Rantanen T, Era P, Heikkinen E. Maximal isometric knee extension strength and stair-mounting ability in 75- and 80-year-old men and women. JRM [Internet]. 1996 Jun. 1 [cited 2024 Nov. 28];28(2):89-93. Available from: https://medicaljournalssweden.se/jrm/article/view/41840