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http://hdl.handle.net/10397/94727
Title: | How paretic and non-paretic ankle muscles contract during walking in stroke survivors : new insight using novel wearable ultrasound imaging and sensing technology | Authors: | Lyu, PZ Zhu, RTL Ling, YT Wang, LK Zheng, YP Ma, CZH |
Issue Date: | May-2022 | Source: | Biosensors, May 2022, v. 12, no. 5, 349 | Abstract: | Abnormal muscle tone and muscle weakness are related to gait asymmetry in stroke survivors. However, the internal muscle morphological changes that occur during walking remain unclear. To address this issue, this study investigated the muscle activity of the tibialis anterior (TA) and medial gastrocnemius (MG) of both the paretic and non-paretic sides during walking in nine stroke survivors, by simultaneously capturing electromyography (EMG), mechanomyography (MMG), and ultrasound images, and using a validated novel wearable ultrasound imaging and sensing system. Statistical analysis was performed to examine the test–retest reliability of the collected data, and both the main and interaction effects of each “side” (paretic vs. non-paretic) and “gait” factors, in stroke survivors. This study observed significantly good test–retest reliability in the collected data (0.794 ≤ ICC ≤ 0.985), and significant differences existed in both the side and gait factors of the average TA muscle thickness from ultrasound images, and in the gait factors of TA and MG muscle’s MMG and EMG signals (p < 0.05). The muscle morphological characteristics also appeared to be different between the paretic and non-paretic sides on ultrasound images. This study uncovered significantly different internal muscle contraction patterns between paretic and non-paretic sides during walking for TA (7.2% ± 1.6%) and MG (5.3% ± 4.9%) muscles in stroke survivors. | Keywords: | Dynamic ultrasound image Electromyography (EMG) Gait Mechanomyography (MMG) Medial gastrocnemius (MG) Muscle activity Stroke Tibialis anterior (TA) |
Publisher: | MDPI AG | Journal: | Biosensors | EISSN: | 2079-6374 | DOI: | 10.3390/bios12050349 | Rights: | © 2022 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). The following publication Lyu, P. Z., Zhu, R. T. L., Ling, Y. T., Wang, L. K., Zheng, Y. P., & Ma, C. Z. H. (2022). How Paretic and Non-Paretic Ankle Muscles Contract during Walking in Stroke Survivors: New Insight Using Novel Wearable Ultrasound Imaging and Sensing Technology. Biosensors, 12(5), 349 is available at https://doi.org/10.3390/bios12050349 |
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biosensors-12-00349-v3.pdf | 1.77 MB | Adobe PDF | View/Open |
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