UNIGE document Scientific Article
previous document  unige:34504  next document
add to browser collection

Linking clinical measurements and kinematic gait patterns of toe-walking using fuzzy decision trees

Watelain, Eric
Roux, Emmanuel
Mercier, Moïse
Lepoutre, François-Xavier
Published in Gait & posture. 2007, vol. 25, no. 3, p. 475-84
Abstract Toe-walking is one of the most prevalent gait deviations and has been linked to many diseases. Three major ankle kinematic patterns have been identified in toe-walkers, but the relationships between the causes of toe-walking and these patterns remain unknown. This study aims to identify these relationships. Clearly, such knowledge would increase our understanding of this gait deviation, and could help clinicians plan treatment. The large quantity of data provided by gait analysis often makes interpretation a difficult task. Artificial intelligence techniques were used in this study to facilitate interpretation as well as to decrease subjective interpretation. Of the 716 limbs evaluated, 240 showed signs of toe-walking and met inclusion criteria. The ankle kinematic pattern of the evaluated limbs during gait was assigned to one of three toe-walking pattern groups to build the training data set. Toe-walker clinical measurements (range of movement, muscle spasticity and muscle strength) were coded in fuzzy modalities, and fuzzy decision trees were induced to create intelligible rules allowing toe-walkers to be assigned to one of the three groups. A stratified 10-fold cross validation situated the classification accuracy at 81%. Twelve rules depicting the causes of toe-walking were selected, discussed and characterized using kinematic, kinetic and EMG charts. This study proposes an original approach to linking the possible causes of toe-walking with gait patterns.
Keywords Biomechanical PhenomenaChildDecision TreesElectromyographyFuzzy LogicGait Disorders, Neurologic/classification/physiopathologyHumansJoints/physiopathologyMuscle Contraction/physiologyMuscle Spasticity/physiopathologyMuscle Strength/physiologyMusculoskeletal Diseases/physiopathologyRange of Motion, Articular/physiologyReproducibility of ResultsRetrospective StudiesSensitivity and SpecificityToesWalking/physiology
PMID: 16837198
Full text
Article (Published version) (1.5 MB) - document accessible for UNIGE members only Limited access to UNIGE
Research group Laboratoire de cinésiologie (943)
(ISO format)
ARMAND, Stéphane et al. Linking clinical measurements and kinematic gait patterns of toe-walking using fuzzy decision trees. In: Gait & posture, 2007, vol. 25, n° 3, p. 475-84. doi: 10.1016/j.gaitpost.2006.05.014 https://archive-ouverte.unige.ch/unige:34504

474 hits

1 download


Deposited on : 2014-02-27

Export document
Format :
Citation style :