Oliveira-Dantas, FF, Brasileiro-Santos, MdS, Thomas, SG, Silva, AS, Silva, DC, Browne, RAV, Farias-Junior, LF, Costa, EC, and Santos, AdC. Short-term resistance training improves cardiac autonomic modulation and blood pressure in hypertensive older women: a randomized controlled trial. J Strength Cond Res XX(X): 000–000, 2019—This randomized controlled trial investigated the efficacy of short-term resistance training (RT) on cardiac autonomic modulation and peripheral hemodynamic parameters in hypertensive older women. Twenty-five hypertensive older women who were insufficiently active (64.7 ± 4.7 years) participated in this study. Subjects were randomly allocated to a 10-week RT program (2 d·wk−1 in the first 5 weeks; 3 d·wk−1 in the last 5 weeks) or a nonexercise control group. Linear reverse periodization was used for the RT program. Cardiac autonomic modulation, mean blood pressure (MBP), peripheral vascular resistance (PVR), and resting heart rate (RHR) were measured before and after 10 weeks. The RT group reduced cardiac sympathetic modulation (0V%; B = −6.6; 95% confidence interval [CI]: −12.9 to −0.2; p = 0.045; Cohen's d = 0.88) and showed a trend for increased parasympathetic modulation (2V%; B = 12.5; 95% CI: 0–25; p = 0.050; Cohen's d = 0.87) compared with the control group. The RT group reduced MBP (B = −8.5 mm Hg; 95% CI: −13.6 to −3.4; p = 0.001; Cohen's d = 1.27), PVR (B = −14.1 units; 95% CI: −19.9 to −8.4; p < 0.001; Cohen's d = 1.86), and RHR (B = −8.8 b·min−1; 95% CI: −14.3 to −3.3; p = 0.002; Cohen's d = 1.20) compared with the control group. In the RT group, the changes in 2V% patterns and low-frequency components showed a correlation with changes in MBP (r = −0.60; p = 0.032) and RHR (r = 0.75; p = 0.0003). In conclusion, 10 weeks of RT improved cardiac autonomic modulation and reduced MBP and PVR in hypertensive older women. These results reinforce the importance of RT for this population.
1Graduate Associate Program in Physical Education, Federal University of Paraiba/University of Pernambuco, João Pessoa, Paraiba, Brazil;
2Research Laboratory for Physical Training Applied to Health, Federal University of Paraiba, João Pessoa, Paraiba, Brazil;
3Faculty of Kinesiology and Physical Education, University of Toronto, Toronto, Ontario, Canada; and
4Graduate Program in Health Sciences, Federal University of Rio Grande do Norte, Natal, Rio Grande do Norte, Brazil
Address correspondence to Filipe F. Oliveira-Dantas, email@example.com.