Anterior cruciate ligament (ACL) tear is a common injury among healthy young people. Landing with dynamic knee valgus (DKV) is one of the main causative factor that could lead to ACL rupture. During deceleration phase of landing the increased valgus deviation can diminish the shock absorption capacity …

A rupture of the anterior cruciate ligament (ACL) is one of the most common sports injuries worldwide, and also one of the most devastating injuries of the knee. An ACL injury happens mostly to young athletes (aged 14-40) who participate in landing, cutting and pivoting sports with fast decelerations, …

Purpose The aim of this study is to describe the effect of slower walking speed on the ankle kinematics of typically developing children. Method Three dimensional lower extremity joint kinematics were collected of 10 developing children (ages 6-9) walking at a comfortable walking speed (CWS) and slower …

Kinematical joint analysis during road cycling is a new trend. Reviewing the methods for 2D and 3D lower limb kinematical research, the sensor to segment alignment appeared to be the most challenging part due to unknown orientation with respect to the anatomical joints. A methodology that is suitable …

A method to study ligament-length patterns in situ with roentgenstereophotogrammetry, using strings of glued tantalum markers, was developed. The method was tested against a bone-to-bone marking method in five carpal ligaments in three specimens, whereby the hand was moved through dorsopalmar flexion …

Abstract—In many biomechanical motion studies, kinematic parameters are estimated from position measurements on a number of landmarks. In the present investigation, dummy motion experiments are performed in order to study the error dependence of kinematic parameters on geometric factors (number of markers, …

In biomechanical joint-motion analyses, the continuous motion to be studied is often approximated by a sequence of finite displacements, and the Finite Helical Axis(FHA) or "screw axis" for each displacement is estimated from position measurements on a number of anatomical or artificial landmarks. When …