Previously submitted to: JMIR Formative Research (no longer under consideration since Jun 04, 2024)
Date Submitted: Nov 13, 2023
Warning: This is an author submission that is not peer-reviewed or edited. Preprints - unless they show as "accepted" - should not be relied on to guide clinical practice or health-related behavior and should not be reported in news media as established information.
Comparison of FeetMe® Integrated-Sensor Insoles with an Optoelectronic Motion Capture System Coupled to Force Platforms for Assessing Gait Parameters in Healthy Adults
ABSTRACT
Background:
Traditional gait measurement systems are often limited by factors such as cost, complexity, prolonged setup times, and requirements for specialized training and expertise, making them challenging to use in clinical practice. Wearable pressure- and motion-sensing insoles have opened new possibilities for accessible gait analysis in real-life conditions.
Objective:
This study evaluated the equivalence of FeetMe® insole measurements of gait parameters in healthy adults to those of a high precision, laboratory gold standard, optoelectronic motion capture system coupled to force platforms (MoCap/FP).
Methods:
This prospective single-center study assessed gait parameters in 37 healthy volunteers (aged 18-80 years) who performed static stabilometry and walking tests recorded by FeetMe® insoles and the MoCap/FP system. Static, kinetic, and spatiotemporal parameters were measured simultaneously on each system. Means and variances were compared, and inter-device agreement was assessed for each parameter.
Results:
Between-device equivalence was demonstrated for all parameters assessed (two one-sided t tests: P<.001). For static parameters, six of 13 variables presented excellent interclass correlation coefficients (ICCs ≥0.90) and three had good ICCs (≥0.75 to <0.90). Moreover, 10 of 11 spatiotemporal parameters showed excellent accuracy (ICCs ≥0.90), and three of four kinetic parameters showed moderate-to-good accuracy (ICCs between 0.78 and 0.89).
Conclusions:
High levels of agreement were observed between the systems. FeetMe® can be considered as a valid gait measurement tool compared to the high precision MoCap/FP system. The FeetMe® insoles could be used in clinical practice to assess a wide range of key gait and posture parameters, overcoming some limitations of traditional systems. Clinical Trial: NCT06027762
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