Heart rate response to a timed walk and cardiovascular outcomes in older adults: the cardiovascular health study.

ABSTRACT:

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 r

SUBMITTER: Girotra S 

PROVIDER: S-EPMC3516408 | biostudies-literature | 2012

REPOSITORIES: biostudies-literature