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Footprint analysis of gait using a pressure sensor system
Ekaterina B Titianova1, Plamen S Mateev, Ina M Tarkka
1Specialized University Hospital of Neurology and Psychiatry 'St. Naum', Department of Neurology, Sofia, Bulgaria.
Summary
Detailed footprint pressure data provides valuable insights into normal gait, complementing standard spatio-temporal measurements. This analysis reveals gait symmetry and velocity performance through distinct pressure patterns.
Area of Science:
- Biomechanics
- Gait Analysis
- Human Locomotion
Background:
- Spatio-temporal variables are commonly used to analyze gait.
- The contribution of detailed foot pressure data to gait analysis is not fully understood.
Purpose of the Study:
- To determine if detailed footprint pressure data offers essential information beyond traditional spatio-temporal gait variables.
- To analyze pressure distribution patterns during normal walking.
Main Methods:
- Investigated the gait of 62 healthy adults using the GAITRite pressure sensor system.
- Divided each footprint into 12 trapezoids for hindfoot, midfoot, and forefoot analysis.
- Analyzed sensor activation patterns, active area, and peak pressure distribution.
Main Results:
- Identified a typical two-peak pressure pattern during normal walking, corresponding to heel strike and push-off.
- Observed symmetrical footprint patterns between right and left legs, mirroring spatio-temporal gait symmetry.
- Found increased variability in the lateral midfoot and specific forefoot/midfoot pressure relationships linked to velocity.
Conclusions:
- Detailed footprint pressure analysis provides significant complementary information to spatio-temporal gait variables.
- Footprint pressure patterns reveal gait symmetry and offer insights into velocity performance.
- The study highlights the utility of pressure mapping for a comprehensive understanding of normal gait.