The piezo-resistive MC sensor is a fast and accurate sensor for the measurement of mechanical muscle activity

Meglič, Andrej (author), Uršič, Mojca (author), Škorjanc, Aleš (author), Đorđević, Srđan (author), Belušič, Gregor (author)

A piezo-resistive muscle contraction (MC) sensor was used to assess the contractile properties of seven human skeletal muscles (vastus medialis, rectus femoris, vastus lateralis, gastrocnemius medialis, biceps femoris, erector spinae) during electrically stimulated isometric contraction. The sensor was affixed to the skin directly above the muscle centre. The length of the adjustable sensor tip (3, 4.5 and 6 mm) determined the depth of the tip in the tissue and thus the initial pressure on the skin, fatty and muscle tissue. The depth of the tip increased the signal amplitude and slightly sped up the time course of the signal by shortening the delay time. The MC sensor readings were compared to tensiomyographic (TMG) measurements. The signals obtained by MC only partially matched the TMG measurements, largely due to the faster response time of the MC sensor.

• Language: English
• Keywords: muscle contraction sensor, tensiomyography, electrically stimulated skeletal muscle contraction
• Work type: Article
• Typology: 1.01 - Original Scientific Article
• Organization: BF - Biotechnical Faculty
• Publication status: Published
• Publication version: Version of Record
• Year: 2019
• Number of pages: 11 str.
• Numbering: Vol. 19, iss. 9, art. 2108
• PID: 20.500.12556/RUL-132326
• UDC: 611.73
• ISSN on article: 1424-8220
• DOI: 10.3390/s19092108
• COBISS.SI-ID: 5061455
• Publication date in RUL: 21.10.2021

Record is a part of a journal

• Title: Sensors
• Shortened title: Sensors
• Publisher: MDPI
• ISSN: 1424-8220
• COBISS.SI-ID: 10176278

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• License: CC BY 4.0, Creative Commons Attribution 4.0 International
• Link: http://creativecommons.org/licenses/by/4.0/
• Description: This is the standard Creative Commons license that gives others maximum freedom to do what they want with the work as long as they credit the author.
• Licensing start date: 07.05.2019