Blood pressure response to graded bicycle exercise in males and females across the age and fitness spectrum

Author:

Janssens Kristel12ORCID,Foulkes Stephen J23,Mitchell Amy M2,Dausin Christophe4,Van Soest Sofie5,Spencer Luke26,Rowe Stephanie J267,D’Ambrosio Paolo26,Elliott Adrian D8,Van Puyvelde Tim25,Parr Evelyn B1ORCID,Willems Rik59ORCID,Heidbuchel Hein1011ORCID,Claessen Guido912,La Gerche Andre26713ORCID

Affiliation:

1. Exercise and Nutrition Research Program, The Mary MacKillop Institute for Health Research, ACU , Level 5, 215 Spring Street, Melbourne, VIC 3000 , Australia

2. Heart, Exercise and Research Trials (HEART) Lab, St. Vincent’s Institute of Medical Research , 9 Princes Street, Fitzroy, Melbourne, VIC 3065 , Australia

3. Integrated Cardiovascular Exercise Physiology and Rehabilitation Lab, Faculty of Nursing, University of Alberta , Edmonton , Canada

4. Department of Movement Sciences, Exercise Physiology Research Group, KU Leuven , Leuven , Belgium

5. Department of Cardiology, UZ Leuven , Leuven , Belgium

6. Department of Medicine, The University of Melbourne , Melbourne , Australia

7. Department of Cardiology, St. Vincent’s Hospital Melbourne , Melbourne , Australia

8. Centre for Heart Rhythm Disorders, University of Adelaide and Royal Adelaide Hospital , Adelaide , Australia

9. Department of Cardiovascular diseases, KU Leuven , Leuven , Belgium

10. Department of Cardiovascular Sciences, University of Antwerp , Antwerp , Belgium

11. Department of Cardiology, University Hospital Antwerp , Antwerp , Belgium

12. Faculty of Medicine and Life Sciences, UHasselt, Biomedical Research Institute , Hasselt , Belgium

13. HEART Lab, Victor Chang Cardiovascular Research Institute , Sydney , Australia

Abstract

Abstract Aims Blood pressure (BP) responses to exercise are frequently measured, with the concern that greater increases are a marker of disease. We sought to characterize the normal exercise BP response in healthy adults and its relationships with age, sex, and fitness. Methods and results Five hundred and eighty-nine participants [median age 46 (interquartile range 24–56) years, 81% male] underwent cardiopulmonary exercise testing with repeated, automated BP measures. An exaggerated maximal systolic BP (SBPmax) was defined from current guidelines as ≥210 mmHg in males and ≥190 mmHg in females. Individual linear regression analyses defined the relationship between BP and workload (W; SBP/W-slope and DBP/W-slope). Participants with or without an exaggerated SBPmax and above- or below-median SBP/W-slope were compared. An exaggerated SBPmax was found in 51% of males and 64% of females and was more prevalent in endurance-trained athletes (males 58%, females 72%, P < 0.001). The mean SBP/W-slope was lower in males (0.24 ± 0.10 mmHg/W) than females (0.27 ± 0.12 mmHg/W, P = 0.031). In both sexes, peak oxygen uptake (VO2peak) was inversely correlated with SBP/W-slope (P < 0.01). Those with an exaggerated SBPmax and below-median SBP/W-slope were 10 years younger and had a 20% higher VO2peak, on average (P < 0.001). A non-exaggerated SBPmax and above-median SBP/W-slope was observed in older individuals with the lowest VO2peak. Conclusion In a large cohort of healthy individuals, an exaggerated SBPmax was common and associated with higher fitness. In contrast, higher SBP indexed to W was associated with older age, lower fitness, and female sex. Thus, sex, age, and fitness should be considered when evaluating BP response to exercise. Registration Pro@Heart: NCT05164328, ACTRN12618000716268; ProAFHeart: ACTRN12618000711213; Master@Heart: NCT03711539

Funder

Australian Government Research Training Program Scholarship

Fund for Scientific Research Flanders

National Health and Medical Research Council of Australia Investigator Grant

Publisher

Oxford University Press (OUP)

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