Effects of dynamic, isometric and combined resistance training on blood pressure and its mechanisms in hypertensive men
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Citações na Scopus
3
Tipo de produção
article
Data de publicação
2023
Título da Revista
ISSN da Revista
Título do Volume
Editora
SPRINGERNATURE
Autores
FECCHIO, Rafael Y.
SOUSA, Julio C. S. de
OLIVEIRA-SILVA, Laura
SILVA JUNIOR, Natan D. da
LOW, David A.
FORJAZ, Claudia L. M.
Citação
HYPERTENSION RESEARCH, v.46, n.4, p.1031-1043, 2023
Resumo
Although dynamic resistance training (DRT) and isometric handgrip training (IHT) may decrease blood pressure (BP) in hypertensives, the effects of these types of training have not been directly compared, and a possible additive effect of combining IHT to DRT (combined resistance training & mdash;CRT), has not been investigated. Thus, this study compared the effects of DRT, IHT and CRT on BP, systemic hemodynamics, vascular function, and cardiovascular autonomic modulation. Sixty-two middle-aged men with treated hypertension were randomly allocated among four groups: DRT (8 exercises, 50% of 1RM, 3 sets until moderate fatigue), IHT (30% of MVC, 4 sets of 2 min), CRT (DRT + IHT) and control (CON - stretching). In all groups, the interventions were administered 3 times/week for 10 weeks. Pre-and post-interventions, BP, systemic hemodynamics, vascular function and cardiovascular autonomic modulation were assessed. ANOVAs and ANCOVAs adjusted for pre-intervention values were employed for analysis. Systolic BP decreased similarly with DRT and CRT (125 +/- 11 vs. 119 +/- 12 and 128 +/- 12 vs. 119 +/- 12 mmHg, respectively; P < 0.05), while peak blood flow during reactive hyperaemia (a marker of microvascular function) increased similarly in these groups (774 +/- 377 vs. 1067 +/- 461 and 654 +/- 321 vs. 954 +/- 464 mL/min, respectively, P < 0.05). DRT and CRT did not change systemic hemodynamics, flow mediated dilation, and cardiovascular autonomic modulation. In addition, none of the variables were changed by IHT. In conclusion, DRT, but not IHT, improved BP and microvascular function in treated hypertensive men. CRT did not have any additional effect in comparison with DRT alone.
Palavras-chave
Hypertension, Strength training, Vascular function, Autonomic modulation, Hemodynamics
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