A Joint Coordinate System for the Clinical Description of Three-Dimensional Motions: Application to the Knee

The experimental study of joint kinematics in three dimensions requires the description and measurement of six motion components. An important aspect of any method of description is the ease with which it is communicated to those who use the data. This paper presents a joint coordinate system that p...

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Bibliographic Details
Published in:Journal of biomechanical engineering 1983-05, Vol.105 (2), p.136-144
Main Authors: Grood, E. S., Suntay, W. J.
Format: Article
Language:English
Subjects:
Biomechanical Phenomena
Humans
Knee Joint - physiology
Mathematics
Movement
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Summary:The experimental study of joint kinematics in three dimensions requires the description and measurement of six motion components. An important aspect of any method of description is the ease with which it is communicated to those who use the data. This paper presents a joint coordinate system that provides a simple geometric description of the three-dimensional rotational and translational motion between two rigid bodies. The coordinate system is applied to the knee and related to the commonly used clinical terms for knee joint motion. A convenient characteristic of the coordinate system shared by spatial linkages is that large joint displacements are independent of the order in which the component translations and rotations occur.
ISSN:0148-0731
1528-8951
DOI:10.1115/1.3138397