Longitudinal and Secular Trends in Physical Activity and Sedentary Behavior During Adolescence

OBJECTIVE There is little epidemiologic research on longitudinal and secular trends in weight-related health behaviors throughout the stages of adolescence. In particular, few data are available to assess secular trends in various sedentary behaviors. The objective of this research was to investigate longitudinal and secular trends in physical activity and sedentary behavior in a large, diverse cohort of adolescents. METHODS Project EAT-II is a 5-year longitudinal study (N = 2516) that includes 2 cohorts that allow for the observation of longitudinal changes from early to midadolescence (junior high to high school; n = 806; mean baseline age: 12.8 +/- 0.8 years) and mid- to late adolescence (high school to post-high school; n = 1710; mean baseline age: 15.8 +/- 0.8 years). EAT-II also examined secular trends in health behavior from 1999 to 2004 in midadolescence. The main outcome measures of the mixed-model regression analyses used in this research were self-reported weekly hours of moderate to vigorous physical activity, television/video viewing, and leisure-time computer use. RESULTS Our findings indicate substantial longitudinal changes in moderate to vigorous physical activity, particularly among girls (decreasing 5.9-4.9 hours/week from early to midadolescence and 5.1-3.5 hours/week from mid- to late adolescence), and leisure-time computer use, particularly among boys (increasing 11.4-15.2 hours/week from early to midadolescence and 10.4-14.2 hours/week from mid- to late adolescence). Secular trends further indicate dramatic increases in midadolescent computer use from 1999 to 2004; girls increased from 8.8 to 11.1 hours/week, and boys increased from 10.4 to 15.2 hours/week. CONCLUSIONS These adolescents experienced unfavorable shifts in activity patterns, such as longitudinal decreases in moderate to vigorous physical activity, coupled with longitudinal and secular increases in leisure-time computer use. Developing effective health promotion strategies that address a wide array of changing behavioral patterns will be important in promoting long-term health and active lifestyles among adolescents and young adults.

[1]  Ian Shrier,et al.  Is physical activity differentially associated with different types of sedentary pursuits? , 2003, Archives of pediatrics & adolescent medicine.

[2]  S. Gortmaker,et al.  Reducing obesity via a school-based interdisciplinary intervention among youth: Planet Health. , 1999, Archives of pediatrics & adolescent medicine.

[3]  B. Popkin,et al.  Determinants of adolescent physical activity and inactivity patterns. , 2000, Pediatrics.

[4]  Penny Gordon-Larsen,et al.  Longitudinal physical activity and sedentary behavior trends: adolescence to adulthood. , 2004, American journal of preventive medicine.

[5]  R. Little.  Survey Nonresponse Adjustments for Estimates of Means , 1986 .

[6]  G. Colditz,et al.  One-year changes in activity and in inactivity among 10- to 15-year-old boys and girls: relationship to change in body mass index. , 2003, Pediatrics.

[7]  Darrell M. Wilson,et al.  Does television viewing increase obesity and reduce physical activity? Cross-sectional and longitudinal analyses among adolescent girls. , 1993, Pediatrics.

[8]  G. Berenson,et al.  Physical and sedentary activity in school children grades 5-8: the Bogalusa Heart Study. , 1996, Medicine and science in sports and exercise.

[9]  J. Després,et al.  American College of Sports Medicine Position Stand. The recommended quantity and quality of exercise for developing and maintaining cardiorespiratory and muscular fitness, and flexibility in healthy adults. , 1998, Medicine and science in sports and exercise.

[10]  A. Kriska,et al.  Longitudinal study of the number and choice of leisure time physical activities from mid to late adolescence: implications for school curricula and community recreation programs. , 2002, Archives of pediatrics & adolescent medicine.

[11]  S. Marshall,et al.  Relationships between media use, body fatness and physical activity in children and youth: a meta-analysis , 2004, International Journal of Obesity.

[12]  T. Baranowski,et al.  The relationship among television watching, physical activity, and body composition of young children. , 1994, Pediatrics.

[13]  J. Sallis,et al.  Seven-day recall and other physical activity self-reports in children and adolescents. , 1993, Medicine and science in sports and exercise.

[14]  A. Kriska,et al.  Decline in physical activity in black girls and white girls during adolescence. , 2002, The New England journal of medicine.

[15]  T N Robinson,et al.  Reducing children's television viewing to prevent obesity: a randomized controlled trial. , 1999, JAMA.

[16]  Jennifer Utter,et al.  Couch potatoes or french fries: are sedentary behaviors associated with body mass index, physical activity, and dietary behaviors among adolescents? , 2003, Journal of the American Dietetic Association.

[17]  R S Paffenbarger,et al.  Physical fitness and all-cause mortality. A prospective study of healthy men and women. , 1989, JAMA.

[18]  W. Kraus,et al.  Effects of the amount and intensity of exercise on plasma lipoproteins. , 2002, The New England journal of medicine.

[19]  Damon Brown.  Playing to win: video games and the fight against obesity. , 2006, Journal of the American Dietetic Association.

[20]  T. Robinson,et al.  Ethnic and Gender Differences in the Relationships between Television Viewing and Obesity, Physical Activity, and Dietary Fat Intake , 1995 .

[21]  Ross C Brownson,et al.  Declining rates of physical activity in the United States: what are the contributors? , 2005, Annual review of public health.

[22]  P. Diggle.  Analysis of Longitudinal Data , 1995 .

[23]  D. Neumark-Sztainer,et al.  Overweight status and weight control behaviors in adolescents: longitudinal and secular trends from 1999 to 2004. , 2006, Preventive medicine.

[24]  R. Shephard,et al.  A simple method to assess exercise behavior in the community. , 1969, Canadian journal of applied sport sciences. Journal canadien des sciences appliquees au sport.

[25]  B. Popkin.  The nutrition transition: an overview of world patterns of change. , 2004, Nutrition reviews.

[26]  J. Sallis.  Age-related decline in physical activity: a synthesis of human and animal studies. , 2000, Medicine and science in sports and exercise.

[27]  Trish Gorely,et al.  Physical activity and sedentary behaviours in youth: issues and controversies , 2004, The journal of the Royal Society for the Promotion of Health.

[28]  Leslie A Lytle,et al.  Reliability and validity of a brief questionnaire to assess television viewing and computer use by middle school children. , 2004, The Journal of school health.

[29]  D. Gentile,et al.  Well-Child Visits in the Video Age: Pediatricians and the American Academy of Pediatrics’ Guidelines for Children's Media Use , 2004, Pediatrics.

[30]  Michael D. Jensen,et al.  Dose-response issues concerning physical activity and health: an evidence-based symposium. , 2001, Medicine and science in sports and exercise.

[31]  K. Patrick,et al.  Diet, physical activity, and sedentary behaviors as risk factors for overweight in adolescence. , 2004, Archives of pediatrics & adolescent medicine.

[32]  D. Neumark-Sztainer,et al.  Overweight status and eating patterns among adolescents: where do youths stand in comparison with the healthy people 2010 objectives? , 2002, American journal of public health.

[33]  Michael Pratt,et al.  Levels of physical activity and inactivity in children and adults in the United States: current evidence and research issues. , 1999, Medicine and science in sports and exercise.