Thermoregulation in Hypertensive Rats during Exercise: Effects of Physical Training
Autor(a) principal: | |
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Data de Publicação: | 2019 |
Outros Autores: | , , , , , , |
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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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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1752126569764093952 |