Acute antihypertensive effect of self-selected exercise intensity in older women with hypertension: a crossover trial
- PMID: 31496668
- PMCID: PMC6689089
- DOI: 10.2147/CIA.S207254
Acute antihypertensive effect of self-selected exercise intensity in older women with hypertension: a crossover trial
Abstract
Purpose: Acute reduction in blood pressure (BP) following an exercise session is evidenced in controlled settings with formal supervision in hypertensive older populations. This study investigated the effect of a self-selected exercise (SSE)-intensity session on ambulatory BP in hypertensive older women in a "real-world" setting.
Methods: Twenty inactive older women with hypertension (64.9±4.5 years) were included in this randomized, controlled, crossover trial. After baseline assessments, participants performed 30 minutes of an SSE-intensity session on an outdoor track and a control session, separated by 7-10 days. Heart rate (HR), rating of perceived exertion (RPE), and affective response were assessed. Ambulatory BP was monitored for 20 hours following both sessions. Paired t-tests and generalized estimation were used for data analysis.
Results: Participants exercised at 5.1±1.1 km/h, spent ~90% of the exercise time at moderate-vigorous intensity (≥40% of heart rate reserve). SSE-intensity session was reported as light (RPE 11.0±1.5) and pleasant (affect 3.4±1.2). SSE-intensity session elicited reductions in systolic BP in the first 6 hours postexercise (6.0 mmHg, CI 2.7-9.3 mmHg; P<0.001). Average systolic BP in the 20-hour (-3.4 mmHg, CI -5.9 to -0.9 mmHg; P=0.010) and awake (-4.0 mmHg, CI -6.4 to -1.6 mmHg; P=0.003) periods were lower following SSE-intensity session compared to control session. No differences were observed in average systolic BP during asleep period and diastolic BP during the 20-hour awake and asleep periods between the SSE-intensity session and control session (P>0.05).
Conclusion: An SSE-intensity session elicited a reduction in ambulatory systolic BP in inactive older women with hypertension during awake and 20-hour periods. Also, the SSE-intensity session was reported as light and pleasant.
Keywords: adherence; affect; blood pressure; elderly; physical activity.
Conflict of interest statement
The authors report no conflicts of interest in this work.
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References
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- Jaeger BC, Anstey DE, Bress AP, et al. Cardiovascular disease and mortality in adults aged ≥60 years according to recommendations by the American College of Cardiology/American Heart Association and American College of Physicians/American Academy of Family Physicians. Hypertension. 2019;73(2):327–334. doi: 10.1161/HYPERTENSIONAHA.118.12291 - DOI - PMC - PubMed
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