Year 2021 / Volume 32 / Number 1

Original Papers

Descriptive analysis of 3D foot motion using inertial sensors: comparison between lower extremities

Rev. Esp. Pod. 2021; 32(1): 13-17 / DOI: 10.20986/revesppod.2021.1594/2020

Juan Luis Florenciano Restoy, Jordi Solé-Casals, Xantal Borràs Boix


ABSTRACT

Objectives: The objective of this study is twofold, on the one hand, it is to make a kinematic description of the movement of the foot in the three planes of the space and, on the other hand, to determine if there are differences between the lower extremities.
Patients and methods: The study is a descriptive, observational and cross-sectional one, with a sample consisting of 40 healthy adults who are also regular runners. The assessment protocol consisted of running on a treadmill at a speed of 9 km/h. Data collection was carried out during the first 20 seconds, after which the speed of the treadmill was stabilized.
Results: In the dorsi-plantar movement, no significant differences between feet were found (p<0.37), whereas in the pronation-supination movement and the abduction-adduction movement significant differences were found, especially in the right foot (p < 0.002 and p < 0.02 respectively). The size of the effect in the movement in the sagittal plane was found to be very small, while in the frontal and transverse planes it increased to a medium effect.
Conclusion: During running, the foot follows a logical sequence of movements. While no significant differences exist in the dorsi-plantar movements, in the pronation-supination and abduction-adduction movements the right foot was found to have a bigger range of movement than the left foot.



RESUMEN

Objetivos: El objetivo del presente estudio es doble: por un lado, realizar una descripción cinemática del movimiento del pie en los tres planos del espacio y, por otro, determinar si existen diferencias entre ambas extremidades.
Pacientes y métodos: Se trata de un estudio descriptivo, observacional y transversal, con una muestra de 40 corredores habituales, adultos sanos. El protocolo de valoración consistió en carrera sobre cinta rodante a una velocidad de 9 km/h. La recogida de datos se realizó durante 20 segundos, después de estabilizada la velocidad de la cinta.
Resultados: En el movimiento de flexión dorsal-flexión plantar no se observan diferencias significativas entre pies (p < 0.37). En el movimiento de pronación-supinación y en el de adducción-abducción sí existen diferencias significativas, siendo mayor en el pie derecho (p < 0.002 y p < 0.02 respectivamente). El tamaño del efecto es muy pequeño en el movimiento en el plano sagital, mientras que en los planos frontal y transverso es un efecto mediano.
Conclusión: Durante la carrera el pie mantiene una secuencia lógica de movimiento. Mientras no existen diferencias significativas en los movimientos de flexión dorsal-flexión plantar, en los movimientos de pronación-supinación y adducción-abducción el pie derecho tiene mayor rango de movimiento que el pie izquierdo.


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Florenciano Restoy J, Solé-Casals J, Borràs Boix X. Descriptive analysis of 3D foot motion using inertial sensors: comparison between lower extremities. Rev Esp Pod 2021; 32(1): 13-17 / DOI: 1020986/revesppod20211594/2020


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Publication history

Received: 09/11/2020

Accepted: 22/12/2020

Online First: 18/05/2021

Published: 18/06/2021

Article revision time: 41 days

Article Online First time: 190 days

Article editing time: 221 days


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2025 Revista Española de Podología
ISSN: 0210-1238   e-ISSN: 2695-463X

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