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Recording context matters: Differences in gait parameters collected by the OneStep smartphone application
Gabriela Rozanski1, David Putrino1
1Abilities Research Center, Icahn School of Medicine at Mount Sinai, New York, NY, United States of America.
Clinical Biomechanics (Bristol, Avon)
|September 4, 2022
Summary
Gait parameters from the OneStep app differ based on recording context. Passively recorded walks showed less favorable biomechanical patterns, impacting remote gait analysis interpretation in rehabilitation.
Area of Science:
- Biomedical Engineering
- Rehabilitation Science
- Digital Health
Background:
- Objective gait analysis is crucial for understanding walking dysfunction.
- Remote monitoring technologies offer advancements but context influence is understudied.
- The OneStep smartphone application is a tool for gait parameter collection.
Purpose of the Study:
- To investigate if gait parameters from the OneStep app vary with recording conditions.
- To assess the impact of spontaneous versus in-app initiated walks on collected data.
Main Methods:
- Retrospective analysis of 7227 walking bouts from 25 physical therapy patients.
- Comparison of gait parameters between spontaneous (background) and consciously initiated (in-app) walks.
- Univariate analysis to identify significant differences in spatiotemporal variables.
Main Results:
- Significant differences were found in velocity, double support time, stride length, and affected step length.
- Passively recorded (spontaneous) walks exhibited less clinically favorable spatiotemporal patterns.
- Effect sizes (g) ranged from 0.32 to 0.48 for the observed differences.
Conclusions:
- The recording context significantly influences biomechanical data from the OneStep application.
- Clinicians should consider this context-dependency when interpreting remotely acquired gait data.
- Further research is needed to understand the clinical impact on functional recovery and explore contributing factors.
