Objective: The aim of this research was to examine the impact of exercise on improving the functionality of adults with autism spectrum disorders. Methods: The work with the respondents was done during the working hours of the examiner-physiotherapist at the Center for education Juraj Bonači in Split, at the Department for providing social service to people on the autism spectrum. The exercises were performed individually by 24 subject. Each subject participated in therapy at least once a week, lasting from 5 to 45 minutes. The physiotherapist assessed the posture, ability to perform movements and gait, and based on this assessment, planned the appropriate type of exercises for each subject. The impact of exercise on the subject functionally was monitore din the period from May 2018 to May 2023. due to the impossibility of understanding the requirements, it was not possible to evaluate the impact of exercise on the functionally of the subject through tests. During the mentioned period, the time of active participation of the subject in the therapy was monitored, which was measured twice a year, in May and October. Results: A significant increase in the time spent in exercise was observed among the subject during the observed period. In the group of man, there was a significant increase in the time spent in exercise, while in woman an increase in the time was observed, but it was not statistically significant. No significant difference was observed in the time spent in exercise with regard to age groups. Conclusion: The research showed a significant increase in time spent in exercise during a certain period. Monitoring the duration of exercise participation revealed positive changes in social interaction, expression of emotions, vocalization and socialization. Indirectly, it can be concluded that exercise has a positive effect on the mentioned aspects of autism and that improvements in these aspects additionally contribute to an increase in the time devoted to exercise over time.