Mechanomyogram measurement by lead zirconate titanate-based acoustic sensor

Mechanomyogram measurement by lead zirconate titanate-based acoustic sensor

In this research, we focused on the mechanomyogram (MMG) for evaluating muscle activity. MMG signals were measured using a lead zirconate titanate (PZT)-based acoustic sensor. In previous research on MMG measurement, low-frequency MMG signals ranging from 10 to 100 Hz were mainly measured. On the ot...

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Veröffentlicht in:Japanese Journal of Applied Physics 2018-11, Vol.57 (11S), p.11
Hauptverfasser: Takei, Yusuke, Aoki, Ryo, Kobayashi, Takeshi, Takahata, Tomoyuki, Shimoyama, Isao
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Acoustics
Lead zirconate titanates
Muscles
Sensors
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container_issue 11S
container_start_page 11
container_title Japanese Journal of Applied Physics
container_volume 57
creator Takei, Yusuke
Aoki, Ryo
Kobayashi, Takeshi
Takahata, Tomoyuki
Shimoyama, Isao
description In this research, we focused on the mechanomyogram (MMG) for evaluating muscle activity. MMG signals were measured using a lead zirconate titanate (PZT)-based acoustic sensor. In previous research on MMG measurement, low-frequency MMG signals ranging from 10 to 100 Hz were mainly measured. On the other hand, where, MMG signals higher than 100 Hz, which is considered to be related to the resonance of muscle fibers, were focused on. To measure high-frequency components of MMG signals, we used a PZT-based acoustic sensor and measured the MMG of the biceps brachii muscle of four subjects. As a result, it was confirmed that all the subjects showed frequency components of 10 Hz to 10 kHz in the MMG. In particular, we confirmed that as the force exerted by the muscles increases, MMG signals of 100 Hz to 10 kHz become larger.
doi_str_mv 10.7567/JJAP.57.11UD09
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subjects Acoustics
Lead zirconate titanates
Muscles
Sensors
title Mechanomyogram measurement by lead zirconate titanate-based acoustic sensor
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