Introduction: Understanding the special needs of persons with intellectual disabilities (ID) seems to be necessary to improve the performance of a variety of social roles, and the activities in the various forms of movement. Unsolved research problem remains whether people with ID are at all able to make efforts short of the maximum intensity The aim of the study was to evaluate the response of the people with intellectual disabilities in the shortterm efforts of the maximum intensityMaterial and methods: The participants of the study were 16 persons with intellectual disabilities - 10 men and 6 women The subjects were participants in occupational therapy workshops, not who practice the sport. All participants underwent Wingate test twice, at an interval of one week. Correlation was assessed at maximum power (PP), relative maximum power (rPP), average power (MP), the relative average power (rMP) and the fatigue index (FI) between the results of the tests. Additionally, compared to the results obtained in a group of men and women in the study 1 and 2, and also in relation to the size of the previously presented for the able-bodied reference. Results: There has been significant correlations for all investigated parameters in women as well as the results of MP and PP rMP in men. No significant differences between the results obtained in the first and second study, with the exception of the fatigue index in women’s group. Conclusions: Pilot studies indicate that the Wingate test is reliable in a group of untrained adult men and women with intellectual disabilities and can be used in this kind of disability.