Step length and width variability while walking on a motion simulator mounted treadmill. Annu Int Conf IEEE Eng Med Biol Soc 2016 Aug;2016:4577-4580
Date
01/01/2016Pubmed ID
28325010DOI
10.1109/EMBC.2016.7591746Scopus ID
2-s2.0-85009080945 (requires institutional sign-in at Scopus site) 1 CitationAbstract
While devices which allow scientists to perturb normal walking are becoming increasingly common, postural adaptations to these perturbations have not been fully quantified. One way to quantify postural responses to perturbations are through the assessment of variability of step length and width. In the present study we determined variability of both step length and width while subjects walked under perturbations of varying amplitude in roll, pitch, yaw, anteroposterior, lateral, and combined roll, pitch, yaw directions. Step kinematics were quantified using motion analysis. The majority of changes in step length variability occurred in Pitch (p<;0.01), mediolateral (p<;0.05) and anteroposterior (p<;0.01) directions. Changes in step width variability were most apparent in combined Roll-Pitch-Yaw (p<;0.01) as well as Roll (p<;0.05), and Yaw (p<;0.05) directions. These data demonstrate that sinusoidal perturbations while walking on a treadmill are sufficient to disrupt normal postural control. These conditions therefore may be useful in constructing rehabilitation programs to improve dynamic balance.
Author List
Boerger T, Van Dehy J, Onushko T, Schmit B, Hyngstrom AAuthors
Timothy F. Boerger LAT Postdoctoral Researcher 3 in the Neurosurgery department at Medical College of WisconsinAllison Hyngstrom PhD Associate Professor in the Physical Therapy department at Marquette University
Brian Schmit PhD Professor in the Biomedical Engineering department at Marquette University
MESH terms used to index this publication - Major topics in bold
Exercise TestFemale
Humans
Male
Motion
Postural Balance
Walking
Young Adult