1. Center for Sensory-Motor Interaction, Department of Health Science and Technology, Aalborg University (JH, TS, NJMR) and Department of Urology, Aalborg Hospital (MN), Aalborg, Spinal Cord Unit, Rheumatological Department, Viborg Hospital (SM), Viborg and Clinic for Spinal Cord Injuries, NeuroScience Centre, Rigshospitalet, Copenhagen University Hospital (FB-S), Copenhagen, Denmark