This pilot study sought to determine if participation in an after school community-based exercise program would result in improved fitness, self-concept, and social skills in a heterogeneous sample of children and adolescents with disabilities. Eighteen participants with physical and/or cognitive disabilities were recruited for an 8-week exercise program. Pre/post testing measures included: a modified Presidential Fitness Test (PFT), Energy Expenditure Index (EEI), body mass index (BMI), and the Piers-Harris 2. Social interactions were recorded each week. The results of this pilot study indicated that children and adolescents with disabilities could improve in measures of fitness as a result of participation in a structured group exercise program. More importantly, study results underscore the need for further research to address the limitations and challenges inherent in providing and studying the effects of community-based programs in heterogeneous samples of children and adolescents with disabilities. (Contains 4 tables and 1 figure.)