G-14 Free Communication/Poster - Children and Adolescents 2: MAY 31, 2008 7:30 AM - 11:00 AM ROOM: Hall B
PURPOSE: The purpose of this study is to determine whether there is a relationship between changes in aerobic fitness (VO2max), BMI, and/or body composition and attendance in an after-school, structured, group exercise program in overweight youth while participating in a clinical, behaviorally-based, weight management program.
METHODS: Data from 205 subjects were used in these analyses; Prior to and following participation in the first phase (approximately 20-24 weeks) of the clinical weight management program, a maximal, graded, treadmill exercise test was performed to determine maximal oxygen uptake (VO2max). Height and weight were measured to calculate BMI and body composition (% fat) was measured by DEXA. During Phase I of the clinical weight management program participants and families attended 6 nutrition education and goal setting sessions and attended an after-school, structured exercise program at least once per week or as many as 5 (1 hour) sessions per week.
RESULTS: Univariate correlation analyses indicated a significant relationship between number of sessions attended and BMI change (r=−0.28; p< 0.05) for the AA group of males and females. In addition, AA females exhibited a significant correlation between sessions attended and aerobic fitness increase (r= 0.33; p<0.05). The C and AA girls demonstrated significant correlations between % sessions attended and weight change (r=−.23; p<0.03) and BMI change (r=−.21; p<0.04). CONCLUSONS: These data suggest children and adolescents involved in the program improved aerobic fitness and body composition. In summary, physical activity outside of a structured exercise program is important for aerobic fitness improvements and diet behaviors and other non-structured physical activities are important for body weight and BMI changes in overweight boys and girls.