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Coordination in gait: Demonstration of a spectral approach

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posted on 2023-08-30, 15:10 authored by Genevieve K. R. Williams, Domenico Vicinanza
Many important notions in Life Sciences are linked with the idea of cycles, periodicity, fluctuations and transitions. The aim of this paper is to use spectral analysis in a unique way to study and quantify whole body coordination during gait. A participant walked at 3 km/h and ran at 15 km/h on a treadmill for 2 minutes. Position of the approximate center of rotation of the toe, ankle, knee, hip, shoulder, elbow and wrist, and heel, PSIS and head were collected at 100 Hz using CODAmotion analysis system. Fast Fourier Transform was performed on x-coordinate data of the 1) knee marker; 2) 4 markers attached to the free lower limb (toe, ankle, heel and knee); 3) left and right free lower limbs; 4) whole body (all markers). Gait is described by a largely harmonic and resonant oscillator that operates unilateral free limbs at the stride frequency, and axial regions at the step frequency. Running is described by a more harmonic and resonant oscillating structure than walking, with a 3 times higher Q factor and 47% lower Inharmonicity Index. This method is presented as a way to capture global dynamics of our complex multi-segment system, and presents a novel application of spectral analysis to study coordination in multiple oscillators.

History

Refereed

  • Yes

Volume

36

Issue number

15

Page range

1768-1775

Publication title

Journal of Sports Sciences

ISSN

1466-447X

Publisher

Taylor & Francis

File version

  • Accepted version

Language

  • eng

Legacy posted date

2018-03-07

Legacy creation date

2018-03-06

Legacy Faculty/School/Department

ARCHIVED Faculty of Science & Technology (until September 2018)

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