A gait retraining system using augmented-reality to modify footprint parameters: Effects on lower-limb sagittal-plane kinematics.

Détails

ID Serval
serval:BIB_8ECEEEC23490
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Titre
A gait retraining system using augmented-reality to modify footprint parameters: Effects on lower-limb sagittal-plane kinematics.
Périodique
Journal of biomechanics
Auteur(s)
Bennour S., Ulrich B., Legrand T., Jolles B.M., Favre J.
ISSN
1873-2380 (Electronic)
ISSN-L
0021-9290
Statut éditorial
Publié
Date de publication
03/01/2018
Peer-reviewed
Oui
Volume
66
Pages
26-35
Langue
anglais
Notes
Publication types: Clinical Trial ; Journal Article ; Research Support, Non-U.S. Gov't
Publication Status: ppublish
Résumé
Improving lower-limb flexion/extension angles during walking is important for the treatment of numerous pathologies. Currently, these gait retraining procedures are mostly qualitative, often based on visual assessment and oral instructions. This study aimed to propose an alternative method combining motion capture and display of target footprints on the floor. The second objectives were to determine the error in footprint modifications and the effects of footprint modifications on lower-limb flexion/extension angles. An augmented-reality system made of an optoelectronic motion capture device and video projectors displaying target footprints on the floor was designed. 10 young healthy subjects performed a series of 27 trials, consisting of increased and decreased amplitudes in stride length, step width and foot progression angle. 11 standard features were used to describe and compare lower-limb flexion/extension angles among footprint modifications. Subjects became accustomed to walk on target footprints in less than 10 min, with mean (± SD) precision of 0.020 ± 0.002 m in stride length, 0.022 ± 0.006 m in step width, and 2.7 ± 0.6° in progression angle. Modifying stride length had significant effects on 3/3 hip, 2/4 knee and 4/4 ankle features. Similarly, step width and progression angle modifications affected 2/3 and 1/3 hip, 2/4 and 1/4 knee as well as 3/4 and 2/4 ankle features, respectively. In conclusion, this study introduced an augmented-reality method allowing healthy subjects to modify their footprint parameters rapidly and precisely. Walking with modified footprints changed lower-limb sagittal-plane kinematics. Further research is needed to design rehabilitation protocols for specific pathologies.
Mots-clé
Adult, Ankle, Ankle Joint, Biomechanical Phenomena, Female, Foot, Gait, Healthy Volunteers, Humans, Knee, Knee Joint, Lower Extremity, Male, Physical Therapy Modalities, Walking, Young Adult, Foot progression angle, Rehabilitation, Step width, Stride length, Video projection
Pubmed
Web of science
Création de la notice
16/11/2017 20:26
Dernière modification de la notice
20/08/2019 14:52
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