Trend change analysis in the assessment of body balance during posture adjustment in reaction to anterior-posterior ground perturbation

Piotr Wodarski, Marta Chmura, Michał Szlęzak, Grzegorz Bajor, Marek Gzik and Jacek Jurkojć

PLOS ONE, 2024, vol. 19, issue 4, 1-15

Abstract: Postural adjustments (PA) occur to counteract predictable perturbations and can be impaired as a result of musculoskeletal and neurological dysfunctions. The most common way to detect PA is through electromyography measurements or center of pressure (COP) position measurements, where analysis in time domain and frequency domain are the most common. Aim of the research was to determine whether a new method of analyzing stabilographic measurements—the COP trend change analysis (TCI) of temporary posture corrections- can expand understanding of changes in balance strategy connected with PA. The study group involved 38 individuals (27women, 11men) aged 23±2.6 years. Measurements were performed using a stabilographic platform placed on a perturbation platform. The tests involved three measurements with forward and backward momentary movements of the platform. Participants were tested in three conditions–knowing the nature, time and direction of perturbation (Tr3), knowing only the nature of perturbation (Tr2) and without any information about the perturbation (Tr1). Statistically significant differences were revealed in the last second of Tr3 for the mean velocity of COP (p

Date: 2024
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Persistent link: https://EconPapers.repec.org/RePEc:plo:pone00:0301227

DOI: 10.1371/journal.pone.0301227

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