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Cardiorespiratory fitness, fatness, and the acute blood pressure response to exercise in adolescence

Citation

Huang, Z and Park, C and Chaturvedi, N and Howe, LD and Sharman, JE and Hughes, AD and Schultz, MG, Cardiorespiratory fitness, fatness, and the acute blood pressure response to exercise in adolescence, Scandinavian Journal of Medicine and Science in Sports Article online ahead of print. ISSN 0905-7188 (2021) [Refereed Article]

Copyright Statement

Copyright 2021 John Wiley & Sons A/S. Published by John Wiley & Sons Ltd

DOI: doi:10.1111/sms.13976

Abstract

Objective: Exaggerated exercise blood pressure (BP) is associated with cardiovascular risk factors in adolescence. Cardiorespiratory fitness and adiposity (fatness) are independent contributors to cardiovascular risk, but their interrelated associations with exercise BP are unknown. This study aimed to determine the relationships between fitness, fatness, and the acute BP response to exercise in a large birth cohort of adolescents.

Methods: 2292 adolescents from the Avon Longitudinal Study of Parents and Children (aged 17.8 0.4 years, 38.5% male) completed a sub-maximal exercise step test that allowed fitness (VO2 max) to be determined from workload and heart rate using a validated equation. Exercise BP was measured immediately on test cessation and fatness calculated as the ratio of total fat mass to total body mass measured by DXA.

Results: Post-exercise systolic BP decreased stepwise with tertile of fitness (146 (18); 142 (17); 141 (16) mmHg) but increased with tertile of fatness (138 (15); 142 (16); 149 (18) mmHg). In separate models, fitness and fatness were associated with post-exercise systolic BP adjusted for sex, age, height, smoking, and socioeconomic status (standardized β: −1.80, 95%CI: −2.64, −0.95 mmHg/SD and 4.31, 95%CI: 3.49, 5.13 mmHg/SD). However, when fitness and fatness were included in the same model, only fatness remained associated with exercise BP (4.65, 95%CI: 3.69, 5.61 mmHg/SD).

Conclusion: Both fitness and fatness are associated with the acute BP response to exercise in adolescence. The fitness-exercise BP association was not independent of fatness, implying the cardiovascular protective effects of cardiorespiratory fitness may only be realized with more favorable body composition.

Item Details

Item Type:Refereed Article
Keywords:exercise, blood pressure, hypertension, public health
Research Division:Health Sciences
Research Group:Sports science and exercise
Research Field:Exercise physiology
Objective Division:Health
Objective Group:Clinical health
Objective Field:Prevention of human diseases and conditions
UTAS Author:Huang, Z (Ms Huang Zhengzheng)
UTAS Author:Sharman, JE (Professor James Sharman)
UTAS Author:Schultz, MG (Dr Martin Schultz)
ID Code:144753
Year Published:2021
Deposited By:Menzies Institute for Medical Research
Deposited On:2021-06-08
Last Modified:2021-09-14
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