Elsevier

The Journal of Pediatrics

Volume 154, Issue 2, February 2009, Pages 278-283.e2
The Journal of Pediatrics

Original article
Parent Modeling: Perceptions of Parents' Physical Activity Predict Girls' Activity throughout Adolescence

https://doi.org/10.1016/j.jpeds.2008.07.044Get rights and content

Objectives

To determine whether parent modeling of physical activity (PA) has a differential impact on girls' PA by race, whether the association declines with time, and to assess the contribution of parent modeling to girls' activity relative to other potential predictors.

Study design

Longitudinal examination of parent modeling's impact on future log transformed metabolic equivalents (log METs) of leisure-time PA in 1213 African-American and 1166 Caucasian girls in the National Heart, Lung, and Blood Institute Growth and Health Study, from age 9 to 10 years through 18 to 19 years, using linear regression. Race interaction terms and time trends were examined.

Results

Girls' perceptions of parent modeling significantly predicted future log METs in each study year; associations remained stable with time and were similar by race. Girls' perception of parent PA better predicted girl log METs than did parent self-report. On average, girls reporting that their parents exercised ≥3x/week were about 50% more active than girls with sedentary parents.

Conclusions

Girls' perception of parent activity predicts PA for girls throughout adolescence, despite age-associated decreases in PA. We did not find differences in this association by race. Interventions designed to increase parental activity may improve parent health, positively influence daughters' activity, and begin to address disparities in cardiovascular health.

Section snippets

Methods

The National Growth and Health Study was a multi-center prospective study observing 1213 African-American and 1166 Caucasian girls from 1987 to 1997. Girls were enrolled at 9 or 10 years of age from the Washington, DC, Cincinnati, and San Francisco metropolitan areas. In the 10 years of follow-up, data were available for 91% of African-American girls and 88% of Caucasian girls. The study design and baseline characteristics have been reported.13

Results

Study subjects were from diverse socioeconomic backgrounds (Table I; available at www.jpeds.com). As reported previously,5 by year 7 approximately one-third of girls reported no leisure-time PA. Table II (available at www.jpeds.com) shows the range of METs reported in each year, by tertile of the METs index (the distribution of METs in each year has been previously reported5).

Girls' perception of parent activity and parent self-reported activity were correlated in each year, (βs .27 to .64, P <

Discussion

In 2000, on the basis of a thorough review of 108 studies, Sallis et al reported that parent PA had been “frequently studied with considerable lack of consistency” with respect to its ability to predict child activity.12 Since then, 6 studies have demonstrated an association between parent modeling and PA in adolescents who were largely Caucasian,9, 10, 11, 18, 19, 20 and 3 studies examining the relationship found no association for African-American girls,21, 22, 23 the group at greatest risk

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    Supported by K23HD054470-01A1 from the NICHD. The authors declare no conflicts of interest.

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