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Sardana M, Lin H, Zhang Y, Liu C, Trinquart L, Benjamin EJ, Manders ES, Fusco K, Kornej J, Hammond MM, Spartano N, Pathiravasan CH, Kheterpal V, Nowak C, Borrelli B, Murabito JM, McManus DD
Association of Habitual Physical Activity With Home Blood Pressure in the Electronic Framingham Heart Study (eFHS): Cross-sectional Study
Association of Habitual Physical Activity with Home Blood Pressure: Insights from the electronic Framingham Heart Study (eFHS)
Mayank Sardana;
Honghuang Lin;
Yuankai Zhang;
Chunyu Liu;
Ludovic Trinquart;
Emelia J Benjamin;
Emily S Manders;
Kelsey Fusco;
Jelena Kornej;
Michael M Hammond;
Nicole Spartano;
Chathurangi H Pathiravasan;
Vik Kheterpal;
Chris Nowak;
Belinda Borrelli;
Joanne M Murabito;
David D McManus
ABSTRACT
Background:
When studied in community-based samples, the association of physical activity (PA) and blood pressure (BP) remains controversial and is perhaps, dependent on the intensity of PA. Prior studies have not explored the association of smartwatch measured PA with home BP.
Objective:
To study the association of daily step count with home BP
Methods:
Consenting electronic Framingham Heart Study (eFHS) participants were provided with a study smartwatch (Apple Watch Series 0) and Bluetooth enabled home BP cuff. Participants were instructed to wear the watch daily and transmit BP values weekly. We measured habitual PA as the average daily step count by smartwatch. We estimated the association between PA and average home BP using linear mixed effects models adjusting for age, sex, wear time, antihypertensive use, and familial structure.
Results:
We studied 660 eFHS participants (mean age 53±9 years, 59% women, 9% non-white) who wore the smartwatch 5 hours per day for 30 days and transmitted ≥3 BP readings. Average daily step count was 7595 ± 2718. Average home systolic and diastolic BP (mmHg) were 122±12 and 76±8. Every 1000 higher step count was associated with 0.49 mm Hg lower home systolic BP and 0.36 mm Hg lower home diastolic BP (P value for both<0.01). The association, however, was attenuated and became statistically non-significant with further adjustment for body mass index (BMI).
Conclusions:
: In this community-based sample of adults, higher daily habitual PA measured by a smartwatch was associated with lower home BP. Differences in BMI among study participants accounted for the majority of the observed association. Clinical Trial: n/a
Citation
Please cite as:
Sardana M, Lin H, Zhang Y, Liu C, Trinquart L, Benjamin EJ, Manders ES, Fusco K, Kornej J, Hammond MM, Spartano N, Pathiravasan CH, Kheterpal V, Nowak C, Borrelli B, Murabito JM, McManus DD
Association of Habitual Physical Activity With Home Blood Pressure in the Electronic Framingham Heart Study (eFHS): Cross-sectional Study
