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Full-Text Articles in Life Sciences
Evaluating A Model Of Youth Physical Activity, Carrie D. Heitzler, Leslie A. Lytle, Darin J. Erickson, Daheia Barr-Anderson, John R. Sirard, Mary Story
Evaluating A Model Of Youth Physical Activity, Carrie D. Heitzler, Leslie A. Lytle, Darin J. Erickson, Daheia Barr-Anderson, John R. Sirard, Mary Story
John Sirard
Objective—To explore the relationship between social influences, self-efficacy, enjoyment, and barriers and physical activity. Methods—Structural equation modeling examined relationships between parent and peer support, parent physical activity, individual perceptions, and objectively measured physical activity using accelerometers among a sample of youth aged 10–17 years (N=720). Results—Peer support, parent physical activity, and perceived barriers were directly related to youth activity. The proposed model accounted for 14.7% of the variance in physical activity. Conclusions—The results demonstrate a need to further explore additional individual, social, and environmental factors that may influence youth’s regular participation in physical activity.
Relationships Between Energy Balance Knowledge And The Home Environment, Megan E. Slater, John R. Sirard, Melissa N. Laska, Mark A. Pereira, Leslie A. Lytle
Relationships Between Energy Balance Knowledge And The Home Environment, Megan E. Slater, John R. Sirard, Melissa N. Laska, Mark A. Pereira, Leslie A. Lytle
John Sirard
Certain aspects of the home environment as well as individuals’ knowledge of energy balance are believed to be important correlates of various dietary and physical activity behaviors, but no known studies have examined potential relationships between these correlates. This study evaluated cross-sectional associations between characteristics of the home environment and energy balance knowledge among 349 youth/parent pairs recruited from the Minneapolis-St. Paul metropolitan area from September 2006 to June 2007. Linear regression models adjusted for student grade and highest level of parental education were used to compare data from home food, physical activity, and media inventories (parent-reported) with energy balance …