Lindberg, Thomas, Anton Arndt, Cecilia Norrbrink, Kerstin Wahman, and Anna Bjerkefors. 2012. “Effects of Seated Double-Poling Ergometer Training on Aerobic and Mechanical Power in Individuals With Spinal Cord Injury”. Journal of Rehabilitation Medicine 44 (10):893-98. https://doi.org/10.2340/16501977-1038.