The first aim of the present work was to examine the effects of a physical activity sports program, specifically Kin-Ball, within a group of individuals with intellectual disabilities, on decreasing sedentary behavior and improving basic physical skills. The second aim was to evaluate social validity and acceptability of the intervention. In this pre-experimental study, 47 individuals participated (46.8% male and 53.2% female) with an average age of 29.85 (SD = 10.41). All participants were administered an intervention program based on the alternative sport of Kin-Ball. BMI was calculated for body composition and age-related Z-scores were interpreted with the tables provided by the WHO. Endurance was measured through a modified six-minute test, speed was analyzed using a 50 m test, and strength was estimated according to a hand-grip dynamometer. Likewise, balance and coordination were examined in line with adaptations proposed by the scientific literature. Results indicated that all cases experienced statistically significant differences following the intervention program (p = 0.000). Improvement effects were detected in all post-intervention tests (endurance, strength, speed, balance, and coordination). As a main conclusion, it is indicated that an alternative sports-based program improves physical ability and motor skills in individuals with intellectual disabilities.
Keywords: Kin-Ball; intellectual disability; intervention program; motor skills; physical activity.