Isometric handgrip exercise impacts only on very short-term blood pressure variability, but not on short-term blood pressure variability in hypertensive individuals : a randomized controlled trial

Detalhes bibliográficos
Autor(a) principal: Bertoletti, Otavio Azevedo
Data de Publicação: 2022
Outros Autores: Silva, Rodrigo Ferrari da, Ferlin, Elton Luiz, Barcellos, Ozi de Moraes, Fuchs, Sandra Cristina Pereira Costa
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFRGS
Texto Completo: http://hdl.handle.net/10183/252285
Resumo: Background: The effect of a single isometric handgrip exercise (IHG) on blood pressure (BP) variability (BPV) has not been addressed. This randomized controlled trial evaluated the effect of IHG vs. sham on BPV and BP. Methods: Hypertensive patients using up to two BP-lowering medications were randomly assigned to IHG (4 × 2 min; 30% of maximal voluntary contraction, MVC, with 1 min rest between sets, unilateral) or sham (protocol; 0.3% of MVC). Systolic and diastolic BP were assessed beat-to-beat in the laboratory before, during, and post-intervention and also using 24-h ambulatory BP monitoring (ABPM). BPV was expressed as average real variability (ARV) and standard deviation (SD). Results: Laboratory BPV, ARV and SD variability, had marked increase during the intervention, but not in the sham group, decreasing in the post-intervention recovery period. The overall change in ARV from pre- to 15 min post-intervention were 0.27 ± 0.07 (IHG) vs. 0.05 ± 0.15 (sham group), with a statistically significant p-value for interaction. Similarly, mean systolic BP increased during the intervention (IHG 165.4 ± 4.5 vs. sham 152.4 ± 3.5 mmHg; p = 0.02) as did diastolic BP (104.0 ± 2.5 vs. 90.5 ± 1.7 mmHg, respectively; p < 0.001) and decreased afterward. However, neither the short-term BPV nor BP assessed by ABPM reached statistically significant differences between groups. Conclusion: A single session of IHG reduces very short-term variability but does not affect short-term variability. IHG promotes PEH in the laboratory, but does not sustain 24-h systolic and diastolic PEH beyond the recovery period.
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spelling Bertoletti, Otavio AzevedoSilva, Rodrigo Ferrari daFerlin, Elton LuizBarcellos, Ozi de MoraesFuchs, Sandra Cristina Pereira Costa2022-12-03T05:09:43Z20221664-042Xhttp://hdl.handle.net/10183/252285001153789Background: The effect of a single isometric handgrip exercise (IHG) on blood pressure (BP) variability (BPV) has not been addressed. This randomized controlled trial evaluated the effect of IHG vs. sham on BPV and BP. Methods: Hypertensive patients using up to two BP-lowering medications were randomly assigned to IHG (4 × 2 min; 30% of maximal voluntary contraction, MVC, with 1 min rest between sets, unilateral) or sham (protocol; 0.3% of MVC). Systolic and diastolic BP were assessed beat-to-beat in the laboratory before, during, and post-intervention and also using 24-h ambulatory BP monitoring (ABPM). BPV was expressed as average real variability (ARV) and standard deviation (SD). Results: Laboratory BPV, ARV and SD variability, had marked increase during the intervention, but not in the sham group, decreasing in the post-intervention recovery period. The overall change in ARV from pre- to 15 min post-intervention were 0.27 ± 0.07 (IHG) vs. 0.05 ± 0.15 (sham group), with a statistically significant p-value for interaction. Similarly, mean systolic BP increased during the intervention (IHG 165.4 ± 4.5 vs. sham 152.4 ± 3.5 mmHg; p = 0.02) as did diastolic BP (104.0 ± 2.5 vs. 90.5 ± 1.7 mmHg, respectively; p < 0.001) and decreased afterward. However, neither the short-term BPV nor BP assessed by ABPM reached statistically significant differences between groups. Conclusion: A single session of IHG reduces very short-term variability but does not affect short-term variability. IHG promotes PEH in the laboratory, but does not sustain 24-h systolic and diastolic PEH beyond the recovery period.application/pdfengFrontiers in physiology. Columbus. Vol. 13, (Sep. 2022), 962125, p. 1-9HipertensãoPressão arterialDinamometria manualExercício físicoAverage real variabilityHypertensionBlood pressure variabilityHandgrip dynamometryIsometric exerciseIsometric handgrip exercise impacts only on very short-term blood pressure variability, but not on short-term blood pressure variability in hypertensive individuals : a randomized controlled trialEstrangeiroinfo:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da UFRGSinstname:Universidade Federal do Rio Grande do Sul (UFRGS)instacron:UFRGSTEXT001153789.pdf.txt001153789.pdf.txtExtracted Texttext/plain38756http://www.lume.ufrgs.br/bitstream/10183/252285/2/001153789.pdf.txteb541af3deda4d050015bf04a4b1812fMD52ORIGINAL001153789.pdfTexto completoapplication/pdf1165677http://www.lume.ufrgs.br/bitstream/10183/252285/1/001153789.pdf5ae52ea184a48796d54e23a783564b01MD5110183/2522852023-11-19 04:21:00.197304oai:www.lume.ufrgs.br:10183/252285Repositório de PublicaçõesPUBhttps://lume.ufrgs.br/oai/requestopendoar:2023-11-19T06:21Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false
