Valid assessment of physical activity is important to researchers and practitioners interested
in surveillance, screening, programme evaluation and intervention. The validity of an …

Valid assessment of physical activity is necessary to fully understand this important health-
related behaviour for research, surveillance, intervention and evaluation purposes. This …

Vitamin D deficiency has been linked to an increased risk of hypertension, diabetes,
congestive heart failure, peripheral arterial disease, myocardial infarction, stroke, and …

OBJECTIVE: Evidence on the association of vitamin D with cardiovascular risk factors in
youth is very limited. We examined whether low serum vitamin D levels (25-hydroxyvitamin …

ABSTRACT MARSHALL, SJ, DA JONES, BE AINSWORTH, JP REIS, SS LEVY, and CA
MACERA. Race/Ethnicity, Social Class, and Leisure-Time Physical Inactivity. Med. Sci …

Importance Little is known regarding the association between level of blood pressure (BP) in
young adulthood and cardiovascular disease (CVD) events by middle age. Objective To …

OBJECTIVE—Accumulating research suggests low-circulating vitamin D concentrations, ie,
25-hydroxyvitamin-D [25 (OH) D], may be associated with an increased prevalence of …

Importance Coronary artery calcium (CAC) is associated with coronary heart disease (CHD)
and cardiovascular disease (CVD); however, prognostic data on CAC are limited in younger …

Background Incident cardiovascular disease (CVD) increases with increasing low-density
lipoprotein cholesterol (LDL-C) concentration and exposure duration. Area under the LDL-C …

Objective Previous research on the combined association of 25-hydroxyvitamin D (25 (OH)
D) and parathyroid hormone (PTH) with metabolic syndrome may have been limited by …