The purpose of this study was to explore effective metrics for differentiating levels ofleg length discrepancy (LLD) using a wearable device. DESIGN: A wearable device for measuring ground reaction forces and kinetic features was developed in this study. PARTICIPANTS: Eight volunteers without previously diagnosed LLD walked along a 120.0 m walkway with a 2.5 cm and 3 cm foot spacer to simulate LLD. MAIN OUTCOME MEASURES: The p-values of thirteen kinetic and kinematic metrics between normal and LLD walking. RESULTS: Difference in stance time duration, difference in heel reposition time, and ratio difference of loading effect showed statistical difference between normal walking and simulated LLD walking. CONCLUSION: The metrics with statistical difference may serve as effective indicators oflow levels ofLLD and be implemented into a point-of-care system for gait analysis.
The purpose of this study was to explore effective metrics for differentiating levels ofleg length discrepancy (LLD) using a wearable device. DESIGN: A wearable device for measuring ground reaction forces and kinetic features was developed in this study. PARTICIPANTS: Eight volunteers without previously diagnosed LLD walked along a 120.0 m walkway with a 2.5 cm and 3 cm foot spacer to simulate LLD. MAIN OUTCOME MEASURES: The p-values of thirteen kinetic and kinematic metrics between normal and LLD walking. RESULTS: Difference in stance time duration, difference in heel reposition time, and ratio difference of loading effect showed statistical difference between normal walking and simulated LLD walking. CONCLUSION: The metrics with statistical difference may serve as effective indicators oflow levels ofLLD and be implemented into a point-of-care system for gait analysis.
Authors: S M Shafiul Hasan; Masudur R Siddiquee; Roozbeh Atri; Rodrigo Ramon; J Sebastian Marquez; Ou Bai Journal: J Neuroeng Rehabil Date: 2020-04-16 Impact factor: 4.262