Title :
Determination of kinematically consistent joint centers from segment orientations
Author :
Schwartz, Michael
Author_Institution :
Dept. of Orthopaedic Surg. & Biomed. Eng., Minnesota Univ., Minneapolis, MN, USA
Abstract :
A method for locating the centers of articulating joints is developed. The method is based on kinematic constraints imposed by the rigid body model of the lower extremities. No static examination or knee alignment device is required and the derived joint centers are independent of marker placement. The results from five able-bodied subjects show joint centers comparable to those found using regression and knee alignment methods
Keywords :
gait analysis; kinematics; orthopaedics; physiological models; singular value decomposition; SVD; attitude matrices; centers of articulating joints; gait kinematics; kinematic constraints; kinematically consistent joint centers; lower extremities; marker placement flexibility; model accuracy; rigid body model; segment orientations; Biomedical engineering; Equations; Extremities; Hip; Kinematics; Knee; Medical services; Orthopedic surgery; Pediatrics; Shape measurement;
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
Print_ISBN :
0-7803-5674-8
DOI :
10.1109/IEMBS.1999.802602
