Developing and exploring a methodology for multi-modal indoor and outdoor gait assessment

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Gait assessment is emerging as a prominent way to understand impaired mobility and underlying neurological deficits. Various technologies have been used to assess gait inside and outside of laboratory settings, but wearables are the preferred option due to their cost-effective and practical use in both. There are robust conceptual gait models developed to ease the interpretation of gait parameters during indoor and outdoor environments. However, these models examine uni-modal gait characteristics (e.g., spatio-temporal parameters) only. Previous studies reported that understanding the underlying reason for impaired gait requires multi-modal gait assessment. Therefore, this study aims to develop a multi-modal approach using a synchronized inertial and electromyography (EMG) signals. Firstly, initial contact (IC), final contact (FC) moments and corresponding time stamps were identified from inertial data, producing temporal outcomes e.g., step time. Secondly, IC/FC time stamps were used to segment EMG data and define onset and offset times of muscle activities within the gait cycle and its subphases. For investigation purposes, we observed notable differences in temporal characteristics as well as muscle onset/offset timings and amplitudes between indoor and outdoor walking of three stroke survivors. Our preliminary analysis suggests a multi-modal approach may be important to augment and improve current inertial conceptual gait models by providing additional quantitative EMG data
Original languageEnglish
Title of host publication2021 43rd Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC)
Place of PublicationPiscataway, US
PublisherIEEE
Pages6759-6762
Number of pages4
ISBN (Electronic)9781728111797, 9781728111780
ISBN (Print)9781728111803
DOIs
Publication statusPublished - 1 Nov 2021
Event43rd Annual International Conference of the IEEE-EMBS, Engineering in Medicine and Biology Society -
Duration: 30 Oct 20215 Nov 2021
https://embc.embs.org/2021/

Publication series

NameAnnual International Conference of the IEEE Engineering in Medicine & Biology Society (EMBC)
PublisherIEEE
ISSN (Print)2375-7477
ISSN (Electronic)2694-0604

Conference

Conference43rd Annual International Conference of the IEEE-EMBS, Engineering in Medicine and Biology Society
Period30/10/215/11/21
Internet address

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