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Normative values for the foot posture index between right and left foot: a descriptive study
Torben Rokkedal-Lausch1, Majbritt Lykke, Martin Serup Hansen
1Section of Sport Science, Department of Public Health, Aarhus University, DK-8000 Aarhus, Denmark.
Gait & Posture
|May 14, 2013
Summary
This study establishes normative values for foot posture index (FPI) differences between feet in healthy adults. These findings help identify normal or asymmetrical foot posture variations.
Area of Science:
- Podiatry
- Biomechanical analysis
- Human locomotion studies
Background:
- The Foot Posture Index (FPI) is widely used to assess standing foot posture.
- Normative data for differences in FPI scores between the right and left foot are lacking.
- Understanding foot posture asymmetry is crucial for clinical assessment.
Purpose of the Study:
- To establish normative values for the difference between FPI scores of the two feet.
- To provide a benchmark for assessing foot posture symmetry in individuals.
- To aid in the clinical interpretation of FPI measurements.
Main Methods:
- Quantified FPI scores in both feet of 930 healthy adults.
- Calculated the difference between right and left foot FPI scores.
- Defined normal difference (±1 SD), asymmetry (±1-2 SD), and severe asymmetry (>±2 SD) based on mean differences.
Main Results:
- Established a reference range of -2 to +2 for normal FPI score difference between feet.
- Identified asymmetry scores between -2 to -4 and +2 to +4.
- Defined severe asymmetry as scores below -4 or above +4.
Conclusions:
- Presented normative values for FPI score differences in a large cohort of healthy adults.
- These values enable the identification of normal and asymmetrical foot posture differences.
- Provides a valuable tool for clinicians evaluating foot posture in individuals.
