Simulation of normal and pathological gaits using a fusion knowledge strategy. 2013

Fabio Martínez, and Christian Cifuentes, and Eduardo Romero
CIM&Lab - School of Medicine, Universidad Nacional de Colombia, Bogotá DC, Colombia. edromero@unal.edu.co.

: Gait distortion is the first clinical manifestation of many pathological disorders. Traditionally, the gait laboratory has been the only available tool for supporting both diagnosis and prognosis, but under the limitation that any clinical interpretation depends completely on the physician expertise. This work presents a novel human gait model which fusions two important gait information sources: an estimated Center of Gravity (CoG) trajectory and learned heel paths, by that means allowing to reproduce kinematic normal and pathological patterns. The CoG trajectory is approximated with a physical compass pendulum representation that has been extended by introducing energy accumulator elements between the pendulum ends, thereby emulating the role of the leg joints and obtaining a complete global gait description. Likewise, learned heel paths captured from actual data are learned to improve the performance of the physical model, while the most relevant joint trajectories are estimated using a classical inverse kinematic rule. The model is compared with standard gait patterns, obtaining a correlation coefficient of 0.96. Additionally,themodel simulates neuromuscular diseases like Parkinson (phase 2, 3 and 4) and clinical signs like the Crouch gait, case in which the averaged correlation coefficient is 0.92.

UI MeSH Term Description Entries
D008954 Models, Biological Theoretical representations that simulate the behavior or activity of biological processes or diseases. For disease models in living animals, DISEASE MODELS, ANIMAL is available. Biological models include the use of mathematical equations, computers, and other electronic equipment. Biological Model,Biological Models,Model, Biological,Models, Biologic,Biologic Model,Biologic Models,Model, Biologic
D010300 Parkinson Disease A progressive, degenerative neurologic disease characterized by a TREMOR that is maximal at rest, retropulsion (i.e. a tendency to fall backwards), rigidity, stooped posture, slowness of voluntary movements, and a masklike facial expression. Pathologic features include loss of melanin containing neurons in the substantia nigra and other pigmented nuclei of the brainstem. LEWY BODIES are present in the substantia nigra and locus coeruleus but may also be found in a related condition (LEWY BODY DISEASE, DIFFUSE) characterized by dementia in combination with varying degrees of parkinsonism. (Adams et al., Principles of Neurology, 6th ed, p1059, pp1067-75) Idiopathic Parkinson Disease,Lewy Body Parkinson Disease,Paralysis Agitans,Primary Parkinsonism,Idiopathic Parkinson's Disease,Lewy Body Parkinson's Disease,Parkinson Disease, Idiopathic,Parkinson's Disease,Parkinson's Disease, Idiopathic,Parkinson's Disease, Lewy Body,Parkinsonism, Primary
D005684 Gait Manner or style of walking. Gaits
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D001696 Biomechanical Phenomena The properties, processes, and behavior of biological systems under the action of mechanical forces. Biomechanics,Kinematics,Biomechanic Phenomena,Mechanobiological Phenomena,Biomechanic,Biomechanic Phenomenas,Phenomena, Biomechanic,Phenomena, Biomechanical,Phenomena, Mechanobiological,Phenomenas, Biomechanic
D020233 Gait Disorders, Neurologic Gait abnormalities that are a manifestation of nervous system dysfunction. These conditions may be caused by a wide variety of disorders which affect motor control, sensory feedback, and muscle strength including: CENTRAL NERVOUS SYSTEM DISEASES; PERIPHERAL NERVOUS SYSTEM DISEASES; NEUROMUSCULAR DISEASES; or MUSCULAR DISEASES. Ambulation Disorders, Neurologic,Charcot Gait,Charcot's Gait,Duck Gait,Gait Disorder, Sensorimotor,Gait Dysfunction, Neurologic,Gait, Athetotic,Gait, Broadened,Gait, Drop Foot,Gait, Festinating,Gait, Frontal,Gait, Hemiplegic,Gait, Hysterical,Gait, Reeling,Gait, Rigid,Gait, Scissors,Gait, Shuffling,Gait, Spastic,Gait, Stumbling,Gait, Unsteady,Gait, Widebased,Locomotion Disorders, Neurologic,Marche a Petit Pas,Neurologic Ambulation Disorders,Neurologic Locomotion Disorders,Rapid Fatigue of Gait,Sensorimotor Gait Disorder,Ambulation Disorder, Neurologic,Athetotic Gait,Broadened Gait,Charcot Gaits,Charcots Gait,Drop Foot Gait,Festinating Gait,Foot Gait, Drop,Frontal Gait,Gait Disorder, Neurologic,Gait Disorders, Sensorimotor,Gait Dysfunctions, Neurologic,Gait, Charcot,Gait, Charcot's,Gait, Duck,Gaits, Charcot,Hemiplegic Gait,Hysterical Gait,Locomotion Disorder, Neurologic,Neurologic Ambulation Disorder,Neurologic Gait Disorder,Neurologic Gait Disorders,Neurologic Gait Dysfunction,Neurologic Gait Dysfunctions,Neurologic Locomotion Disorder,Reeling Gait,Rigid Gait,Scissors Gait,Sensorimotor Gait Disorders,Shuffling Gait,Shuffling Gaits,Spastic Gait,Stumbling Gait,Unsteady Gait,Widebased Gait

Related Publications

Fabio Martínez, and Christian Cifuentes, and Eduardo Romero
October 1964, Research quarterly,
Fabio Martínez, and Christian Cifuentes, and Eduardo Romero
February 1991, Clinical biomechanics (Bristol, Avon),
Fabio Martínez, and Christian Cifuentes, and Eduardo Romero
July 2013, Gait & posture,
Fabio Martínez, and Christian Cifuentes, and Eduardo Romero
March 2018, Royal Society open science,
Fabio Martínez, and Christian Cifuentes, and Eduardo Romero
August 2019, Journal of biomechanics,
Fabio Martínez, and Christian Cifuentes, and Eduardo Romero
January 1987, Journal of biomechanics,
Fabio Martínez, and Christian Cifuentes, and Eduardo Romero
June 1975, Comptes rendus hebdomadaires des seances de l'Academie des sciences. Serie D: Sciences naturelles,
Fabio Martínez, and Christian Cifuentes, and Eduardo Romero
June 2022, The Journal of physiology,
Fabio Martínez, and Christian Cifuentes, and Eduardo Romero
August 2001, American journal of physical anthropology,
Fabio Martínez, and Christian Cifuentes, and Eduardo Romero
September 2005, Nurse education in practice,
Copied contents to your clipboard!