Quantitative Analysis of Human Movement Synergies: Constructive Pattern Analysis for Gait
- 1 June 1994
- journal article
- research article
- Published by Taylor & Francis Ltd in Journal of Motor Behavior
- Vol. 26 (2), 83-102
- https://doi.org/10.1080/00222895.1994.9941664
Abstract
To record three-dimensional coordinates of the joints from normal human subjects during locomotion, we used a digital motional analysis system (ELITE). Recordings were obtained under several different conditions, which included normal walking and stepping over obstacles. Principal component analysis was used to analyze coordinate data after conversion of the data to segmental angles. This technique gave a stable summary of the redundancy in gait kinematic data in the form of reduced variables (principal components). By modeling the shapes of the phase plots of reduced variables (distortion analysis) and using a limited number of model parameters, good resolution was obtained between subtly different conditions. Hence, it was possible to accurately resolve small distributed changes in gait patterns within subjects. These methods seem particularly suited to longitudinal studies in which relevant movement features are not known a priori. Assumptions and neurophysiological applications are discussed.Keywords
This publication has 21 references indexed in Scilit:
- Movement, posture and equilibrium: Interaction and coordinationProgress in Neurobiology, 1992
- Optimal coordination and control of posture and locomotionMathematical Biosciences, 1991
- The role of cutaneous afferents in the control of gamma‐motoneurones during locomotion in the decerebrate cat.The Journal of Physiology, 1991
- Chapter 32 The role of stretch and vestibulo-spinal reflexes in the generation of human equilibriating reactionsProgress in Brain Research, 1989
- Phase-Dependent Compensatory Responses to Perturbation Applied During Walking in HumansJournal of Motor Behavior, 1987
- Elite: A Digital Dedicated Hardware System for Movement Analysis Via Real-Time TV Signal ProcessingIEEE Transactions on Biomedical Engineering, 1985
- The organization of human postural movements: A formal basis and experimental synthesisBehavioral and Brain Sciences, 1985
- Adaptation of human movement to altered environmentsTrends in Neurosciences, 1982
- DIFFERENT TYPES OF DISTURBED MOTOR CONTROL IN GAIT OF HEMIPARETIC PATIENTSBrain, 1979
- Elementary Probability Theory with Stochastic ProcessesPublished by Springer Science and Business Media LLC ,1979