Related Experiment Video
Updated: Jul 28, 2026
Clinical-oriented Three-dimensional Gait Analysis Method for Evaluating Gait Disorder
Published on: March 4, 2018
[How reliable are data from 3d-gait analysis]
B Westhoff1, M A Hirsch, H Hefter
1Orthopädische Klinik der Heinrich-Heine-Universität, Düsseldorf. westhoff@med.uni-duesseldorf.de
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
