Inconsistencies exist regarding the relation between physical activity (PA) and internalizing symptomology in early adolescence, and there is need for investigation of potential moderators that may account for these discrepancies. The current study utilized a Self-Determination Theory Framework to investigate the main effects of five key…

Studies involving physical exercise and individuals with autism spectrum disorders (ASD) were reviewed. Systematic search procedures identified 18 studies meeting predetermined inclusion criteria. These studies were evaluated in terms of: (a) participant characteristics, (b) type of exercise, (c) procedures used to increase exercise, (d) outcomes,…

A study found the stereotypic behaviors of four children with developmental disabilities reduced by 51.6 percent in a single frequency treatment consisting of one daily ten minute walk/jog session, however, the behaviors reduced 58.9 percent following a multiple frequency conditions that involved three ten minute walk/jog session per day.…

In two experiments with profoundly retarded institutionalized individuals, 10 severely aggressive, hyperactive young adults were exposed to two daily periods of jogging and strenuous physical activities. Results indicated systematic reductions in problem behavior for eight of the 10 to levels considered "not a problem" or only "an occasional…