caa a22 4500 605457522 CHVBK 20210128100223.0 cr unu---uuuuu 210128e20151201xx s 000 0 eng 10.1007/s00167-014-3222-z doi (NATIONALLICENCE)springer-10.1007/s00167-014-3222-z The association of dorsiflexion flexibility on knee kinematics and kinetics during a drop vertical jump in healthy female athletes [Elektronische Daten] [Philip Malloy, Alexander Morgan, Carolyn Meinerz, Christopher Geiser, Kristof Kipp] Purpose: While previous studies have examined the association between ankle dorsiflexion flexibility and deleterious landing postures, it is not currently known how landing kinetics are influenced by ankle dorsiflexion flexibility. The purpose of this study was to examine whether ankle dorsiflexion flexibility was associated with landing kinematics and kinetics that have been shown to increase the risk of anterior cruciate ligament (ACL) injury in female athletes. Methods: Twenty-three female collegiate soccer players participated in a preseason screening that included the assessment of ankle dorsiflexion flexibility and lower-body kinematics and kinetics during a drop vertical jump task. Results: The results demonstrated that females with less ankle dorsiflexion flexibility exhibited greater peak knee abduction moments (r=−.442), greater peak knee abduction angles (r=.355), and less peak knee flexion angles (r=.385) during landing. The range of dorsiflexion flexibility for the current study was between 9° and 23° (mean=15.0°; SD 3.9°). Conclusion: Dorsiflexion flexibility may serve as a useful clinical measure to predict poor landing postures and external forces that have been associated with increased knee injury risk. Rehabilitation specialists can provide interventions aimed at improving dorsiflexion flexibility in order to ameliorate the impact of this modifiable factor on deleterious landing kinematics and kinetics in female athletes. Level of evidence: II. Springer-Verlag Berlin Heidelberg, 2014 ACL injury nationallicence Ankle flexibility nationallicence Kinematics nationallicence Kinetics nationallicence Landing mechanics nationallicence Malloy Philip Department of Physical Therapy, Marquette University, Milwaukee, WI, USA aut Morgan Alexander Department of Physical Therapy, Marquette University, Milwaukee, WI, USA aut Meinerz Carolyn Department of Physical Therapy, Marquette University, Milwaukee, WI, USA aut Geiser Christopher Department of Physical Therapy, Marquette University, Milwaukee, WI, USA aut Kipp Kristof Department of Physical Therapy, Marquette University, Milwaukee, WI, USA aut Knee Surgery, Sports Traumatology, Arthroscopy Springer Berlin Heidelberg 23/12(2015-12-01), 3550-3555 0942-2056 23:12<3550 2015 23 167 https://doi.org/10.1007/s00167-014-3222-z text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s00167-014-3222-z text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Malloy Philip Department of Physical Therapy, Marquette University, Milwaukee, WI, USA aut NATIONALLICENCE 700 1- Morgan Alexander Department of Physical Therapy, Marquette University, Milwaukee, WI, USA aut NATIONALLICENCE 700 1- Meinerz Carolyn Department of Physical Therapy, Marquette University, Milwaukee, WI, USA aut NATIONALLICENCE 700 1- Geiser Christopher Department of Physical Therapy, Marquette University, Milwaukee, WI, USA aut NATIONALLICENCE 700 1- Kipp Kristof Department of Physical Therapy, Marquette University, Milwaukee, WI, USA aut NATIONALLICENCE 773 0- Knee Surgery, Sports Traumatology, Arthroscopy Springer Berlin Heidelberg 23/12(2015-12-01), 3550-3555 0942-2056 23:12<3550 2015 23 167