TY - JOUR
T1 - The association between physical activity and both incident coronary artery calcification and ankle brachial index progression
T2 - The Multi-Ethnic Study of Atherosclerosis
AU - Delaney, Joseph A.C.
AU - Jensky, Nicole E.
AU - Criqui, Michael H.
AU - Whitt-Glover, Melicia C.
AU - Lima, João A.C.
AU - Allison, Matthew A.
N1 - Funding Information:
The research reported in this article was supported by contracts N01-HC95159 through N01-HC-95169 from the National Heart Lung and Blood Institute . Additional research support was provided through National Heart Lung and Blood Institute ( T32 HL079891 ). The authors thank the other investigators and the staff of the MESA study for their valuable contributions. A full list of participating MESA investigators and institutions can be found at http://www.mesa-nhlbi.org .
PY - 2013/10
Y1 - 2013/10
N2 - Objective: Both coronary artery calcification (CAC) and the ankle brachial index (ABI) are measures of subclinical atherosclerotic disease. The influence of physical activity on the longitudinal change in these measures remains unclear. To assess this relation we examined the association between these measures and self-reported physical activity in the Multi-Ethnic Study of Atherosclerosis (MESA). Methods: At baseline, the MESA participants were free of clinically evident cardiovascular disease. We included all participants with an ABI between 0.90 and 1.40 (. n=5656). Predictor variables were based on self-reported measures with physical activity being assessed using the Typical Week Physical Activity Survey from which metabolic equivalent-minutes/week of activity were calculated. We focused on physical activity intensity, intentional exercise, sedentary behavior, and conditioning. Incident peripheral artery disease (PAD) was defined as the progression of ABI to values below 0.90 (given the baseline range of 0.90-1.40). Incident CAC was defined as a CAC score >0 Agatston units upon follow up with a baseline score of 0 Agatston units. Results: Mean age of participants was 61 years, 53% were female, and mean body mass index was 28kg/m2. After adjusting for traditional cardiovascular risk factors and socioeconomic factors, intentional exercise was protective for incident peripheral artery disease (Relative Risk (RR)=0.85, 95% Confidence Interval (CI): 0.74-0.98). After adjusting for traditional cardiovascular risk factors and socioeconomic factors, there was a significant association between vigorous PA and incident CAC (RR=0.97, 95% CI: 0.94-1.00). There was also a significant association between sedentary behavior and increased amount of CAC among participants with CAC at baseline (δlog (Agatston Units+25)=0.027, 95% CI 0.002, 0.052). Conclusions: These data suggest that there is an association between physical activity/sedentary behavior and the progression of two different measures of subclinical atherosclerotic disease.
AB - Objective: Both coronary artery calcification (CAC) and the ankle brachial index (ABI) are measures of subclinical atherosclerotic disease. The influence of physical activity on the longitudinal change in these measures remains unclear. To assess this relation we examined the association between these measures and self-reported physical activity in the Multi-Ethnic Study of Atherosclerosis (MESA). Methods: At baseline, the MESA participants were free of clinically evident cardiovascular disease. We included all participants with an ABI between 0.90 and 1.40 (. n=5656). Predictor variables were based on self-reported measures with physical activity being assessed using the Typical Week Physical Activity Survey from which metabolic equivalent-minutes/week of activity were calculated. We focused on physical activity intensity, intentional exercise, sedentary behavior, and conditioning. Incident peripheral artery disease (PAD) was defined as the progression of ABI to values below 0.90 (given the baseline range of 0.90-1.40). Incident CAC was defined as a CAC score >0 Agatston units upon follow up with a baseline score of 0 Agatston units. Results: Mean age of participants was 61 years, 53% were female, and mean body mass index was 28kg/m2. After adjusting for traditional cardiovascular risk factors and socioeconomic factors, intentional exercise was protective for incident peripheral artery disease (Relative Risk (RR)=0.85, 95% Confidence Interval (CI): 0.74-0.98). After adjusting for traditional cardiovascular risk factors and socioeconomic factors, there was a significant association between vigorous PA and incident CAC (RR=0.97, 95% CI: 0.94-1.00). There was also a significant association between sedentary behavior and increased amount of CAC among participants with CAC at baseline (δlog (Agatston Units+25)=0.027, 95% CI 0.002, 0.052). Conclusions: These data suggest that there is an association between physical activity/sedentary behavior and the progression of two different measures of subclinical atherosclerotic disease.
KW - Ankle brachial index
KW - Coronary artery calcification
KW - Epidemiology
KW - Physical activity
KW - Prospective cohort study
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U2 - 10.1016/j.atherosclerosis.2013.07.045
DO - 10.1016/j.atherosclerosis.2013.07.045
M3 - Article
C2 - 24075757
AN - SCOPUS:84884511357
SN - 0021-9150
VL - 230
SP - 278
EP - 283
JO - Atherosclerosis
JF - Atherosclerosis
IS - 2
ER -