Comparison of three-dimensional body centre of mass trajectories during locomotion through zero- and one-dimensional statistics.

ABSTRACT: The trajectory of the body centre of mass (BCoM) during locomotion differs through speeds, gaits and pathological states; statistical methods are needed to compare it among different conditions. Here, ten participants walked on treadmill at 1.1 and 1.4 m/s; BCoM trajectories were obtained through stereophotogrammetry and expressed as Fourier series. Trajectories were compared among speeds using (i) zero-dimensional (0D) linear and circular tests for difference on amplitudes and phases of Fourier series harmonic, (ii) one-dimensional statistical parametric mapping (1D-SPM) t-tests on the anteroposterior, mediolateral and vertical axial components of the BCoM trajectory and (iii) 1D-SPM Hotelling's T² test on the three-dimensional BCoM trajectory. Increasing speed increased the am

SUBMITTER: Luciano F 

PROVIDER: S-EPMC9588033 | biostudies-literature | 2022 Oct

REPOSITORIES: biostudies-literature