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Full-Text Articles in Life Sciences
Obesogenic Family Types Identified Through Latent Profile Analysis, Brian Martinson, Gabriela Vazquezbenitez, Carrie Patnode, Mary Hearst, Nancy Sherwood, Emily Parker, John Sirard, Keryn Pasch, Leslie Lytle
Obesogenic Family Types Identified Through Latent Profile Analysis, Brian Martinson, Gabriela Vazquezbenitez, Carrie Patnode, Mary Hearst, Nancy Sherwood, Emily Parker, John Sirard, Keryn Pasch, Leslie Lytle
John Sirard
Background—Obesity may cluster in families due to shared physical and social environments. Purpose—This study aims to identify family typologies of obesity risk based on family environments. Methods—Using 2007–2008 data from 706 parent/youth dyads in Minnesota, we applied latent profile analysis and general linear models to evaluate associations between family typologies and body mass index (BMI) of youth and parents. Results—Three typologies described most families with 18.8% “Unenriched/Obesogenic,” 16.9% “Risky Consumer,” and 64.3% “Healthy Consumer/Salutogenic.” After adjustment for demographic and socioeconomic factors, parent BMI and youth BMI Z-scores were higher in unenriched/obesogenic families (BMI difference=2.7, p<0.01 and BMI Z-score difference=0.51, p<0.01, respectively) relative to the healthy consumer/salutogenic typology. In contrast, parent BMI and youth BMI Z-scores were similar in the risky consumer families relative to those in healthy consumer/salutogenic type. Conclusions—We can identify family types differing in obesity risks with implications for public health interventions.
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.
Physical Activity And Sedentary Activity Patterns Among Children And Adolescents: A Latent Class Analysis Approach, Carrie Heitzler, Leslie Lytle, Darin Erickson, John Sirard, Daheia Barr-Anderson, Marry Story
Physical Activity And Sedentary Activity Patterns Among Children And Adolescents: A Latent Class Analysis Approach, Carrie Heitzler, Leslie Lytle, Darin Erickson, John Sirard, Daheia Barr-Anderson, Marry Story
John Sirard
Background—While much is known about the overall levels of physical activity and sedentary activity among youth, few studies have attempted to define clusters of such behaviors. The purpose of this study was to identify and describe unique classes of youth based on their participation in a variety of physical activity and sedentary behaviors. Methods—Latent class analysis was used to characterize segments of youth based on patterns of self-reported and accelerometer-measured participation in 12 behaviors. Children and adolescents (N=720) from 6th–11th grade were included in the analysis. Differences in class membership were examined using multinomial logistic regression. Results—Three distinct classes emerged …
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 …