Until recently, movement analysis of children with motor disabilities has mainly relied on in-lab measurements using optoelectronic systems. The development of new tools is mainly inspired from mainstream devices, such as video cameras associated with artificial intelligence or inertial sensors. These tools have extended the assessment of movement in these children beyond traditional movement analysis laboratories, to take an interest in their movements in everyday life. Through the complementarity of these measurements (and associated tools), which the use of is becoming mainstream, a more exhaustive understanding of children's motor disorders and their impacts will allow clinicians to optimize their therapeutic management.