Reliability and Time Course of Postexercise Hypotension during Exercise Training among Adults with Hypertension
Peter A Kiernan1, Christina A Day1, Rachel S Berkowsky1
1Department of Kinesiology, University of Connecticut, Storrs, CT 06269, USA.
Journal of Cardiovascular Development and Disease
|February 23, 2024
Summary
Postexercise hypotension (PEH) reliably lowers blood pressure (BP) for up to 24 hours after exercise. This study shows PEH remains consistent during 12 weeks of aerobic training in hypertensive adults.
Area of Science:
- Exercise Physiology
- Cardiovascular Health
- Hypertension Management
Background:
- Postexercise hypotension (PEH) is a well-documented phenomenon characterized by a decrease in blood pressure (BP) following exercise.
- The impact of sustained exercise training on the reliability and temporal dynamics of PEH in individuals with hypertension remains largely unexplored.
Purpose of the Study:
- To investigate the reliability and time course of changes in postexercise hypotension (PEH) during a 12-week aerobic exercise training program.
- To assess the consistency and magnitude of BP reduction following exercise sessions in hypertensive adults.
Main Methods:
- A cohort of 10 adults with hypertension and obesity participated in 12 weeks of moderate-to-vigorous intensity aerobic exercise (40 min, 3 times/week).
- Self-measured BP was recorded before and for 10 minutes after each session to calculate PEH.
- Intraclass correlation coefficients (ICC) and Akaike Information Criterion (AIC) were used to assess PEH reliability and model fit, respectively.
Main Results:
- PEH occurred in 89.7% of exercise sessions, with average BP reductions of 9.3/3.2 mmHg.
- Moderate reliability (ICC ~0.6) of PEH was observed throughout the training period.
- Stabilization of maximal systolic BP reduction occurred by week 3, and diastolic BP reduction by week 10.
Conclusions:
- Postexercise hypotension (PEH) is a reliable and persistent phenomenon during 12 weeks of aerobic exercise training in hypertensive adults.
- The findings suggest that PEH may significantly contribute to the overall antihypertensive effects of regular exercise.
- Further research with larger, ambulatory monitoring studies is warranted to confirm these results.
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