Abstract
The purpose of the study was to investigate the reliability, agreement and variability of high intensity cycling exercise in a group of boys with intellectual disability (ID) and also to compare the Wingate Anaerobic Test (WAnT) performances of boys with and without intellectual disability. Sixteen boys with ID and 18 boys without ID with appropriate consent participated in the study. All participants in the study performed a WAnT on two separate test occasions. The results indicate that boys with ID have comparable levels of reliability and agreement in the WAnT as boys without ID but their performances are significantly more variable. The boys with ID were markedly less powerful and had lower post-exercise blood lactate than boys without ID.