How active are American adolescents and have they become less active?
- 22 November 2010
- journal article
- Published by Wiley in Obesity Reviews
- Vol. 11 (12), 847-862
- https://doi.org/10.1111/j.1467-789x.2009.00685.x
Abstract
The aim of this study was to systematically examine patterns and time trends in US adolescents' physical activity (PA) and sedentary behaviours. We examined findings from the nationally representative Youth Risk Behavior Surveillance Surveys during 1991-2007, and fit regression models estimating average annual changes and tested time trends, and age, gender and ethnic differences. US adolescents had less PA but more sedentary behaviours than recommended, but showed no clear evidence of becoming less active. In 2007, 24.9% reported on average spending ≥3 h of screen time per day for non-school work; only 34.7% met the current PA recommendations, and it (25.6%) was even lower in girls. The prevalence of having sufficient vigorous PA changed little between 1993 and 2005 (from 65.8% to 64.1%). Encouraging changes regarding TV viewing time and physical education (PE) were detected. PE daily attendance rate and exercising >20 min during an average PE class increased significantly, while watching TV ≥3 h d⁻¹ decreased significantly in recent years. Considerable sex, age and ethnic differences existed in the patterns and trends. These national data show no clear evidence of declining PA among US adolescents in recent years. Reduced PA is not likely the major explanation of the recent increase in obesity among US adolescents.Keywords
This publication has 38 references indexed in Scilit:
- Will All Americans Become Overweight or Obese? Estimating the Progression and Cost of the US Obesity EpidemicObesity, 2008
- Physical Activity in the United States Measured by AccelerometerMedicine & Science in Sports & Exercise, 2008
- The Obesity Epidemic in the United States Gender, Age, Socioeconomic, Racial/Ethnic, and Geographic Characteristics: A Systematic Review and Meta-Regression AnalysisEpidemiologic Reviews, 2007
- Public Parks and Physical Activity Among Adolescent GirlsPublished by American Academy of Pediatrics (AAP) ,2006
- Availability of Physical Activity–Related Facilities and Neighborhood Demographic and Socioeconomic Characteristics: A National StudyAmerican Journal of Public Health, 2006
- Can School Income and Racial/Ethnic Composition Explain the Racial/Ethnic Disparity in Adolescent Physical Activity Participation?Published by American Academy of Pediatrics (AAP) ,2006
- RETRACTED: Obesity and physical activity: A reviewAmerican Heart Journal, 2006
- Relationships between media use, body fatness and physical activity in children and youth: a meta-analysisInternational Journal of Obesity, 2004
- Decline in Physical Activity in Black Girls and White Girls during AdolescenceNew England Journal of Medicine, 2002
- Children, Adolescents, and TelevisionPublished by American Academy of Pediatrics (AAP) ,2001