TitleAnkle-dorsiflexion range of motion and landing biomechanics.
Publication TypeJournal Article
Year of Publication2011
AuthorsFong, C-M, J Blackburn, T, Norcross, MF, McGrath, M, Padua, DA
JournalJournal of athletic training
Date Published2011 Jan-Feb
KeywordsYoung Adult

A smaller amount of ankle-dorsiflexion displacement during landing is associated with less knee-flexion displacement and greater ground reaction forces, and greater ground reaction forces are associated with greater knee-valgus displacement. Additionally, restricted dorsiflexion range of motion (ROM) is associated with greater knee-valgus displacement during landing and squatting tasks. Because large ground reaction forces and valgus displacement and limited knee-flexion displacement during landing are anterior cruciate ligament (ACL) injury risk factors, dorsiflexion ROM restrictions may be associated with a greater risk of ACL injury. However, it is unclear whether clinical measures of dorsiflexion ROM are associated with landing biomechanics.