Cross-talk correction method for knee kinematics in gait analysis using principal component analysis (PCA): a new proposal.

ABSTRACT:

Background

In 3D gait analysis, the knee joint is usually described by the Eulerian way. It consists in breaking down the motion between the articulating bones of the knee into three rotations around three axes: flexion/extension, abduction/adduction and internal/external rotation. However, the definition of these axes is prone to error, such as the "cross-talk" effect, due to difficult positioning of anatomical landmarks. This paper proposes a correction method, principal component analysis (PCA), based on an objective kinematic criterion for standardization, in order to improve knee joint kinematic analysis.

Methods

The method was applied to the 3D gait data of two different groups (twenty healthy subjects and four with knee osteoarthritis). Then, this method was evaluated

SUBMITTER: Baudet A 

PROVIDER: S-EPMC4086984 | biostudies-literature | 2014

REPOSITORIES: biostudies-literature