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. 2007 Feb;33(1):80-9.
doi: 10.1207/s15324796abm3301_9.

A cohort-sequential latent growth model of physical activity from ages 12 to 17 years

Susan C Duncan  1 , Terry E Duncan, Lisa A Strycker, Nigel R Chaumeton
Affiliations

A cohort-sequential latent growth model of physical activity from ages 12 to 17 years

Susan C Duncan et al. Ann Behav Med. 2007 Feb.

Abstract

Background: Despite serious public health implications of decreased physical activity during adolescence, few longitudinal studies have been conducted to determine the trajectory and important correlates of physical activity change during this period.

Purpose: This study examines change in physical activity from ages 12 to 17 years and the influences of personal, family, peer, and demographic factors on activity patterns.

Methods: Data were from 371 youth. The sample was 50.1% female, 76% White, 12% African American, 4% Hispanic, 2% Asian, 2% American Indian, and 4% other or mixed races. Mean age was 12.05 years (SD = 1.63) at Time 1. Multivariate latent growth curve modeling (LGM), a cohort-sequential design, and a multiple-group design by sex were employed.

Results: Youth physical activity declined significantly from ages 12 to 17. Boys had higher initial levels of physical activity than girls. Efficacy to overcome barriers, physically active friends, and friend social support all played roles in reducing the decline in physical activity. Early maturing boys, although more physically active initially, experienced a greater decline in physical activity compared to later maturing boys.

Conclusions: These findings encourage further research on the etiology and development of youth physical activity using procedures such as LGM to better understand the risk and protective factors associated with youth physical activity decline.

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Figures

Figure 1
Figure 1
Representation of the cohort-sequential curve-of-factors latent growth model.
See this image and copyright information in PMC

References

    1. Sallis JF. Epidemiology of physical activity and fitness in children and adolescents. Clinical Reviews in Food Science and Nutrition. 1993;33:403–408. - PubMed
    1. Dzewaltowski DA, Estabrooks PA, Johnston JA. Healthy youth places promoting nutrition and physical activity. Health Education Research. 2002;17:541–551. - PubMed
    1. Kimm SYS, Glynn NW, Kriska AM, Fitzgerald SL, Aaron DJ, Similo SL, et al. Longitudinal changes in physical activity in a biracial cohort during adolescence. Medicine and Science in Sports and Exercise. 2000;32:1445–1454. - PubMed
    1. Brodersen NH, Steptoe A, Williamson S, Wardle J. Sociodemographic, developmental, environmental, and psychological correlates of physical activity and sedentary behavior at age 11 to 12. Annals of Behavioral Medicine. 2005;29:2–11. - PubMed
    1. Heath GW, Pratt M, Warren CW, Kann L. Physical activity patterns in American high school students: Results from the 1990 youth risk behavior survey. Archives of Pediatrics and Adolescent Medicine. 1994;148:1131–1136. - PubMed

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