Effects of a Wheelchair-Mounted Rigid Pelvic Stabilizer on Caregiver Assistance for Children with Cerebral Palsy

A within-subjects repeated measures (A1, B, A2) design was used to study the impact of a rigid pelvic stabilizer (RPS) compared with a traditional lap belt on the caregiver assistance requirements of six children with cerebral palsy as they completed functional tasks from their wheelchair seating system. Study participants wore a lap belt during the 3-week baseline phases (A1 and A2). The RPS was used during the 5-week intervention phase (B). At baseline, each child and parent identified five bimanual or reaching tasks with which the child had difficulty. Using a six-point scale, each parent (caregiver) rated the degree of assistance the child required to do each task. Parents also maintained a log, recording how many times the child was repositioned daily. The RPS appeared to impact directly on reducing caregiver assistance for 30% of the tasks, as the need for assistance was less during phase B when the RPS was used and was greater during phases Al and A2 when the lap belt was worn. Five children required repositioning less often during phase B than during the A phases. The RPS reduced the child's need for caregiver assistance for some bimanual and reaching tasks as well as for repositioning.