Robot Asissted Training on Neurodevelopmental Alterations

The aim of this randomized crossover clinical trial is to determine the effect of robot assisted gait training combined with physiotherapy on body composition and functional variables in a pediatric population with neurodevelopmental disorders.The main questions to answer are: * Does this treatment improve body composition parameters? * Does the treatment help maintaining functionality and without causing discomfort or pain? Participants will perform 2 weekly physiotherapy sessions for 8 weeks, then there will be 4 weeks of washout, afer which each patient will cross over to the other group for 8 more weeks.