Complexity of human walking: the attractor complexity index is sensitive to gait synchronization with visual and auditory cues

The dataset contains raw signals recorded by a treadmill equipped with an embedded force platform (C-mill, Motek). The signals are the trajectories of the centers of pressure of 36 individuals walking at preferred walking speed. Signals are sampled at a frequency of 100Hz. Each file contains two columns corresponding the anteroposterior and the mediolateral directions.

Coding for files is:

subj_XX_YY.csv

XX: Subject's ID

YY: Experimental condition:

NC: No cueing. Normal treadmill walking

AC: Auditory cueing. Treadmill walking in time with an isochronous metronome set to the preferred step frequency.

VC: Visual cueing. Treadmill walking while aligning footsteps with forms projected onto the treadmill belt ("stepping stones"). The distance between the forms corresponds to the preferred step length.

Please cite the following studies that provide further details

[1] P. Terrier, Fractal Fluctuations in Human Walking: Comparison Between Auditory and Visually Guided Stepping, Ann Biomed Eng. 44 (2016) 2785–2793. doi:10.1007/s10439-016-1573-y.

[2] P. Terrier, Complexity of human walking: the attractor complexity index is sensitive to gait synchronization with visual and auditory cues, PeerJ Inc., 2019. doi:10.7287/peerj.preprints.27711v1.