Thermoregulation in Hypertensive Rats during Exercise: Effects of Physical Training

Detalhes bibliográficos
Autor(a) principal: Gomes,Luis Henrique Lobo Silame
Data de Publicação: 2019
Outros Autores: Drummond,Lucas Rios, Campos,Helton Oliveira, Rezende,Leonardo Mateus Teixeira de, Carneiro-Júnior,Miguel Araújo, Oliveira,Alessandro, Natali,Antônio José, Prímola-Gomes,Thales Nicolau
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Arquivos Brasileiros de Cardiologia (Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0066-782X2019000500534
Resumo: Abstract Background: Spontaneously hypertensive rats (SHR) show deficit in thermal balance during physical exercise. Objective: To assess the effects of low-intensity physical exercise training on thermal balance of hypertensive rats undergoing an acute exercise protocol. Methods: Sixteen-week-old male Wistar rats and SHR were allocated into four groups: control Wistar rats (C-WIS), trained Wistar (T-WIS), control SHR (C-SHR) and trained SHR (T-SHR). Treadmill exercise training was performed for 12 weeks. Blood pressure, resting heart rate and total exercise time was measured before and after the physical exercise program. After the exercise program, a temperature sensor was implanted in the abdominal cavity, and the animals subjected to an acute exercise protocol, during which internal body temperature, tail skin temperature and oxygen consumption until fatigue were continuously recorded. Mechanical efficiency (ME), work, heat dissipation threshold and sensitivity were calculated. Statistical significance was set at 5%. Results: Physical training and hypertension had no effect on thermal balance during physical exercise. Compared with C-WIS, the T-WIS group showed higher heat production, which was counterbalanced by higher heat dissipation. Hypertensive rats showed lower ME than normotensive rats, which was not reversed by the physical training. Conclusion: Low-intensity physical training did not affect thermal balance in SHR subjected to acute exercise.
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spelling Thermoregulation in Hypertensive Rats during Exercise: Effects of Physical TrainingRatsHypertensionExercise/physiologyPhysical ExertionBody Temperature ChangesFatigueAbstract Background: Spontaneously hypertensive rats (SHR) show deficit in thermal balance during physical exercise. Objective: To assess the effects of low-intensity physical exercise training on thermal balance of hypertensive rats undergoing an acute exercise protocol. Methods: Sixteen-week-old male Wistar rats and SHR were allocated into four groups: control Wistar rats (C-WIS), trained Wistar (T-WIS), control SHR (C-SHR) and trained SHR (T-SHR). Treadmill exercise training was performed for 12 weeks. Blood pressure, resting heart rate and total exercise time was measured before and after the physical exercise program. After the exercise program, a temperature sensor was implanted in the abdominal cavity, and the animals subjected to an acute exercise protocol, during which internal body temperature, tail skin temperature and oxygen consumption until fatigue were continuously recorded. Mechanical efficiency (ME), work, heat dissipation threshold and sensitivity were calculated. Statistical significance was set at 5%. Results: Physical training and hypertension had no effect on thermal balance during physical exercise. Compared with C-WIS, the T-WIS group showed higher heat production, which was counterbalanced by higher heat dissipation. Hypertensive rats showed lower ME than normotensive rats, which was not reversed by the physical training. Conclusion: Low-intensity physical training did not affect thermal balance in SHR subjected to acute exercise.Sociedade Brasileira de Cardiologia - SBC2019-05-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0066-782X2019000500534Arquivos Brasileiros de Cardiologia v.112 n.5 2019reponame:Arquivos Brasileiros de Cardiologia (Online)instname:Sociedade Brasileira de Cardiologia (SBC)instacron:SBC10.5935/abc.20190050info:eu-repo/semantics/openAccessGomes,Luis Henrique Lobo SilameDrummond,Lucas RiosCampos,Helton OliveiraRezende,Leonardo Mateus Teixeira deCarneiro-Júnior,Miguel AraújoOliveira,AlessandroNatali,Antônio JoséPrímola-Gomes,Thales Nicolaueng2019-07-31T00:00:00Zoai:scielo:S0066-782X2019000500534Revistahttp://www.arquivosonline.com.br/https://old.scielo.br/oai/scielo-oai.php||arquivos@cardiol.br1678-41700066-782Xopendoar:2019-07-31T00:00Arquivos Brasileiros de Cardiologia (Online) - Sociedade Brasileira de Cardiologia (SBC)false
