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Journal Articles Applied Mechanics Year : 2022

Measuring Foot Progression Angle during Walking Using Force-Plate Data

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Abstract

Foot progression angle (FPA) is a gait-related clinical measurement commonly used for assessing the rotational profile of the lower extremity. This study examined the accuracy of two methods based on force-plate data for estimating FPA during walking by comparing them with a reference method using a motion capture system. Ten healthy adults performed a series of overground walking trials at three different speeds: slow, preferred and fast. FPA was estimated from two methods using data on center of pressure-one method previously reported in the literature, and a novel method proposed here. The FPA estimated by each of these two force-plate methods were compared with the reference FPA determined from kinematic data. Results showed that the novel force-plate method was more accurate and precise when measuring the FPA in the three speed conditions than the force-plate method previously reported in the literature. The mean absolute error obtained with this novel method was 3.3 ± 2.1 at slow speed, 2.0 ± 1.2 at preferred speed and 2.0 ± 1.2 at fast speed, with no significant effect of gait speed (p > 0.05). These findings suggest that the novel force-plate method proposed here is valid for determining FPA during walking at various speeds. In the absence of kinematic data, this method constitutes an attractive alternative for measuring FPA.
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hal-03894009 , version 1 (12-12-2022)

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Attribution - CC BY 4.0

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Teddy Caderby, Jérémie Begue, Georges Dalleau, Nicolas Peyrot. Measuring Foot Progression Angle during Walking Using Force-Plate Data. Applied Mechanics, 2022, 3, pp.174 - 181. ⟨10.3390/applmech3010013⟩. ⟨hal-03894009⟩
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