Fig. 1

KINARM exoskeleton and Object Hit task. a KINARM exoskeleton is shown with wheelchair base and arm troughs that support arms in horizontal plane. We used adaptations including booster seats and smaller arm troughs as needed to accommodate smaller children. b Depiction of the task workspace, with green virtual paddles displayed at the participant’s fingertips. Balls fell from the top of the screen from 10 different horizontal locations