dc.title.none.fl_str_mv Thermoregulation in Hypertensive Rats during Exercise: Effects of Physical Training
title Thermoregulation in Hypertensive Rats during Exercise: Effects of Physical Training
spellingShingle Thermoregulation in Hypertensive Rats during Exercise: Effects of Physical Training
Gomes,Luis Henrique Lobo Silame
Rats
Hypertension
Exercise/physiology
Physical Exertion
Body Temperature Changes
Fatigue
title_short Thermoregulation in Hypertensive Rats during Exercise: Effects of Physical Training
title_full Thermoregulation in Hypertensive Rats during Exercise: Effects of Physical Training
title_fullStr Thermoregulation in Hypertensive Rats during Exercise: Effects of Physical Training
title_full_unstemmed Thermoregulation in Hypertensive Rats during Exercise: Effects of Physical Training
title_sort Thermoregulation in Hypertensive Rats during Exercise: Effects of Physical Training
author Gomes,Luis Henrique Lobo Silame
author_facet Gomes,Luis Henrique Lobo Silame
Drummond,Lucas Rios
Campos,Helton Oliveira
Rezende,Leonardo Mateus Teixeira de
Carneiro-Júnior,Miguel Araújo
Oliveira,Alessandro
Natali,Antônio José
Prímola-Gomes,Thales Nicolau
author_role author
author2 Drummond,Lucas Rios
Campos,Helton Oliveira
Rezende,Leonardo Mateus Teixeira de
Carneiro-Júnior,Miguel Araújo
Oliveira,Alessandro
Natali,Antônio José
Prímola-Gomes,Thales Nicolau
author2_role author
author
author
author
author
author
author
dc.contributor.author.fl_str_mv Gomes,Luis Henrique Lobo Silame
Drummond,Lucas Rios
Campos,Helton Oliveira
Rezende,Leonardo Mateus Teixeira de
Carneiro-Júnior,Miguel Araújo
Oliveira,Alessandro
Natali,Antônio José
Prímola-Gomes,Thales Nicolau
dc.subject.por.fl_str_mv Rats
Hypertension
Exercise/physiology
Physical Exertion
Body Temperature Changes
Fatigue
topic Rats
Hypertension
Exercise/physiology
Physical Exertion
Body Temperature Changes
Fatigue
description Abstract Background: Spontaneously hypertensive rats (SHR) show deficit in thermal balance during physical exercise. Objective: To assess the effects of low-intensity physical exercise training on thermal balance of hypertensive rats undergoing an acute exercise protocol. Methods: Sixteen-week-old male Wistar rats and SHR were allocated into four groups: control Wistar rats (C-WIS), trained Wistar (T-WIS), control SHR (C-SHR) and trained SHR (T-SHR). Treadmill exercise training was performed for 12 weeks. Blood pressure, resting heart rate and total exercise time was measured before and after the physical exercise program. After the exercise program, a temperature sensor was implanted in the abdominal cavity, and the animals subjected to an acute exercise protocol, during which internal body temperature, tail skin temperature and oxygen consumption until fatigue were continuously recorded. Mechanical efficiency (ME), work, heat dissipation threshold and sensitivity were calculated. Statistical significance was set at 5%. Results: Physical training and hypertension had no effect on thermal balance during physical exercise. Compared with C-WIS, the T-WIS group showed higher heat production, which was counterbalanced by higher heat dissipation. Hypertensive rats showed lower ME than normotensive rats, which was not reversed by the physical training. Conclusion: Low-intensity physical training did not affect thermal balance in SHR subjected to acute exercise.
publishDate 2019
dc.date.none.fl_str_mv 2019-05-01
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=S0066-782X2019000500534
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0066-782X2019000500534
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.5935/abc.20190050
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 Sociedade Brasileira de Cardiologia - SBC
publisher.none.fl_str_mv Sociedade Brasileira de Cardiologia - SBC
dc.source.none.fl_str_mv Arquivos Brasileiros de Cardiologia v.112 n.5 2019
reponame:Arquivos Brasileiros de Cardiologia (Online)
instname:Sociedade Brasileira de Cardiologia (SBC)
instacron:SBC
instname_str Sociedade Brasileira de Cardiologia (SBC)
instacron_str SBC
institution SBC
reponame_str Arquivos Brasileiros de Cardiologia (Online)
collection Arquivos Brasileiros de Cardiologia (Online)
repository.name.fl_str_mv Arquivos Brasileiros de Cardiologia (Online) - Sociedade Brasileira de Cardiologia (SBC)
repository.mail.fl_str_mv ||arquivos@cardiol.br
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