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[How reliable are data from 3d-gait analysis].

B Westhoff·M A Hirsch·H Hefter·A Wild·R Krauspe
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Abstract

AIM: The aim of the present study was to collect preliminary data to determine the test-retest reliability in healthy subjects using 3-dimensional computerised gait analysis. METHOD: Ten healthy subjects (6 females, 4 males) were tested using a 3-dimensional computerized gait analysis system (VICON 512, Oxford Metrics). There were two trials within a 2-hour period in which kinetic, kinematic and time-distance data were collected. Markers were removed after the first trial and reapplied for the second trial and Pearson's correlation coefficients were calculated. RESULTS: The correlation coefficients were all positive and high for time-distance (r = 0.86-0.99), sagittal plane kinematics (r = 0.86-0.98) and power (r = 0.90-0.98) parameters, indicating excellent reliability of these measures. Correlation coefficients for frontal and transverse plane kinematics were lower (r = 0.59-0.89). The lowest correlation coefficient values were obtained for transverse plane measures at the hip joint indicating poor reliability of this measure in healthy subjects. CONCLUSION: The results suggest excellent test-retest reliability using 3-dimensional computerized gait analysis, especially in the sagittal plane. Therefore this method is a very valuable tool in the analysis as well as in the outcome evaluation of conservative and operative procedures in movement disorders

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AdultGaitHumansImage Interpretation, Computer-AssistedImaging, Three-DimensionalLower ExtremityMalePhotographyReproducibility of ResultsSensitivity and SpecificityVideo RecordingClinical TrialComparative StudyJournal ArticleValidation Study

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B Westhoff, M A Hirsch, H Hefter, A Wild, R Krauspe. 2004. [How reliable are data from 3d-gait analysis].. https://doi.org/10.1055/s-2004-813229

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