%0 Generic
%A S., Girotra
%A D.W., Kitzman
%A W.J., Kop
%A P.K., Stein
%A J.S., Gottdiener
%A K.J., Mukamal
%D 2012
%T Supplementary Material for: Heart Rate Response to a Timed Walk and Cardiovascular Outcomes in Older Adults: The Cardiovascular Health Study
%U https://karger.figshare.com/articles/dataset/Supplementary_Material_for_Heart_Rate_Response_to_a_Timed_Walk_and_Cardiovascular_Outcomes_in_Older_Adults_The_Cardiovascular_Health_Study/5123566
%R 10.6084/m9.figshare.5123566.v1
%2 https://ndownloader.figshare.com/files/8709487
%K Coronary heart disease
%K Exercise
%K Heart rate
%K Elderly
%X Objectives: To determine the relationship between heart rate response during low-grade physical exertion (6-min walk) with mortality and adverse cardiovascular outcomes in the elderly. Methods: Participants in the Cardiovascular Health Study who completed a 6-min walk test were included. We used delta heart rate (difference between postwalk heart rate and resting heart rate) as a measure of chronotropic response and examined its association with (1) all-cause mortality and (2) incident coronary heart disease event, using multivariable Cox regression models. Results: We included 2,224 participants (mean age 77 ± 4 years; 60% women; 85% white). The average delta heart rate was 26 beats/min. Participants in the lowest tertile of delta heart rate (<20 beats/min) had higher risk-adjusted mortality [hazard ratio (HR) 1.18, 95% confidence interval (CI) 1.00–1.40] and incident coronary heart disease (HR 1.37, 95% CI 1.05–1.78) compared to subjects in the highest tertile (≥30 beats/min), with a significant linear trend across tertiles (p for trend <0.05 for both outcomes). This relationship was not significant after adjustment for distance walked. Conclusion: Impaired chronotropic response during a 6-min walk test was associated with an increased risk of mortality and incident coronary heart disease among the elderly. This association was attenuated after adjusting for distance walked.
%I Karger Publishers