Abstract 13457: The Relation of Physical Activity With Accelerometry and Adipose Tissue Depots in a Community-Based Sample of Adults: The Framingham Third Generation Cohort
Background: Physical inactivity is an important factor leading to obesity. We examined the relation between objectively measured physical activity by accelerometry and subcutaneous adipose tissue (SAT) and visceral adipose tissue (VAT) in a community-based sample.
Methods: We evaluated 856 participants of the Framingham Third Generation cohort (mean age 51.3 years, 43.5% women) who underwent assessment of moderate-to-vigorous physical activity (MVPA) with acelerometry over 5 to 7 days, and Multi-detector Computed Tomography for measurement of SAT and VAT. MVPA was measured in both total minutes and categorized as meeting MVPA guidelines if ≥150 minutes per week of total MVPA was achieved. Separate sex-specific regression models were used to examine the cross-sectional relations of the MVPA measures (exposure) to SAT and VAT (regression outcome) adjusting for age and education.
Results: The mean total MVPA was 24 minutes/day in women and 29 minutes/day in men and 75% of the sample completed 7 days of accelerometer wear. In women, increased levels of MVPA were significantly associated with lower levels of VAT and SAT (Table). In men, MVPA was not associated with SAT; however, men who met the MVPA guidelines had significantly less VAT. In both women and men the relation of MVPA with VAT persisted after BMI adjustment.
Conclusions: MVPA is associated with less VAT and SAT in women. Meeting MVPA guidelines is associated with lower VAT in both men and women although the relation is stronger in women.
- © 2011 by American Heart Association, Inc.