Article

Physical activity (PA) is recommended for primary and secondary
prevention of cardiovascular disease (CVD). This study described the prevalence
of self-reported and accelerometer-measured PA and sedentary behavior, using a
nationally representative sample from the United States, a subset of whom had
CVD, including angina, coronary heart disease (CHD), congestive heart failure
(CHF), and myocardial infarction (MI). METHODS: Using the most recently available
accelerometer data (combined 2003-2006) from the National Health and Nutrition
Examination Survey, the study sample included 680 adults with CVD, who completed
a questionnaire and wore an ActiGraph accelerometer for 1 week. A group without
CVD (n = 1000) was also selected as the referent, with similar age, gender, and
race/ethnic distributions as those with CVD (angina, CHD, CHF, MI) to compare PA
and sedentary behavior estimates. Percentages and means were weighted to reflect
the US population from 2003 to 2006. RESULTS: Among those with CVD, the
proportion of individuals who engaged in self-reported past-month,
moderate-intensity leisure activity ranged from 39.7% (CHF) to 53.8% (CHD) and
vigorous-intensity leisure activity from 12.9% (CHF) to 18.4% (CHD), with walking
being the most commonly reported activity. Television watching >/=4 h/d ranged
from 36.2% (MI) to 44.8% (CHF). Using accelerometry, moderate- to
vigorous-intensity PA ranged from 8.6 (CHF) to 11.4 min/d (angina). Sedentary
behavior ranged from 9.6 (angina) to 10.1 h/d (CHF). All 4 CVD groups had lower
leisure activity and moderate- to vigorous-intensity PA, and higher television
watching and sedentary behavior, when compared with the referent group.
CONCLUSIONS: Further efforts are needed to encourage PA and reduce sedentary
behavior for secondary prevention of CVD.

Langue : ANGLAIS