Disparities in moderate-to-vigorous physical activity among girls and overweight and obese schoolchildren during school- and out-of-school time

International Journal of Behavioral Nutrition and Physical Activity

Research

Katie Smith¹  Peter Bakun¹  Christina D. Economos¹  Jennifer Sacheck²  Megan P. Mueller²  Kristie Hubbard³  Kenneth Chui³  Rebecca Boulos⁴ 

[1] ChildObesity180, Friedman School of Nutrition Science and Policy, Tufts University, 150 Harrison Avenue, 02111, Boston, MA, USA;Friedman School of Nutrition Science and Policy, Tufts University, 150 Harrison Avenue, 02111, Boston, MA, USA;Tufts University School of Medicine, Public Health and Community Medicine, 145 Harrison Avenue, 02111, Boston, MA, USA;University of New England, School of Community and Population Health, 11 Hills Beach Rd, 04005, Biddeford, ME, USA;

关键词: Physical Activity;    Weight Status;    Activity Count;    Physical Activity Program;    Wear Time;   

DOI  :  10.1186/s12966-016-0358-x

 received in 2015-08-27, accepted in 2016-03-02,  发布年份 2016

来源: Springer

【 摘 要 】

BackgroundIncreasing physical activity (PA) during the school day and out-of-school time are critical strategies for preventing childhood obesity and improving overall health. The purpose of the present investigation was to examine schoolchildren’s volume and type of PA during school-time and out-of-school, compared to national recommendations and differences by sex and weight status.MethodsThis cross-sectional analysis included 517 3rd-5th grade schoolchildren from 13 New England elementary schools (October 2013-January 2014). Demographics were collected by parent questionnaire. Measured height and weight were used to categorize child weight status. Accelerometer data were collected over 7 days. PA was coded as total activity counts and minutes of sedentary, light, and moderate-to-vigorous physical activity (SED, LPA, MVPA) during 1) school, 2) weekday out-of-school, 3) weekend, and 4) total daily time. Multivariable mixed models were used to examine associations between sex and weight status and total counts, SED, LPA, and MVPA, controlling for demographics, wear-time, and clustering within schools.Results453 participants (60.5 % girls; mean age 9.1 years; 30.5 % overweight/obese) had valid accelerometer wear time (≥3 days, ≥ 10 h/day). Few children achieved 60 min total daily (15.0 %) or school-time (8.0 %) MVPA recommendations. For all time-of-day categories, girls achieved fewer MVPA minutes than boys (p < .0001), and overweight/obese participants achieved fewer MVPA minutes than normal/underweight participants (p = 0.05). Minutes of LPA declined by grade-level (p < .05) and were lower in girls than boys during school-time only (p < .05).ConclusionDisparities in MVPA by sex and weight status across school and out-of-school time highlight the need for programs with equitable reach.

【 授权许可】

CC BY   
© Hubbard et al. 2016