Low intensity static stretching does not modulate heart rate variability in trained men

Detalhes bibliográficos
Autor(a) principal: Silva,Gabriel Costa e
Data de Publicação: 2016
Outros Autores: Conceição,Rodrigo, Di Masi,Fabrízio, Domingos,Thiago, Herdy,Carlos, Silveira,Anderson
Tipo de documento: Artigo
Idioma: eng
Título da fonte: MedicalExpress (São Paulo. Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S2358-04292016000300004
Resumo: OBJECTIVE: To investigate the acute effect of static stretching on heart rate variability in trained men. METHODS: Eight subjects were randomly submitted to two situations, as follows: a static stretch protocol and 20 minutes at rest. The stretch protocol consisted of two sets of 30 seconds of static stretch of the chest muscles with a 40 second of interval between them. After 48 hours, the procedures were reversed so that all the subjects should were submitted to the two situations. The values of heart rate variability were measured before and after the experimental and control situation (stretch vs. rest). We registered the following cardiac variables: root mean square of standard deviation (rMSSD), the number of pairs of successive beats that differ by more than 50 ms (pNN50), low frequency (LF) and high frequency (HF). The Shapiro-Wilk and the paired Student's test were used for statistical analysis; a critical level of significance of p < 0.05 was adopted. RESULTS: No significant differences (p > 0.05) were found (stretching vs. control) to the RMSSD, pNN50, LF and HF indices. However, although no statistical differences were observed, the figures show large changes on mean values, suggesting an unclear effect on the sympathetic-vagal modulation. CONCLUSION: The present results suggest that a low intensity (motion range until discomfort point) and volume (1 minute) of static stretching does not significantly affect the acute sympathetic-vagal control in trained men. Because the protocol did not show differences regarding the studied variables, we suggest that there is not a sufficient level of physiological basis to perform this type of exercise in a traditional pre-exercise setting, if the purpose is obtain gains in physical performance.
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spelling Low intensity static stretching does not modulate heart rate variability in trained menHeart rate variabilityStatic stretchingAutonomic modulation OBJECTIVE: To investigate the acute effect of static stretching on heart rate variability in trained men. METHODS: Eight subjects were randomly submitted to two situations, as follows: a static stretch protocol and 20 minutes at rest. The stretch protocol consisted of two sets of 30 seconds of static stretch of the chest muscles with a 40 second of interval between them. After 48 hours, the procedures were reversed so that all the subjects should were submitted to the two situations. The values of heart rate variability were measured before and after the experimental and control situation (stretch vs. rest). We registered the following cardiac variables: root mean square of standard deviation (rMSSD), the number of pairs of successive beats that differ by more than 50 ms (pNN50), low frequency (LF) and high frequency (HF). The Shapiro-Wilk and the paired Student's test were used for statistical analysis; a critical level of significance of p < 0.05 was adopted. RESULTS: No significant differences (p > 0.05) were found (stretching vs. control) to the RMSSD, pNN50, LF and HF indices. However, although no statistical differences were observed, the figures show large changes on mean values, suggesting an unclear effect on the sympathetic-vagal modulation. CONCLUSION: The present results suggest that a low intensity (motion range until discomfort point) and volume (1 minute) of static stretching does not significantly affect the acute sympathetic-vagal control in trained men. Because the protocol did not show differences regarding the studied variables, we suggest that there is not a sufficient level of physiological basis to perform this type of exercise in a traditional pre-exercise setting, if the purpose is obtain gains in physical performance.Mavera Edições Técnicas e Científicas Ltda2016-06-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S2358-04292016000300004MedicalExpress v.3 n.3 2016reponame:MedicalExpress (São Paulo. Online)instname:Mavera Edições Científicas e Técnicas Ltda-MEinstacron:METC10.5935/MedicalExpress.2016.03.04info:eu-repo/semantics/openAccessSilva,Gabriel Costa eConceição,RodrigoDi Masi,FabrízioDomingos,ThiagoHerdy,CarlosSilveira,Andersoneng2016-06-14T00:00:00Zoai:scielo:S2358-04292016000300004Revistahttp://www.medicalexpress.net.brhttps://old.scielo.br/oai/scielo-oai.php||medicalexpress@me.net.br2358-04292318-8111opendoar:2016-06-14T00:00MedicalExpress (São Paulo. Online) - Mavera Edições Científicas e Técnicas Ltda-MEfalse
