The AAD Wheelchair was designed and Patented to create movement in the lower limbs for users with spinal cord injuries who have limited or no movement in the legs. The gearing system under the wheelchair allows the hand on one side of the body to extend the leg and foot on the other side of the body creating contralateral reciprocal movement and motion of the arms and legs through the midline of the body for wheelchair users with SCI. The height and width of the back of the wheelchair supports the natural alignment and curvature of the cervical, thoracic and lumbar spine and allows the head to stay upright, aligned and centered over the body during use. The unique Patented design allows the arms to swing forward and backward behind the body which allows the flexor and extensor muscles around the top of the spine and and under the shoulder blades to engage. The shape of the seat helps the knees and ankles stay aligned under the hips making it easier to get into and out of the wheelchair. Contact Customer Support at customerservice@alignedasdesigned.com or call 310-800-0110 For More Information.