The improvement seen in the study group may be due to stepping practice via AGT training which strengthens and stabilizes the neural network involved in producing this pattern and improves the specific postural control mechanism needed to maintain the balance during the weight shift from one leg to the other, so, treadmill as an example of stepping practice, facilitates and strengthens the neural connections that arise from the coupling of multimodal sensory input generated by the child through improving attention and awareness of the body position image in relation to his or her environment. This comes in agreement with El-Meniawy 2012 who attributed the improvement of balance in children with Down’s syndrome to the practice of stepping via treadmill training.