Effects of school-based cardiovascular-fitness training in children with mental retardation.

The aim of this study was to investigate the effects of a school-based cardiovascular-fitness-training program in children with mental retardation (MR). Thirty boys (8-15 years old) with mild to moderate mental retardation were randomly divided into 2 groups--experimental (EX) and control (CN). The EX group underwent 10 weeks of training 3 times/week for a duration of 1 hr/session at 60-80% peak heart rate.