Joint Effects of Physical Activity and BMI on Risk of Hypertension in Women: A Longitudinal Study

Introduction. There is debate as to whether physical activity counteracts the adverse effect of weight on health outcomes. We investigated how physical activity modifies the effect of body mass index (BMI) on hypertension risk. Methods. BMI, physical activity, and hypertension were measured at basel...

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Main Authors: Caroline Jackson, Gerrie-Cor Herber-Gast, Wendy Brown
Format: Article
Language:English
Published: Wiley 2014-01-01
Series:Journal of Obesity
Online Access:http://dx.doi.org/10.1155/2014/271532
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author Caroline Jackson
Gerrie-Cor Herber-Gast
Wendy Brown
author_facet Caroline Jackson
Gerrie-Cor Herber-Gast
Wendy Brown
author_sort Caroline Jackson
collection DOAJ
description Introduction. There is debate as to whether physical activity counteracts the adverse effect of weight on health outcomes. We investigated how physical activity modifies the effect of body mass index (BMI) on hypertension risk. Methods. BMI, physical activity, and hypertension were measured at baseline and at three-year interval for 14 years (from 1996 to 2010), in 10,339 participants in the Australian Longitudinal Study on Women’s Health. Generalised estimating equation models for binary repeated measures were performed to determine the individual and joint effects of BMI and physical activity on incident hypertension. Results. At baseline (mean age 47.6±1.5 SD), 57% were healthy weight, 28% overweight, and 14% obese. Increasing BMI and decreasing physical activity were associated with increased risk of hypertension. Physical activity attenuated the positive association between weight and risk of hypertension, especially for obese women. Compared to healthy weight high active women, risk of hypertension in obese high active women was 3.4 times greater (OR 3.43, 95% CI 2.68, 4.39) and in obese inactive women 4.9 times greater (OR 4.91, 95% CI 3.92, 6.13). Conclusions. Both physical activity and maintenance of a healthy body weight are associated with lower risk of hypertension. Physical activity reduced but did not remove the effect of obesity on hypertension risk.
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spelling doaj-art-0ffbee4f708440308bcdb0986ad0e2fb2025-02-03T01:32:11ZengWileyJournal of Obesity2090-07082090-07162014-01-01201410.1155/2014/271532271532Joint Effects of Physical Activity and BMI on Risk of Hypertension in Women: A Longitudinal StudyCaroline Jackson0Gerrie-Cor Herber-Gast1Wendy Brown2Centre for Longitudinal and Life Course Research, School of Population Health, University of Queensland, Herston Road, Brisbane, QLD 4006, AustraliaCentre for Longitudinal and Life Course Research, School of Population Health, University of Queensland, Herston Road, Brisbane, QLD 4006, AustraliaSchool of Human Movement Studies, University of Queensland, Blair Drive, St. Lucia, Brisbane, QLD 4072, AustraliaIntroduction. There is debate as to whether physical activity counteracts the adverse effect of weight on health outcomes. We investigated how physical activity modifies the effect of body mass index (BMI) on hypertension risk. Methods. BMI, physical activity, and hypertension were measured at baseline and at three-year interval for 14 years (from 1996 to 2010), in 10,339 participants in the Australian Longitudinal Study on Women’s Health. Generalised estimating equation models for binary repeated measures were performed to determine the individual and joint effects of BMI and physical activity on incident hypertension. Results. At baseline (mean age 47.6±1.5 SD), 57% were healthy weight, 28% overweight, and 14% obese. Increasing BMI and decreasing physical activity were associated with increased risk of hypertension. Physical activity attenuated the positive association between weight and risk of hypertension, especially for obese women. Compared to healthy weight high active women, risk of hypertension in obese high active women was 3.4 times greater (OR 3.43, 95% CI 2.68, 4.39) and in obese inactive women 4.9 times greater (OR 4.91, 95% CI 3.92, 6.13). Conclusions. Both physical activity and maintenance of a healthy body weight are associated with lower risk of hypertension. Physical activity reduced but did not remove the effect of obesity on hypertension risk.http://dx.doi.org/10.1155/2014/271532
spellingShingle Caroline Jackson
Gerrie-Cor Herber-Gast
Wendy Brown
Joint Effects of Physical Activity and BMI on Risk of Hypertension in Women: A Longitudinal Study
Journal of Obesity
title Joint Effects of Physical Activity and BMI on Risk of Hypertension in Women: A Longitudinal Study
title_full Joint Effects of Physical Activity and BMI on Risk of Hypertension in Women: A Longitudinal Study
title_fullStr Joint Effects of Physical Activity and BMI on Risk of Hypertension in Women: A Longitudinal Study
title_full_unstemmed Joint Effects of Physical Activity and BMI on Risk of Hypertension in Women: A Longitudinal Study
title_short Joint Effects of Physical Activity and BMI on Risk of Hypertension in Women: A Longitudinal Study
title_sort joint effects of physical activity and bmi on risk of hypertension in women a longitudinal study
url http://dx.doi.org/10.1155/2014/271532
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