The Colorado LEAP study: rationale and design of a study to assess the short term longitudinal effectiveness of a preschool nutrition and physical activity program

BMC Public Health

Richard E Boles³  William J Gavin²  Jennifer Anderson¹  Patricia L Davies⁴  Susan L Johnson³  Laura L Bellows¹ 

[1] Colorado State University, Department of Food Science & Human Nutrition, 1571 Campus Delivery, Fort Collins, CO 80523-1571, USA;Department of Human Development & Family Studies, Colorado State University, Fort Collins, CO 80523, USA;Department of Pediatrics, Section of Nutrition, University of Colorado Denver Anschutz Medical Campus, Aurora, CO 80045, USA;Department of Occupational Therapy, Colorado State University, Fort Collins, CO 80523, USA

关键词: Longitudinal;    Intervention;    Early childhood;    Preschool;    Social ecological model;    Obesity;   

Others  :  1161483
DOI  :  10.1186/1471-2458-13-1146

 received in 2013-10-17, accepted in 2013-12-04,  发布年份 2013

【 摘 要 】

Background

The preschool years are a critical window for obesity prevention efforts; representing a time when children establish healthy eating habits and physical activity patterns. Understanding the context in which these behaviors develop is critical to formulating a model to address childhood obesity. The Colorado LEAP Study, an intervention study designed to prevent early childhood obesity, utilizes a social ecological approach to explore individual, family and environmental factors and their relationship to child weight status over a 3 year timeframe.

Methods

The study is located in 5 rural Colorado preschool centers and elementary schools (2 treatment and 3 control). Treatment sites receive The Food Friends® nutrition (12 weeks) and physical activity (18 weeks) interventions during preschool. Observational measures assess 3 layers of the social ecological model including individual, family and organizational inputs. Children’s food preferences, food intake, gross motor skills, physical activity (pedometers/accelerometers), cognitive, physical and social self-competence and height/weight are collected. Parents provide information on feeding and activity practices, child’s diet, oral sensory characteristics, food neophobia, home food and activity environment, height/weight and physical activity (pedometers). School personnel complete a school environment and policy assessment. Measurements are conducted with 3 cohorts at 4 time points – baseline, post-intervention, 1- and 2-year follow-up.

Discussion

The design of this study allows for longitudinal exploration of relationships among eating habits, physical activity patterns, and weight status within and across spheres of the social ecological model. These methods advance traditional study designs by allowing not only for interaction among spheres but predictively across time. Further, the recruitment strategy includes both boys and girls from ethnic minority populations in rural areas and will provide insights into obesity prevention effects on these at risk populations.

Trial registration

ClinicalTrials.gov: NCT01937481.

【 授权许可】

   
2013 Bellows et al.; licensee BioMed Central Ltd.

【 图 表 】

Figure 1.

Figure 2.

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