Data analysis revealed significantly lower performance on initial fitness assessment in the groups of children with
intellectual disability (both E and K groups) when compared with the typically developing children. Consequently, children
with ID made the greatest number of attempts to keep balance, performed shortest length of the jump and demonstrated
poorest endurance capacity during workout while keeping the workout intensity unchanged. No statistically significant
difference was observed between initial and final assessments within groups; however, calculated adjusted mean value
representing longitudinal monitoring of the effect of experimental factor (Myp) indicated best improvement in children
from the experimental group (E) involved in the exercise and planned physical activity program (p 0.05). Descriptive
indicators suggested that best final fitness assessment scores were observed in children without disability; however, best
improvement of physical ability resulting from the experimental exercise program was accomplished in the experimental
group (E).