Stiff landings are associated with increased acl injury risk in young female basketball and floorball players - Leppänen, M; Pasanen, K; Kujala, U M; Vasankari, T; Kannus, P; Äyrämö, S; Krosshaug, T; Bahr, R; Avela, J; Perttunen, J; Parkkari, J (Am J Sports Med, 2016)