Intervention included provision of power wheelchair and power mobility training program. Project staff will use structured power mobility training program to teach the children to use the power mobility devices. Project staff will schedule 1-hour sessions with each family 3 times per week for the first month of the project and will decrease in the following manner as the child becomes proficient and develops basic wheelchair maneuvering skills: two one-hour session per week for 4 weeks; one one-hour session per week for 4 weeks; two one-hour sessions per month for 4 weeks; one one-hour session per month for the remainder of the study.

Children in the control group will not receive any additional intervention, but will continue to receive the early intervention or other services they were receiving prior to enrollment in this study.

Project staff will use structured power mobility training program to teach the children to use the power mobility devices. Project staff will schedule 1-hour sessions with each family 3 times per week for the first month of the project and will decrease in the following manner as the child becomes proficient and develops basic wheelchair maneuvering skills: two one-hour session per week for 4 weeks; one one-hour session per week for 4 weeks; two one-hour sessions per month for 4 weeks; one one-hour session per month for the remainder of the study.