“…There are many single-leg landing studies in the literature (
Self and Paine, 2001
;
Lephart et al, 2002
;
Fagenbaum and Darling, 2003
;
Hargrave et al, 2003
;
Ford et al, 2006
;
Russell et al, 2006
;
Nagano et al, 2007
;
Pappas et al, 2007
;
Schmitz et al, 2007
;
Lawrence III et al, 2008
;
Kiriyama et al, 2009
;
Shimokochi et al, 2009
;
Yeow et al, 2010
). These studies explicate factors implicated in contributing to the risk of non-contact ACL injuries, as well as, biomechanical gender differences that possibly explain the gender disparity in non-contact ACL injury rate (
Fagenbaum and Darling, 2003
;
Ford et al, 2006
;
Russell et al, 2006
;
Nagano et al, 2007
;
Pappas et al, 2007
;
Schmitz et al, 2007
;
Lawrence III et al, 2008
;
Kiriyama et al, 2009
;
Shimokochi et al, 2009
;
Yeow et al, 2010
). However, most of these studies investigated single-leg landings from only one vertical height (
Self and Paine, 2001
;
Lephart et al, 2002
;
Hargrave et al, 2003
;
Ford et al, 2006
;
Russell et al, 2006
;
Nagano et al, 2007
;
Pappas et al, 2007
;
Schmitz et al, 2007
;
Lawrence III et al, 2008
;
Kiriyama et al, 2009
;
Shimokochi et al, 2009
) and to the authors’ best knowledge, none of these studies investigated the effect of horizontal distance on single-leg landing biomechanics.…”