Key result
Ideal physical activity is linked to ~59% lower risk of heart failure hospitalization in Black adults.
Why the study?
Does greater moderate to vigorous physical activity reduce the risk of incident heart failure hospitalizations in Black adults with normal ejection fraction?
Cohort (n=4,066)
No
Does greater moderate to vigorous physical activity reduce the risk of incident heart failure hospitalizations in Black adults with normal ejection fraction?
Demonstrates a dose-response protective association between higher levels of moderate to vigorous physical activity and lower incidence of heart failure hospitalization among Black adults with preserved ejection fraction.
Answers are grounded in this paper and cite their sources.
May support activity assessment in Black adults with preserved EF; extends observational data but leaves open causality.
Background Given high rates of obesity, hypertension, and diabetes mellitus, black persons are at risk to develop heart failure. The association of moderate to vigorous physical activity ( MVPA ) and heart failure in black adults is underresearched. The purpose of this study was to explore whether greater MVPA was associated with lower risk of heart failure hospitalizations (HFHs) among black adults with normal ejection fractions. Methods and Results We performed a prospective analysis of 4066 black adults who participated in the Jackson Heart Study and who had physical activity measured, had normal ejection fraction on 2‐dimensional echocardiograms, and were followed for 7 years for incident HFH. We used Cox proportional regression analyses adjusted for age, sex, body mass index, smoking status, hypertension, diabetes mellitus, chronic obstructive pulmonary disease, coronary heart disease, atrial fibrillation, and chronic kidney disease and examined effect modification by sex and body mass index. Of the eligible population, 1925 participants, according to the duration of MVPA , had poor health (0 minutes/week), 1332 had intermediate health (1–149 minutes/week), and 809 had ideal health (≥150 minutes/week). There were 168 incident HFHs . MVPA for intermediate and ideal health was associated with decreasing risk of incident HFH (hazard ratio: 0.70 [95% confidence interval, 49–1.00] and 0.35 [95% confidence interval, 0.19–0.64], respectively; P trend =0.003). The full model revealed hazard ratios of 0.74 [95% confidence interval, 0.52–1.07] and 0.41 [95% confidence interval, 0.22–0.74], respectively. There was no effect modification between MVPA and body mass index or sex on incident HFH . Conclusions A dose‐response relationship between increasing levels of MVPA and protection from incident HFH was found in black men and women with normal ejection fractions.
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Koo et al. (2017) conducted a cohort in Normal ejection fraction (≥50%) at risk for heart failure (n=4,066). Ideal moderate to vigorous physical activity (≥150 minutes/week) and intermediate MVPA (1-149 minutes/week) vs. Poor physical activity health (0 minutes/week of MVPA) was evaluated on Incident heart failure hospitalization (HFH) (HR 0.41, 95% CI 0.22-0.74, p=0.003 for trend). Ideal moderate to vigorous physical activity (≥150 min/week) was associated with a 59% lower risk of incident heart failure hospitalization (HR 0.41, 95% CI 0.22-0.74) in Black adults with normal EF.
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