Objectively Assessed Physical Activity, Sedentary Time, and Coronary Artery Calcification in Healthy Older Adults

Abstract

Objective-Physical activity is related to lower risk of cardiovascular disease, but data relating to coronary lesions have been conflicting. These inconsistencies may in part be due to unreliable assessment of physical activity and limitations imposed by self-reported data. The purpose of this study was to determine the relationship between objectively measured physical activity and coronary artery calcium (CAC). Methods and Results-Participants were 443 healthy men and women (mean ageϭ66Ϯ6 years), without history or objective signs of coronary heart disease, drawn from the Whitehall II epidemiological cohort. Physical activity was objectively measured using accelerometers worn during waking hours for 7 consecutive days (average daily wear timeϭ889Ϯ68 minutes/day). CAC was measured in each participant using electron beam computed tomography and was quantified according to the Agatston scoring system. On average, 54.4% of the sample recorded at least 30 minutes/day of moderate to vigorous physical activity (MVPA

Daily Physical Activity in Stable Heart Failure Patients

“…(2012) showed that 54.4% of healthy adults with a mean age of 66 (±6) years was at least 30 minutes/day physically active at moderate intensity, 36 compared to 56% of the HF patients in the present study. The time that stable outpatients with HF spent on activities at moderate intensity is also comparable with patients with congenital heart disease (54 ± SD 55 versus 59± SD 40 min/day respectively).…”

Adipose tissue compartments, muscle mass, muscle fat infiltration, and coronary calcium in institutionalized frail nonagenarians

“…In addition, it has been shown that a slow habitual walking pace is negatively associated with coronary artery calcium [16], whereas this association was not observed in older individuals [17]. Because poor gait ability and physical activity levels are hallmarks of frailty syndrome, it would be interesting to investigate the calcium score in frail individuals, comparing its values with robust oldest old.…”

Daily physical activity impact in old women bone density and grip strength

“…VPA group was statistically younger than MPA group, and the impact of age in the accomplishment of higher levels of physical activity intensity by younger women was of 18%. It is common to find differences between younger and older groups of age with respect to either intensity or quantity of daily physical activity results (26)(27)(28), independently of the cut-point used. Other studies also reveal negative correlations between age and minutes of physical activity (12).…”