Background: The frequency and intensity of physical activity are directly related to health in the general population. However, to our knowledge, no study has looked at that relationship in people with intellectual disability. Method: The aim of this study was to determine whether there were differences in the health of 407 people with intellectual disability according to the frequency and intensity of physical activity. The method involved cross-sectional study of secondary data. Findings: Results showed that the ability to express pain, number of orthopaedic and physiotherapy consultations, body mass index and percentage of psychosis/schizophrenia diagnoses differed with the frequency and intensity of physical activity. Conclusion: Other studies are needed to learn more about physical activity factors that could improve the health of people with intellectual disability.