The Piezo-resistive MC Sensor is a Fast and Accurate Sensor for the Measurement of Mechanical Muscle Activity

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...

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Main Authors: Andrej Meglič, Mojca Uršič, Aleš Škorjanc, Srđan Đorđević, Gregor Belušič
Format: Article
Language:English
Published: MDPI AG 2019-05-01
Series:Sensors
Subjects:
Online Access:https://www.mdpi.com/1424-8220/19/9/2108
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author Andrej Meglič
Mojca Uršič
Aleš Škorjanc
Srđan Đorđević
Gregor Belušič
author_facet Andrej Meglič
Mojca Uršič
Aleš Škorjanc
Srđan Đorđević
Gregor Belušič
author_sort Andrej Meglič
collection DOAJ
description 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.
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spelling doaj.art-ee39c1e2b3fe4e71bccad9dcd2780fc52022-12-22T04:24:40ZengMDPI AGSensors1424-82202019-05-01199210810.3390/s19092108s19092108The Piezo-resistive MC Sensor is a Fast and Accurate Sensor for the Measurement of Mechanical Muscle ActivityAndrej Meglič0Mojca Uršič1Aleš Škorjanc2Srđan Đorđević3Gregor Belušič4Department of Biology, Biotechnical Faculty, University of Ljubljana, 1000 Ljubljana, SloveniaDepartment of Biology, Biotechnical Faculty, University of Ljubljana, 1000 Ljubljana, SloveniaDepartment of Biology, Biotechnical Faculty, University of Ljubljana, 1000 Ljubljana, SloveniaTMG-BMC Ltd., Štihova ulica 24, 1000 Ljubljana, SloveniaDepartment of Biology, Biotechnical Faculty, University of Ljubljana, 1000 Ljubljana, SloveniaA 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.https://www.mdpi.com/1424-8220/19/9/2108muscle contraction sensortensiomyographyelectrically stimulated skeletal muscle contraction
spellingShingle Andrej Meglič
Mojca Uršič
Aleš Škorjanc
Srđan Đorđević
Gregor Belušič
The Piezo-resistive MC Sensor is a Fast and Accurate Sensor for the Measurement of Mechanical Muscle Activity
Sensors
muscle contraction sensor
tensiomyography
electrically stimulated skeletal muscle contraction
title The Piezo-resistive MC Sensor is a Fast and Accurate Sensor for the Measurement of Mechanical Muscle Activity
title_full The Piezo-resistive MC Sensor is a Fast and Accurate Sensor for the Measurement of Mechanical Muscle Activity
title_fullStr The Piezo-resistive MC Sensor is a Fast and Accurate Sensor for the Measurement of Mechanical Muscle Activity
title_full_unstemmed The Piezo-resistive MC Sensor is a Fast and Accurate Sensor for the Measurement of Mechanical Muscle Activity
title_short The Piezo-resistive MC Sensor is a Fast and Accurate Sensor for the Measurement of Mechanical Muscle Activity
title_sort piezo resistive mc sensor is a fast and accurate sensor for the measurement of mechanical muscle activity
topic muscle contraction sensor
tensiomyography
electrically stimulated skeletal muscle contraction
url https://www.mdpi.com/1424-8220/19/9/2108
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