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Can be positive Trendelenburg sign associated with ACL injury risk factors? Case study
Project IdSGS02/PdF/2020
Main solverMgr. Gabriela Beinhauerová
Period1/2020 - 12/2020
ProviderSpecifický VŠ výzkum
Statefinished
AnotationAnterior cruciate ligament (ACL) injury is one of the most common injuries in sport. Female adolescents who participate in jumping and pivoting sports suffer ACL injuries more than males (Hewett et al., 1999). ACL injury occurs during a non-contact situation involving cutting or landing (McDaniel et al.; 2010; Myklebus et al., 1997; Ford et al., 2003). ACL injury mechanism includes knee joint in the low knee flexion (0° - 30°) and knee valgus position (Beynnon et al., 1995; Ford et al., 2003; Hewet et al., 2005). Players can solve the same motor task (cutting maneuvers, landing) by different way in the risk interval shortly after initial contact (Zahradnik et al., 2016; Beinhauerová 2019). Currently, it is unknown, that risk factors are associated with hip weakness during Trendelenburg sign. During the Trendelenburg test participant performed standing on one leg for 30 seconds (Hardcastle & Nade, 1985). There are studies using a dynamometer for hip strength testing (Khayambashi et al., 2016; Lawrence III et al., 2008). Female with patellofemoral joint pain demonstrated weakness in hip abduction compared to female who is not symptomatic (Ireland et al., 2003). Female has a lower strength of abductors hip in compared to male (Jacobs et al., 2007). We are not aware of any study to evaluate the correlation between hip weakness in the frontal plane with kinematics parametres knee joint during cutting maneuver. There is an assumption that hip weakness can be associated with risk factors of ACL injury.