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School and family influences on adolescent physical activity, sports participation, and weight status.

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Author	Drake, Keith M.
Title	School and family influences on adolescent physical activity, sports participation, and weight status.
Date	2012
Abstract	Problem Statement: Increasing physical activity is a priority for decreasing obesity rates, but we have a limited understanding of which factors are most influential in promoting physical activity among adolescents. We also do not know what forms of physical activity have the greatest impact on weight status. Methods: Longitudinal telephone surveys were conducted with New Hampshire and Vermont adolescents and their mothers. In Study 1, adolescents (n=1,244) self-reported their sports team participation at baseline (elementary school) and follow-up (high school). Mothers reported their opinion of the importance of children's sports at baseline. We surveyed high school personnel to assess sports opportunities, including the number of sports offered and whether they restricted the number of players on team sports. In Study 2, adolescents (n=1,718) reported their team sports participation, active commuting, and physical education. Weight status was based on self-reported height and weight. Results: Study 1) After controlling for children's baseline sports participation and other covariates, mothers' opinion of the importance of children's sports positively predicted boys' and girls' sports team participation in high school (RR=1.87, p=0.002, RR=2.95, p < 0.001, respectively). At the school level, boys played on more sports teams if their school did not restrict participation in the most popular sports (RR=1.20, p=0.001); in contrast, girls played on more sports teams if they had a wider variety of sports to choose from (RR=1.48, p<0.001). Study 2) Overall, 29.0% of the sample was overweight/obese and 13.0% was obese. After adjustments, sports team participation was inversely related to overweight/obesity and obesity. Active commuting to school was inversely related to obesity. Estimates suggest obesity prevalence would decrease 26.1% (95% CI: 9.4%, 42.8%) if all adolescents played on two sports teams per year and 22.1% (95% CI: 0.1%, 43.3%) if all adolescents walked/biked to school at least four days per week.
Description	ix, 134 leaves : illustrations
Format	application/pdf
Advisor	Dalton, Madeline A. ; Beach, Michael L. ; Mackenzie, Todd ; Titus, Linda J. ; Longacre, Meghan R. ; Rundle, Andrew G.
College	Dartmouth Medical School -- Department of Health Policy and Clinical Practice.
Issuing Body	Dartmouth Dissertations are made available through the Dartmouth Digital Library.
Degree	Thesis (Ph.D)--Dartmouth College.
Copyright	In Copyright. This material is protected by copyright and/or related rights. You are free to use this material in any way that is permitted by copyright law that applies to your use. For other uses, you need to obtain permission from the rights-holder(s). http://rightsstatements.org/page/InC/1.0/
DOI	https://doi.org/10.1349/ddlp.3539

Title	drake2012 1
Full Text	School and Family Influences on Adolescent Physical Activity, Sports Participation, and Weight Status A Thesis Submitted to the Faculty in partial fulfillment of the requirements for the degree of Doctor of Philosophy in Health Policy and Clinical Practice by Keith M. Drake DARTMOUTH COLLEGE Hanover, New Hampshire May, 2012

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