4.6 Article

Association of Blood Pressure and Heart Rate Responses to Submaximal Exercise With Incident Heart Failure: The Framingham Heart Study

Journal

Publisher

WILEY
DOI: 10.1161/JAHA.120.019460

Keywords

exercise; heart failure; hemodynamics

Funding

  1. National Heart, Lung, and Blood Institute [NO1-HC-25195, HHSN268201500001I, 75N92019D00031, 5T32HL125232]
  2. PRIMER Promoting Research in Medical Residency program from the National Heart, Lung, and Blood Institute [1R38HL143584]
  3. National Institute of Health [R01HL142983, R01HL126136, R01HL131029]
  4. Evans Medical Foundation
  5. Jay and Louis Coffman Endowment from the Department of Medicine, Boston University School of Medicine

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This study found that individuals with elevated diastolic blood pressure during exercise and slower recovery of systolic blood pressure and heart rate after exercise are at higher risk for heart failure with reduced ejection fraction.
Background Exercise stress tests are conventionally performed to assess risk of coronary artery disease. Using the FHS (Framingham Heart Study) Offspring cohort, we related blood pressure (BP) and heart rate responses during and after submaximal exercise to the incidence of heart failure (HF). Methods and Results We evaluated Framingham Offspring Study participants (n=2066; mean age, 58 years; 53% women) who completed 2 stages of an exercise test (Bruce protocol) at their seventh examination (1998-2002). We measured pulse pressure, systolic BP, diastolic BP, and heart rate responses during stage 2 exercise (2.5 mph at 12% grade). We calculated the changes in systolic BP, diastolic BP, and heart rate from stage 2 to recovery 3 minutes after exercise. We used Cox proportional hazards regression to relate each standardized exercise variable (during stage 2, and at 3 minutes of recovery) individually to HF incidence, adjusting for standard risk factors. On follow-up (median, 16.8 years), 85 participants developed new-onset HF. Higher exercise diastolic BP was associated with higher HF with reduced ejection fraction (ejection fraction <50%) risk (hazard ratio [HR] per SD increment, 1.26; 95% CI, 1.01-1.59). Lower stage 2 pulse pressure and rapid postexercise recovery of heart rate and systolic BP were associated with higher HF with reduced ejection fraction risk (HR per SD increment, 0.73 [95% CI, 0.57-0.94]; 0.52 [95% CI, 0.35-0.76]; and 0.63 [95% CI, 0.47-0.84], respectively). BP and heart rate responses to submaximal exercise were not associated with risk of HF with preserved ejection fraction (ejection fraction >= 50%). Conclusions Accentuated diastolic BP during exercise with slower systolic BP and heart rate recovery after exercise are markers of HF with reduced ejection fraction risk.

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