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Updated: Jul 8, 2026
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Clinical-oriented Three-dimensional Gait Analysis Method for Evaluating Gait Disorder
Published on: March 4, 2018
Reliability of a method for analyzing three-dimensional knee kinematics during gait
David R Labbe1, Nicola Hagemeister, Mathieu Tremblay
1Laboratoire de recherche en imagerie et orthopédie, Centre de recherche, Centre hospitalier de l'Université de Montréal (CHUM), 1560 rue Sherbrooke est, Montréal, Quebec, Canada. david.labbe.1@ens.etsmtl.ca
Gait & Posture
|December 25, 2007
Summary
The exoskeleton attachment system demonstrates high reliability for accurately measuring 3D knee movement during gait, even after reinstallation. This ensures consistent and dependable knee kinematics data collection by different observers.
Area of Science:
- Biomechanics
- Knee Kinematics
- Gait Analysis
Background:
- Skin movement artifacts can affect knee bone movement recordings during gait.
- Exoskeleton attachment systems offer potential for accurate gait analysis.
- Reliability of exoskeleton systems for 3D knee kinematics needs further investigation.
Purpose of the Study:
- To assess the intra-observer reliability of the exoskeleton attachment system.
- To determine the inter-observer reliability of the exoskeleton attachment system.
- To evaluate the consistency of 3D knee kinematics recording during gait.
Main Methods:
- Two studies were conducted: intra-observer and inter-observer reliability.
- Intra-observer study: One observer reinstalled the exoskeleton on 15 subjects, recording gait kinematics four times per subject.
- Inter-observer study: Three observers reinstalled the exoskeleton on 15 subjects, recording gait kinetics three times each in a randomized order.
Main Results:
- High intra-observer reliability was found, with ICC values ranging from 0.88 to 0.94.
- High inter-observer reliability was also observed, with ICC values ranging from 0.89 to 0.94.
- ICC values were similar across both intra- and inter-observer settings for all measured knee rotations.
Conclusions:
- The exoskeleton attachment system exhibits very high reliability for recording 3D knee kinematics during gait, even with repeated installations.
- Reliability is independent of the observer, indicating consistent performance across different clinicians.
- The findings support the use of this exoskeleton system for dependable knee kinematics evaluation in clinical and research settings.
