1. Test-retest reliability of 3D kinematic gait variables in hip osteoarthritis patients
- Author
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Davy Laroche, A. Duval, Jean-Francis Maillefert, Paul Ornetti, Claire Morisset, J.-N. Beis, Philippe d'Athis, Laboratoire d'anthropologie et de sociologie. UHB (LAS), MEN : EA2241-Université de Rennes 2 (UR2), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES), Cognition, Action, et Plasticité Sensorimotrice [Dijon - U1093] (CAPS), Université de Bourgogne (UB)-Institut National de la Santé et de la Recherche Médicale (INSERM), Laboratoire d'anthropologie et de sociologie. UHB ( LAS ), MEN : EA2241-Université de Rennes 2 ( UR2 ), Université de Rennes ( UNIV-RENNES ) -Université de Rennes ( UNIV-RENNES ), Cognition, Action, et Plasticité Sensorimotrice [Dijon - U1093] ( CAPS ), and Université de Bourgogne ( UB ) -Institut National de la Santé et de la Recherche Médicale ( INSERM )
- Subjects
Male ,Kinematics ,Knee Joint ,MOTOR PATTERNS ,Osteoarthritis, Hip ,0302 clinical medicine ,Gait (human) ,HUMAN LOCOMOTION ,Orthopedics and Sports Medicine ,Gait ,Reliability (statistics) ,Mathematics ,Orthodontics ,JOINT ,Repeatability ,Middle Aged ,Reliability ,Biomechanical Phenomena ,medicine.anatomical_structure ,Goniometer ,[ SCCO.NEUR ] Cognitive science/Neuroscience ,Female ,Hip Joint ,WALKING ,medicine.medical_specialty ,Biomedical Engineering ,KNEE OSTEOARTHRITIS ,Validity ,03 medical and health sciences ,Imaging, Three-Dimensional ,Rheumatology ,Osteoarthritis ,medicine ,Humans ,ARTHROPLASTY ,MOTION ANALYSIS SYSTEM ,Pelvis ,Aged ,Hip ,[SCCO.NEUR]Cognitive science/Neuroscience ,OUTCOME MEASURE ,Reproducibility of Results ,RHEUMATOID-ARTHRITIS PATIENTS ,030229 sport sciences ,Trunk ,3D gait analysis ,Kinetics ,Gait analysis ,Physical therapy ,INTRA-RATER ,030217 neurology & neurosurgery ,Ankle Joint - Abstract
Import JabRef | WosArea Orthopedics; Rheumatology; International audience; Objectives: (1) to investigate the test-retest reliability of 3D gait analysis (3DGA) in hip Osteoarthritis (OA) patients; (2) to find the minimum number of gait trials needed to overcome intrinsic variability; (3) to check the accuracy of angles measured by the 3D system. Design: 23 Patients suffering from hip OA with no other major disease were recruited. We evaluated the reliability of spatio-temporal variables and body angles (lower-limb joints, trunk and pelvis angles) during two sessions of 3DGA using intra-class correlation coefficients (ICC). The minimum number of trials needed to overcome intrinsic variability was evaluated using an exponential fit model and the Bland and Altman coefficient of repeatability (CoR). The accuracy of measurement was evaluated using a manual goniometer and the recording of 18 different angles. Results: Spatio-temporal variables and most of the kinematic joint and trunk angles calculated demonstrated good to excellent reliability (ICC from 0.77 to 0.97). This was not the case for pelvic angles. The fitting model combined with the CoR showed that 5-10 trials are sufficient to obtain good reliability [ICC sup 0.7; CoR inf 2 standard deviation (SD)] for most of the spatio-temporal variables. All body angles showed good reliability (ICC sup 0.7) and low CoR (inf 2 SD) after five trials except for the pelvic angles. The reliability of marker positioning was found to be good (ICC sup 0.7) to excellent (ICC sup 0.9). Differences between angles measured using 3DGA and angles measured with a manual goniometer were found to be less than one percent. Conclusion: The present study shows that most of variables obtained using 3DGA in hip OA patients are reliable. Moreover, for most variables, 5-10 trials are needed to obtain good reliability and to overcome intrinsic variability, rather than 30 or more, thus improving the feasibility of measurement. (C) 2010 Osteoarthritis Research Society International. Published by Elsevier Ltd. All rights reserved.
- Published
- 2011