1The Center for Locomotion Studies, Penn State University, University Park, PA 16802, U.S.A.
Tài liệu tham khảo
Chao, 1986, Biomechanics of human gait
Grood, 1983, A joint coordinate system for the clinical description of three-dimensional motions: application to the knee, J. Biomechanical Engng., 105, 136, 10.1115/1.3138397
Sommer, 1991