Effects of dynamic, isometric and combined resistance training on blood pressure and its mechanisms in hypertensive men.

Autor: Fecchio RY; Exercise Hemodynamic Laboratory, School of Physical Education and Sport, University of São Paulo, São Paulo, São Paulo, Brazil., de Sousa JCS; Exercise Hemodynamic Laboratory, School of Physical Education and Sport, University of São Paulo, São Paulo, São Paulo, Brazil., Oliveira-Silva L; Exercise Hemodynamic Laboratory, School of Physical Education and Sport, University of São Paulo, São Paulo, São Paulo, Brazil., da Silva Junior ND; Exercise Hemodynamic Laboratory, School of Physical Education and Sport, University of São Paulo, São Paulo, São Paulo, Brazil., Pio-Abreu A; Unidade de Hipertensão, Disciplina de Nefrologia, Hospital das Clínicas, Faculdade de Medicina, Universidade de São Paulo, São Paulo, São Paulo, Brazil., da Silva GV; Unidade de Hipertensão, Disciplina de Nefrologia, Hospital das Clínicas, Faculdade de Medicina, Universidade de São Paulo, São Paulo, São Paulo, Brazil., Drager LF; Unidade de Hipertensão, Disciplina de Nefrologia, Hospital das Clínicas, Faculdade de Medicina, Universidade de São Paulo, São Paulo, São Paulo, Brazil.; Unidade de Hipertensão, Instituto do Coração (InCor), Hospital das Clínicas, Faculdade de Medicina, Universidade de São Paulo, São Paulo, Brazil., Low DA; Research Institute of Sport and Exercise Sciences, Faculty of Science, Liverpool John Moores University, Liverpool, Merseyside, UK., Forjaz CLM; Exercise Hemodynamic Laboratory, School of Physical Education and Sport, University of São Paulo, São Paulo, São Paulo, Brazil. cforjaz@usp.br.
Jazyk: angličtina
Zdroj: Hypertension research : official journal of the Japanese Society of Hypertension [Hypertens Res] 2023 Apr; Vol. 46 (4), pp. 1031-1043. Date of Electronic Publication: 2023 Feb 09.
DOI: 10.1038/s41440-023-01202-4
Abstrakt: 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-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.
(© 2023. The Author(s), under exclusive licence to The Japanese Society of Hypertension.)
Databáze: MEDLINE
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