van der Leeuw G, Stam H, van Nieuwenhuyzen J. Correction for gravity in isokinetic dynamometry of knee extensors in below knee amputees. JRM [Internet]. 1989 Aug. 1 [cited 2026 May 19];21(3):141-5. Available from: https://medicaljournalssweden.se/jrm/article/view/41632