5. Conclusion
Children with ID scored signiFicantly lower on all physical Fitness tests than typically developing children. These abilities were associated with decreased level of intellectual functioning, thus children with borderline ID scored better on balance and endurance than children with mild ID. It was found that improvement of physical Fitness was closely related to physical exercise. Results of this research indicated that carefully designed and targeted physical activity program could signiFicantly influence development of physical Fitness in children with ID. The research emphasizes the importance of carefully tailoring the exercise programs to the needs and abilities of each individual child with the aim of developing and improving his or her physical Fitness.