Age-related variation in mobility independence among wheelchair users with spinal cord injury: A cross-sectional study. Hinrichs T, Lay V, Arnet U, Eriks-Hoogland I, Koch HG, Rantanen T, Reinhardt JD, Brinkhof MW. Age-related variation in mobility independence among wheelchair users with spinal cord injury: A cross-sectional study. J Spinal Cord Med. 2015 Apr 1. Abstract Activity and participation, Assistive devices spinal cord injury, Community survey spinal cord injury, Functioning, Mobility