Abstract
[Purpose] The purpose of this study was to clarify the relationship between fore- and hind-foot movement and knee valgus movement in the single-leg drop-landing. [Subjects] Thirteen healthy adult women participated in this study. [Methods] The subjects performed single-leg drop- landing from a 30-cm-high box. Motion analysis was used to obtain the knee valgus angle, forefoot pronation angle, hindfoot valgus angle, and arch height. Then, the correlations between knee valgus angle and each foot angle and arch height were examined. [Results] There was a poor correlation between forefoot pronation movement and knee valgus movement in single-leg drop-landing (r=−0.25). On the other hand, a significant positive correlation was observed for the hindfoot valgus angle and knee valgus movement (r=0.80). [Conclusion] The results of this study suggest that it is important to decrease the hindfoot valgus movement to prevent knee valgus movement in single-leg drop-landing.
