Physical activity in American schools and body mass index percentile.

The international physical inactivity epidemic among children has contributed to child obesity. Schools can be an effective source of physical activity opportunity. A cross-sectional sample of 1306 American children was drawn from the Panel Study of Income Dynamics - Child Development Supplement, 2007.

Physical activity preferences for low-income sedentary urban African American older adults.

The objective of this study was to determine (a) activity preferences for low-income sedentary urban African American older adults and (b) information needed to deliver a lay physical activity intervention in the community for this population. This descriptive qualitative study used six focus groups. Participants were African American, 55 and older, had low incomes, and had sedentary behavior.

Physical activity and BMI: evidence from the Panel Study of Income Dynamics Child Development Supplement.

Background: This study assessed the association between amount of physical activity and body mass index (BMI) percentile among middle and high school children. Total daily physical activity needs to include both in and out of school physical activity.

Methods: A secondary data analysis was performed on 1306 children drawn from the Panel Study of Income Dynamics Child Development Supplement (CDS III, 2007).