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Increased Knee Valgus Alignment and Moment During Single-leg Landing After Overhead Stroke as a Potential Risk Factor of Anterior Cruciate Ligament Injury in Badminton by Yuka Kimura; Yasuyuki Ishibashi; Eiichi Tsuda; Yuji Yamamoto; Yoshimitsu Hayashi; Shuichi Sato is a Medicine article available to read on EtoBox.

What is Increased Knee Valgus Alignment and Moment During Single-leg Landing After Overhead Stroke as a Potential Risk Factor of Anterior Cruciate Ligament Injury in Badminton about?

## Background: In badminton, knees opposite to the racket-hand side received anterior cruciate ligament (acl) injuries during single-leg landing after overhead stroke. most of them occurred in the backhand-side of the rear court. comparing lower limb biomechanics during single-leg landing after overhead stroke between the forehand-side and backhand-side court may help explain the different injury rates depending on court position. ## Hypothesis: The knee kinematics and kinetics during single-leg landing after overhead stroke following back-stepping were different between the forehand-side and backhand-side court. ## Study design: Controlled laboratory study. ## Methods: Hip, knee and ankle joint kinematic and knee kinetic data were collected for 17 right-handed female college badminton players using a 3-dimensional motion analysis system. subjects performed single-left-legged landing after an overhead stroke following left and right back-stepping. the kinematic and kinetic data of the left lower extremities during landing were measured and compared between left and right back-steps. ## Results: Hip flexion and abduction and knee valgus at the initial contact, hip and knee flexion a

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Author

Yuka Kimura; Yasuyuki Ishibashi; Eiichi Tsuda; Yuji Yamamoto; Yoshimitsu Hayashi; Shuichi Sato

Publisher

BMJ

Published

2011

Language

EN

Field

Medicine (Health Sciences)