Compared to a walker, a gait trainer or supported stepping device offers more extensive support and is typically used by children who are not able to consistently bear full weight through the legs. These children are non-ambulatory, and therefore need additional support to stand and take steps independently. Relevant diagnoses may be cerebral palsy, Rett syndrome, traumatic brain injury, neuromuscular conditions.

Children who are expected to use a typical walker in the future may also require a gait trainer as a training device over a period of time to develop independent walking ability with minimal support. These children may have a functional level of CP GMFCS II and III or equivalent. 

For a child with a disability, taking their first steps with an assistive or supported stepping device is an important moment and milestone, for both the child and their parents.  Upright mobility allows the child to experience their environment from a whole new perspective and allows them to become more independent. It also enables more activity and participation with peers. 

Furthermore, upright mobility is also beneficial for general health and well-being. It has positive impact on joints, muscles, bones, respiration, bowl and bladder function as well as psychological and cognitive development.