摘要:The study sought to analyse the fluency of motor patterns that physical activity programs promote in elderly people. Nineteen physical activity sessions were studied using an ad hoc system (OSMOS_in context) of the Observational System of Motor Skills (OSMOS), an instrument that provides a clear analysis of how essential elements related to motor skills behaviours can be observed. A subsequent analysis based on the detection of T-patterns by means of Theme v.5 enabled us to obtain sequential analyses of the motor behaviours used in elderly physical activities in Catalonia (Spain).