dc.title.none.fl_str_mv Low intensity static stretching does not modulate heart rate variability in trained men
title Low intensity static stretching does not modulate heart rate variability in trained men
spellingShingle Low intensity static stretching does not modulate heart rate variability in trained men
Silva,Gabriel Costa e
Heart rate variability
Static stretching
Autonomic modulation
title_short Low intensity static stretching does not modulate heart rate variability in trained men
title_full Low intensity static stretching does not modulate heart rate variability in trained men
title_fullStr Low intensity static stretching does not modulate heart rate variability in trained men
title_full_unstemmed Low intensity static stretching does not modulate heart rate variability in trained men
title_sort Low intensity static stretching does not modulate heart rate variability in trained men
author Silva,Gabriel Costa e
author_facet Silva,Gabriel Costa e
Conceição,Rodrigo
Di Masi,Fabrízio
Domingos,Thiago
Herdy,Carlos
Silveira,Anderson
author_role author
author2 Conceição,Rodrigo
Di Masi,Fabrízio
Domingos,Thiago
Herdy,Carlos
Silveira,Anderson
author2_role author
author
author
author
author
dc.contributor.author.fl_str_mv Silva,Gabriel Costa e
Conceição,Rodrigo
Di Masi,Fabrízio
Domingos,Thiago
Herdy,Carlos
Silveira,Anderson
dc.subject.por.fl_str_mv Heart rate variability
Static stretching
Autonomic modulation
topic Heart rate variability
Static stretching
Autonomic modulation
description OBJECTIVE: To investigate the acute effect of static stretching on heart rate variability in trained men. METHODS: Eight subjects were randomly submitted to two situations, as follows: a static stretch protocol and 20 minutes at rest. The stretch protocol consisted of two sets of 30 seconds of static stretch of the chest muscles with a 40 second of interval between them. After 48 hours, the procedures were reversed so that all the subjects should were submitted to the two situations. The values of heart rate variability were measured before and after the experimental and control situation (stretch vs. rest). We registered the following cardiac variables: root mean square of standard deviation (rMSSD), the number of pairs of successive beats that differ by more than 50 ms (pNN50), low frequency (LF) and high frequency (HF). The Shapiro-Wilk and the paired Student's test were used for statistical analysis; a critical level of significance of p < 0.05 was adopted. RESULTS: No significant differences (p > 0.05) were found (stretching vs. control) to the RMSSD, pNN50, LF and HF indices. However, although no statistical differences were observed, the figures show large changes on mean values, suggesting an unclear effect on the sympathetic-vagal modulation. CONCLUSION: The present results suggest that a low intensity (motion range until discomfort point) and volume (1 minute) of static stretching does not significantly affect the acute sympathetic-vagal control in trained men. Because the protocol did not show differences regarding the studied variables, we suggest that there is not a sufficient level of physiological basis to perform this type of exercise in a traditional pre-exercise setting, if the purpose is obtain gains in physical performance.
publishDate 2016
dc.date.none.fl_str_mv 2016-06-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
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dc.language.iso.fl_str_mv eng
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dc.relation.none.fl_str_mv 10.5935/MedicalExpress.2016.03.04
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eu_rights_str_mv openAccess
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dc.publisher.none.fl_str_mv Mavera Edições Técnicas e Científicas Ltda
publisher.none.fl_str_mv Mavera Edições Técnicas e Científicas Ltda
dc.source.none.fl_str_mv MedicalExpress v.3 n.3 2016
reponame:MedicalExpress (São Paulo. Online)
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collection MedicalExpress (São Paulo. Online)
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