The influence of functional shortening of hamstring muscles and rectus femoris muscle on proprioception of knee joint in patients after ACL rupture Journal title: Annales Academiae Medicae Silesiensis Authors: Michał Szlęzak, Wirginia Likus, Bartłomiej Matuszny, Maciej Krupa Krupa, Krzysztof Ficek Subject(s):