||7R01CA081495-04 Interpret this number
||University Of California San Diego
||Pace+-Counseling Adolescents for Exercise and Nutrition
Description (adapted from the investigator's abstract): Improved physical
activity (PA) and nutrition behaviors in adolescents show great promise to
reduce risk of cancers and other disease. Fewer than 20 percent of adolescents
meet recommendations for fat or fruits and vegetable consumption, and only 50
percent of adolescent girls and 67 percent of boys meet recommendations for
vigorous PA. In this project we will evaluate an integrated clinical and
home-based intervention to improve PA and nutrition behaviors in adolescents.
PACE+ has 3 integrated components: a computer assessment and action planner;
provider counseling and 12 months of extended phone & mail contact. Pilot study
results (n=117) demonstrate that PACE+ shows substantial promise in maintaining
healthy and/or improving poor nutrition & PA behaviors. We will recruit 768
male and female adolescents age 11 through 15 seen in 6 healthcare settings.
Subjects will be randomly assigned within practices to 2 successive one-year
"doses" of PACE+ or a comparison condition involving counseling for sun
protection behaviors. PACE+ assesses 4 behaviors: 1) dietary fat, 2) fruits &
vegetable consumption, 3) moderate PA, and 4) vigorous PA. PACE+ also assesses
stage of change and psychosocial mediators of behavior change. PACE+ guides the
adolescent to select 1 nutrition and 1 PA target behavior for which they
develop action plans to discuss during the provider encounter. The provider
endorses or modifies the action plan and encourages participation in the
extended phone and mail intervention. Phone counseling, mailed and print
materials guide the adolescent to use cognitive & behavioral skills to make
changes in target nutrition and PA behaviors. At 6 months (midway through the
extended component of PACE+) participants are reassessed and receive
stage-appropriate intervention on the remaining 2 diet & PA behaviors. The sun
comparison condition has theory-based computer, provider, phone & mail
components controlling for attention and other non-specific intervention
effects. Primary behavioral outcomes, secondary outcomes, and selected
mediators and process variables will be measured prior to the first office
visit and at 6, 12, and 24 months. Primary outcomes will be measured using the
7-day physical activity recall and the 3-day food records of fruits, vegetables
and fat intake at 12 months. Secondary outcomes include adiposity, fitness,
BMI, psychosocial mediators of change, body image, and other measures. This
study will be the first to evaluate a combined physical activity and nutrition
intervention for youth that revolves around the primary health care setting.
The PACE+ intervention is particularly innovative in that 3
components--computer, provider counseling, and an extended home-based
intervention--are unified through a common theoretical framework.
Exercise aids, neighborhood safety, and physical activity in adolescents and parents.
Kerr J, Norman GJ, Sallis JF, Patrick K
Med Sci Sports Exerc, 2008 Jul;40(7), p. 1244-8.
Validating stage of change measures for physical activity and dietary behaviors for overweight women.
Robinson AH, Norman GJ, Sallis JF, Calfas KJ, Rock CL, Patrick K
Int J Obes (Lond), 2008 Jul;32(7), p. 1137-44.
2008 May 20.
Comparability and reliability of paper- and computer-based measures of psychosocial constructs for adolescent physical activity and sedentary behaviors.
Norman GJ, Sallis JF, Gaskins R
Res Q Exerc Sport, 2005 Sep;76(3), p. 315-23.
Comparability and reliability of paper- and computer-based measures of psychosocial constructs for adolescent fruit and vegetable and dietary fat intake.
Hagler AS, Norman GJ, Radick LR, Calfas KJ, Sallis JF
J Am Diet Assoc, 2005 Nov;105(11), p. 1758-64.
Psychosocial and environmental correlates of adolescent sedentary behaviors.
Norman GJ, Schmid BA, Sallis JF, Calfas KJ, Patrick K
Pediatrics, 2005 Oct;116(4), p. 908-16.
Diet, physical activity, and sedentary behaviors as risk factors for overweight in adolescence.
Patrick K, Norman GJ, Calfas KJ, Sallis JF, Zabinski MF, Rupp J, Cella J
Arch Pediatr Adolesc Med, 2004 Apr;158(4), p. 385-90.