Discrepancy between the 3 dimensional joint angles and clinical, planar joint angles

Author

Chung, S.G. ; Lee, K.W.

Author_Institution

Coll. of Med., Seoul Nat. Univ., South Korea

Volume

1

fYear

1999

fDate

1999

Abstract

The 3-D angles calculated by nonorthogonal joint coordinate system (NJCS) corresponds well with clinical joint angle when a motion occurs mainly one plane as normal human gait. Because the NJCS does not consider the rotational status of distal segment to calculate the rotation angle around proximal body fixed axis, there may be a situation in which the 3-D angles from NJCS are not consistent with clinical meaning. As clinicians, we present a hip motion which is thought as adduction but the NJCS angles report as flexion

Keywords

gait analysis; patient rehabilitation; 3D joint angles; adduction; clinical planar joint angles; flexion; foot raising motion; hip motion; nonorthogonal joint coordinate system; normal human gait; proximal body fixed axis; rehabilitation; rotation angle; Coordinate measuring machines; Educational institutions; Foot; Hip; Humans; Joints; Knee; Motion analysis; Motion measurement; Rotation measurement;

fLanguage

English

Publisher

ieee

Conference_Titel

[Engineering in Medicine and Biology, 1999. 21st Annual Conference and the 1999 Annual Fall Meetring of the Biomedical Engineering Society] BMES/EMBS Conference, 1999. Proceedings of the First Joint

Conference_Location

Atlanta, GA

ISSN

1094-687X

Print_ISBN

0-7803-5674-8

Type

conf

DOI

10.1109/IEMBS.1999.802600

Filename

802600