What is the clinical evidence from this study?

Study design: Other. Population: Hypertension in postmenopausal women (n=26). Intervention: Combined exercise training vs. Pre-training baseline and normotensive women. Primary outcome: Heart rate variability parameters (Mean RR, SDNN, RMSSD, SD1, and SD2) (p=< 0.05).

January 1, 2021Open Access

Effect of combined exercise training on heart rate variability in normotensive and hypertensive postmenopausal women

Q: What are the key findings of this study?

Ten weeks of combined exercise training improved heart rate variability parameters similarly in both normotensive and hypertensive postmenopausal women (time effects p < 0.05).

IMIgor Moraes MarianoUniversidade Federal de Uberlândia VFVíctor Hugo de FreitasUniversidade Federal da Bahia JBJaqueline Pontes BatistaUniversidade Federal de Uberlândia

Key Result

Ten weeks of combined exercise training improved heart rate variability parameters similarly in both normotensive and hypertensive postmenopausal women (time effects p < 0.05).

Structured PICO

Does 10 weeks of combined exercise training improve heart rate variability in normotensive and hypertensive postmenopausal women?

Population

26 normotensive and hypertensive postmenopausal women who completed 10 weeks of combined exercise training.

Intervention

10 weeks of combined exercise training (45 minutes, 3 times a week, consisting of 5 minutes warm-up, 20 minutes resistance exercise, and 20 minutes aerobic exercise)

Comparator

Pre-training baseline (within-group comparison) and comparison between normotensive and hypertensive groups

Outcome

Heart rate variability parameters (Mean RR, SDNN, RMSSD, SD1, and SD2) assessed before and after the 10-week trainingsurrogate

A 10-week combined aerobic and resistance exercise program improves autonomic modulation (heart rate variability) in postmenopausal women, regardless of whether they have hypertension.

Main Result

p-value: p=< 0.05

Abstract

Aim: This study aimed to verify and compare the effects of 10 weeks of combined exercise training on the heart rate variability of normotensive (NT) and hypertensive (HT) postmenopausal women. Methods: This is a quasiexperimental controlled clinical trial. Therefore, 14 HT and 12 NT postmenopausal women completed 10 weeks of combined exercise training. The exercise protocol consisted of 45 min of exercise, performed 3 times a week, consisting of 5 min of warm-up, 20 min of resistance exercise, and 20 min of aerobic exercise. Heart rate variability assessments were performed before and after the end of physical training. Results: Heart rate variability was assessed pre-and post-training periods. Mean RR (NT = 95 88; HT = 38 127), SDNN (NT = 9 13; HT = 3 14), RMSSD (NT = 10 12; HT = 2 18), SD1 (NT = 7 8; HT = 1 13), and SD2 (NT = 10 18; HT = 4 17) showed improvements after the intervention (time effects p < 0.05). No parameters presented group or interaction effects (p 0.05). Conclusion: In summary, 10 weeks of combined exercise training improved heart rate variability parameters similarly in both NT and HT postmenopausal women. Therefore, combined exercise training may be used to improve autonomic modulation of the heart rate of postmenopausal women, regardless of the presence of hypertension.

KI fragen

Bookmark

View Full Paper