4.5 Article

A model of human postural control inspired by separated human sensory systems

期刊

BIOCYBERNETICS AND BIOMEDICAL ENGINEERING
卷 41, 期 1, 页码 255-264

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ELSEVIER
DOI: 10.1016/j.bbe.2020.12.0080208-5216/

关键词

Postural stability; Inverted pendulum; Vestibular system; Elderly balance system

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Postural balance refers to one's ability to maintain stability, relying on the integration of multisensory inputs including the vestibular system. Modeling the human postural control system with a focus on the vestibular system allows for mathematical understanding of differences in vestibular system between different age groups, and quantitative predictions of balance behavior based on changes in sensorimotor behavior of different body parts.
Postural balance, which has a big role in daily life, is generally known as one's strength to retain stability. Balance takes advantage of the integration of multisensory inputs that work together to stabilize one's standing. Understanding the duty of each body part in postural balance has led us into modeling the human postural control system paying attention to the vestibular system in addition to other body parts and senses. Via updating the model both for the young and old adults, it is possible to mathematically understand the differences between the vestibular system of the young healthy adults and of the healthy elderly. Also, using linear control modeling, we provide quantitative predictions of the balance behavior depending on changes in sensorimotor behavior of different parts of the body and sensorimotor system. The results of this study help to understand better why the elderly tend to feel dizzy more often and why they would use other strategies compared to the ankle strategy. (c) 2020 Nalecz Institute of Biocybernetics and Biomedical Engineering of the Polish Academy of Sciences. Published by Elsevier B.V. All rights reserved.

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