Couch potatoes or french fries: are sedentary behaviors associated with body mass index, physical activity, and dietary behaviors among adolescents? Journal of the American Dietetic Association. [J Am Diet Assoc] Journal article | | Title | Couch potatoes or french fries: are sedentary behaviors associated with body mass index, physical activity, and dietary behaviors among adolescents? | | Author(s) | Utter J, Neumark-Sztainer D, Jeffery R, Story M | | Institution | Division of Epidemiology, School of Public Health, University of Minnesota, Minneapolis, MN 55454, USA. | | Source | J Am Diet Assoc 2003 Oct; 103(10):1298-305. | | MeSH | Adolescent
Adolescent Behavior
Adolescent Nutrition
Body Mass Index
Energy Intake
Exercise
Female
Food Habits
Health Behavior
Humans
Leisure Activities
Linear Models
Male
Nutrition Surveys
Research Support, U.S. Gov't, Non-P.H.S.
Research Support, U.S. Gov't, P.H.S.
Sex Factors
| | Abstract | OBJECTIVE: To describe the demographic characteristics of adolescent boys and girls who engage in three sedentary behaviors (television/video use, computer use, and reading/homework), and to explore how each sedentary activity is associated with body mass index (BMI), dietary behaviors, and leisure time physical activity.
DESIGN: This study draws on data collected from Project EAT (Eating Among Teens), a school-based survey examining personal, behavioral, and socioenvironmental factors that are associated with nutritional intake among adolescents.
SUBJECTS: The study sample consists of 4746 middle and high school students from 31 public schools in a metropolitan area of the upper Midwest. All students were invited to participate. The overall response rate for Project EAT was 81.5%. Data collection was completed during the 1998-1999 school year. STATISTICAL
ANALYSIS: Multivariate linear regression was used for examining associations between independent and dependent variables, controlling for age, race/ethnicity, and socioeconomic status. All differences were considered statistically significant at P<.05.
RESULTS: Among boys, television/video use and time spent reading/doing homework were positively associated with BMI (P<.05), whereas for girls television/video and computer use were positively associated with BMI (P<.05). High television/video use among boys and girls was associated with more unhealthful dietary behaviors (eg, increased consumption of soft drinks, fried foods, and snacks) (P<.05). In contrast, time spent reading/doing homework was associated with more healthful dietary behaviors (eg, increased consumption of fruits and vegetables) (P<.05). Leisure time physical activity was not associated with television/video use among boys or girls, but was positively associated with computer use and time spent reading/doing homework (P<.05). Applications/Conclusions Messages and advice aimed at reducing time spent in sedentary activities should be targeted at television/video use instead of time spent reading, doing homework, or using a computer. Nutrition education should incorporate messages about the influence of the media and advertising on dietary behaviors. | | Language | eng | | Pub Type(s) | Journal Article
| | PubMed ID | 14520247 |
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