Does Dosage Matter: Ride-on Cars to Enhance Social-mobility Function and Motivation in Toddlers With Motor Disabilities

The 2-hour training session is composed of two 30-minute driving sessions and two 25-minute natural play sessions, with a 10-minute break. Every week's treatment program will be before planned and adjusted by the therapist and the caregivers through discussion and clinical observation of participant's performance in the previous session. Training will concentrate on building the concept of casual-effect on the switch and car motion, goal-oriented driving in a hospital, and upper limb use in functional tasks with driving and hand use in functional tasks for exploration in natural play session.

The 1-hour training session is composed of a 30-to-35-minute car play and a 25-minute natural play. Every week's treatment program will be before planned and adjusted by the therapist and the caregivers through discussion and clinical observation of participant's performance in the previous session. Training will concentrate on building the concept of casual-effect on the switch and car motion, goal-oriented driving in a hospital, and upper limb use in functional tasks with driving and hand use in functional tasks for exploration in natural play session.

The regular therapy group will be an active control group without receiving any additional training. The training dosage will be their own therapy, including occupational, physical and speech therapy. They will continue their regular therapy, including physical, occupational and speech therapy. The general propose of the training is to improve the developmental scales, mobility, socialization and upper limb use in functional tasks.