working facilities, schedules and clothing. |
publishDate |
2011 |
dc.date.none.fl_str_mv |
2011-05-03 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Revisão de Literatura |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://periodicos.unicesumar.edu.br/index.php/saudpesq/article/view/1723 |
url |
https://periodicos.unicesumar.edu.br/index.php/saudpesq/article/view/1723 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
https://periodicos.unicesumar.edu.br/index.php/saudpesq/article/view/1723/1286 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Universidade Cesumar - UniCesumar |
publisher.none.fl_str_mv |
Universidade Cesumar - UniCesumar |
dc.source.none.fl_str_mv |
Saúde e Pesquisa; Vol 4 No 2 (2011): maio/ago. Saúde e Pesquisa; v. 4 n. 2 (2011): maio/ago. 2176-9206 reponame:Saúde e Pesquisa (Online) instname:Cesumar Diretoria de Pesquisa instacron:CESUMAR |
instname_str |
Cesumar Diretoria de Pesquisa |
instacron_str |
CESUMAR |
institution |
CESUMAR |
reponame_str |
Saúde e Pesquisa (Online) |
collection |
Saúde e Pesquisa (Online) |
repository.name.fl_str_mv |
Saúde e Pesquisa (Online) - Cesumar Diretoria de Pesquisa |
repository.mail.fl_str_mv |
naep@cesumar.br |
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1754122532090281984 |