Evaluation and characterization of manual reaching in children with cerebral palsy: A systematic review.

Pessarelli and team read every paper they could find on how kids with cerebral palsy reach for toys. They only kept studies that used motion cameras or special sensors to track arm speed, path, and smoothness.

The review ended up with dozens of studies. Kids in the papers had different types and levels of CP. The team compared their reaching moves to typically developing peers.

Kids with CP take longer, jerkier, and less straight paths when they reach. The worse the motor level, the more the arm wiggles.

Task setup matters. Reaching while standing or using the weaker arm makes the movement even rougher.

Pavão et al. (2018) extends these findings. They show that bigger arm sway happens when kids use the non-dominant hand or have more severe CP. The 2015 review missed this postural piece.

de Campos et al. (2009) is a predecessor. That earlier review looked at babies, not school-age kids, and mixed CP with other risks. Visicato et al. (2015) zooms in on CP alone and adds stronger motion tools.

García-López et al. (2016) used the same 3-D cameras but with autistic preschoolers. Both groups show jerky reaches, proving the method spots fine motor problems across diagnoses.

If you write PT or OT goals, ask for kinematic reports. Numbers like path length and jerk give clear baselines that show small gains you might miss. When you set up tasks, keep the dominant arm free and seat the child first; smoother reaches make it easier to see true progress during ABA sessions.