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Towards Wearable Comprehensive Capture and Analysis of Skeletal Muscle Activity during Human Locomotion
Jönköping University, School of Health and Welfare, HHJ, Dep. of Rehabilitation. Department of Biomedical Engineering, The Hong Kong Polytechnic University, Hong Kong.ORCID iD: 0000-0001-6507-2329
Department of Biomedical Engineering, The Hong Kong Polytechnic University.
Department of Biomedical Engineering, The Hong Kong Polytechnic University.
Department of Biomedical Engineering, The Hong Kong Polytechnic University.
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2019 (English)In: Sensors, ISSN 1424-8220, E-ISSN 1424-8220, Vol. 19, no 1, article id 195Article in journal (Refereed) Published
Abstract [en]

Background: Motion capture and analyzing systems are essential for understanding locomotion. However, the existing devices are too cumbersome and can be used indoors only. A newly-developed wearable motion capture and measurement system with multiple sensors and ultrasound imaging was introduced in this study. Methods: In ten healthy participants, the changes in muscle area and activity of gastrocnemius, plantarflexion and dorsiflexion of right leg during walking were evaluated by the developed system and the Vicon system. The existence of significant changes in a gait cycle, comparison of the ankle kinetic data captured by the developed system and the Vicon system, and test-retest reliability (evaluated by the intraclass correlation coefficient, ICC) in each channel’s data captured by the developed system were examined. Results: Moderate to good test-retest reliability of various channels of the developed system (0.512 ≤ ICC ≤ 0.988, p < 0.05), significantly high correlation between the developed system and Vicon system in ankle joint angles (0.638R ≤ 0.707, p < 0.05), and significant changes in muscle activity of gastrocnemius during a gait cycle (p < 0.05) were found. Conclusion: A newly developed wearable motion capture and measurement system with ultrasound imaging that can accurately capture the motion of one leg was evaluated in this study, which paves the way towards real-time comprehensive evaluation of muscles and joint motions during different activities in both indoor and outdoor environments.

Place, publisher, year, edition, pages
Basel, Switzerland: MDPI, 2019. Vol. 19, no 1, article id 195
Keywords [en]
motion capture and analysis; wearable; ultrasound imaging; electromyography (EMG); sonomyograph (SMG); mechanomyography (MMG); plantar force; joint angle
National Category
Medical Engineering Other Medical Sciences not elsewhere specified
Identifiers
URN: urn:nbn:se:hj:diva-42860DOI: 10.3390/s19010195ISI: 000458574600195PubMedID: 30621103Scopus ID: 2-s2.0-85059796161Local ID: GOA HHJ 2019; HHJOrtopedteknikISOAI: oai:DiVA.org:hj-42860DiVA, id: diva2:1285739
Available from: 2019-02-05 Created: 2019-02-05 Last updated: 2019-03-04Bibliographically approved

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Publisher's full textPubMedScopushttps://www.mdpi.com/1424-8220/19/1/195/htm

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Ma, Christina Zong-Hao

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