dc.title.pt_BR.fl_str_mv Isometric handgrip exercise impacts only on very short-term blood pressure variability, but not on short-term blood pressure variability in hypertensive individuals : a randomized controlled trial
title Isometric handgrip exercise impacts only on very short-term blood pressure variability, but not on short-term blood pressure variability in hypertensive individuals : a randomized controlled trial
spellingShingle Isometric handgrip exercise impacts only on very short-term blood pressure variability, but not on short-term blood pressure variability in hypertensive individuals : a randomized controlled trial
Bertoletti, Otavio Azevedo
Hipertensão
Pressão arterial
Dinamometria manual
Exercício físico
Average real variability
Hypertension
Blood pressure variability
Handgrip dynamometry
Isometric exercise
title_short Isometric handgrip exercise impacts only on very short-term blood pressure variability, but not on short-term blood pressure variability in hypertensive individuals : a randomized controlled trial
title_full Isometric handgrip exercise impacts only on very short-term blood pressure variability, but not on short-term blood pressure variability in hypertensive individuals : a randomized controlled trial
title_fullStr Isometric handgrip exercise impacts only on very short-term blood pressure variability, but not on short-term blood pressure variability in hypertensive individuals : a randomized controlled trial
title_full_unstemmed Isometric handgrip exercise impacts only on very short-term blood pressure variability, but not on short-term blood pressure variability in hypertensive individuals : a randomized controlled trial
title_sort Isometric handgrip exercise impacts only on very short-term blood pressure variability, but not on short-term blood pressure variability in hypertensive individuals : a randomized controlled trial
author Bertoletti, Otavio Azevedo
author_facet Bertoletti, Otavio Azevedo
Silva, Rodrigo Ferrari da
Ferlin, Elton Luiz
Barcellos, Ozi de Moraes
Fuchs, Sandra Cristina Pereira Costa
author_role author
author2 Silva, Rodrigo Ferrari da
Ferlin, Elton Luiz
Barcellos, Ozi de Moraes
Fuchs, Sandra Cristina Pereira Costa
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Bertoletti, Otavio Azevedo
Silva, Rodrigo Ferrari da
Ferlin, Elton Luiz
Barcellos, Ozi de Moraes
Fuchs, Sandra Cristina Pereira Costa
dc.subject.por.fl_str_mv Hipertensão
Pressão arterial
Dinamometria manual
Exercício físico
topic Hipertensão
Pressão arterial
Dinamometria manual
Exercício físico
Average real variability
Hypertension
Blood pressure variability
Handgrip dynamometry
Isometric exercise
dc.subject.eng.fl_str_mv Average real variability
Hypertension
Blood pressure variability
Handgrip dynamometry
Isometric exercise
description Background: The effect of a single isometric handgrip exercise (IHG) on blood pressure (BP) variability (BPV) has not been addressed. This randomized controlled trial evaluated the effect of IHG vs. sham on BPV and BP. Methods: Hypertensive patients using up to two BP-lowering medications were randomly assigned to IHG (4 × 2 min; 30% of maximal voluntary contraction, MVC, with 1 min rest between sets, unilateral) or sham (protocol; 0.3% of MVC). Systolic and diastolic BP were assessed beat-to-beat in the laboratory before, during, and post-intervention and also using 24-h ambulatory BP monitoring (ABPM). BPV was expressed as average real variability (ARV) and standard deviation (SD). Results: Laboratory BPV, ARV and SD variability, had marked increase during the intervention, but not in the sham group, decreasing in the post-intervention recovery period. The overall change in ARV from pre- to 15 min post-intervention were 0.27 ± 0.07 (IHG) vs. 0.05 ± 0.15 (sham group), with a statistically significant p-value for interaction. Similarly, mean systolic BP increased during the intervention (IHG 165.4 ± 4.5 vs. sham 152.4 ± 3.5 mmHg; p = 0.02) as did diastolic BP (104.0 ± 2.5 vs. 90.5 ± 1.7 mmHg, respectively; p < 0.001) and decreased afterward. However, neither the short-term BPV nor BP assessed by ABPM reached statistically significant differences between groups. Conclusion: A single session of IHG reduces very short-term variability but does not affect short-term variability. IHG promotes PEH in the laboratory, but does not sustain 24-h systolic and diastolic PEH beyond the recovery period.
publishDate 2022
dc.date.accessioned.fl_str_mv 2022-12-03T05:09:43Z
dc.date.issued.fl_str_mv 2022
dc.type.driver.fl_str_mv Estrangeiro
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dc.identifier.issn.pt_BR.fl_str_mv 1664-042X
dc.identifier.nrb.pt_BR.fl_str_mv 001153789
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dc.language.iso.fl_str_mv eng
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dc.relation.ispartof.pt_BR.fl_str_mv Frontiers in physiology. Columbus. Vol. 13, (Sep. 2022), 962125, p. 1-9
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