Quantification of patellar tendon reflex using portable mechanomyography and electromyography devices

Abstract Deep tendon reflexes are one of the main components of the clinical nervous system examinations. These assessments are inexpensive and quick. However, evaluation can be subjective and qualitative. This study aimed to objectively evaluate hyperreflexia of the patellar tendon reflex using por...

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Autores principales:	Hironori Tsuji, Haruo Misawa, Tomoyuki Takigawa, Tomoko Tetsunaga, Kentaro Yamane, Yoshiaki Oda, Toshifumi Ozaki
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/b1c93937174d461591ac4c681fe1945b
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spelling	oai:doaj.org-article:b1c93937174d461591ac4c681fe1945b2021-12-02T10:48:03ZQuantification of patellar tendon reflex using portable mechanomyography and electromyography devices10.1038/s41598-021-81874-52045-2322https://doaj.org/article/b1c93937174d461591ac4c681fe1945b2021-01-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-81874-5https://doaj.org/toc/2045-2322Abstract Deep tendon reflexes are one of the main components of the clinical nervous system examinations. These assessments are inexpensive and quick. However, evaluation can be subjective and qualitative. This study aimed to objectively evaluate hyperreflexia of the patellar tendon reflex using portable mechanomyography (MMG) and electromyography (EMG) devices. This study included 10 preoperative patients (20 legs) who had a pathology that could cause bilateral patellar tendon hyperreflexia and 12 healthy volunteers (24 legs) with no prior history of neurological disorders. We attached MMG/EMG sensors onto the quadriceps and tapped the patellar tendon with maximal and constant force. Our results showed a significantly high amplitude of the root mean square (RMS) and low frequency of the mean power frequency (MPF) in the rectus femoris, vastus medialis, and vastus lateralis muscles in both EMG and MMG with both maximal and constant force. Especially in the patients with cervical and thoracic myelopathy, the receiver operating characteristic (ROC) curve for diagnosing hyperreflexia of the patellar tendon showed a moderate to very high area under the curve for all EMG–RMS, EMG–MPF, MMG–RMS, and MMG–MPF values. The use of EMG and MMG for objectively quantifying the patellar tendon reflex is simple and desirable for future clinical applications and could help diagnose neurological disorders.Hironori TsujiHaruo MisawaTomoyuki TakigawaTomoko TetsunagaKentaro YamaneYoshiaki OdaToshifumi OzakiNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-15 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Hironori Tsuji Haruo Misawa Tomoyuki Takigawa Tomoko Tetsunaga Kentaro Yamane Yoshiaki Oda Toshifumi Ozaki Quantification of patellar tendon reflex using portable mechanomyography and electromyography devices
description	Abstract Deep tendon reflexes are one of the main components of the clinical nervous system examinations. These assessments are inexpensive and quick. However, evaluation can be subjective and qualitative. This study aimed to objectively evaluate hyperreflexia of the patellar tendon reflex using portable mechanomyography (MMG) and electromyography (EMG) devices. This study included 10 preoperative patients (20 legs) who had a pathology that could cause bilateral patellar tendon hyperreflexia and 12 healthy volunteers (24 legs) with no prior history of neurological disorders. We attached MMG/EMG sensors onto the quadriceps and tapped the patellar tendon with maximal and constant force. Our results showed a significantly high amplitude of the root mean square (RMS) and low frequency of the mean power frequency (MPF) in the rectus femoris, vastus medialis, and vastus lateralis muscles in both EMG and MMG with both maximal and constant force. Especially in the patients with cervical and thoracic myelopathy, the receiver operating characteristic (ROC) curve for diagnosing hyperreflexia of the patellar tendon showed a moderate to very high area under the curve for all EMG–RMS, EMG–MPF, MMG–RMS, and MMG–MPF values. The use of EMG and MMG for objectively quantifying the patellar tendon reflex is simple and desirable for future clinical applications and could help diagnose neurological disorders.
format	article
author	Hironori Tsuji Haruo Misawa Tomoyuki Takigawa Tomoko Tetsunaga Kentaro Yamane Yoshiaki Oda Toshifumi Ozaki
author_facet	Hironori Tsuji Haruo Misawa Tomoyuki Takigawa Tomoko Tetsunaga Kentaro Yamane Yoshiaki Oda Toshifumi Ozaki
author_sort	Hironori Tsuji
title	Quantification of patellar tendon reflex using portable mechanomyography and electromyography devices
title_short	Quantification of patellar tendon reflex using portable mechanomyography and electromyography devices
title_full	Quantification of patellar tendon reflex using portable mechanomyography and electromyography devices
title_fullStr	Quantification of patellar tendon reflex using portable mechanomyography and electromyography devices
title_full_unstemmed	Quantification of patellar tendon reflex using portable mechanomyography and electromyography devices
title_sort	quantification of patellar tendon reflex using portable mechanomyography and electromyography devices
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/b1c93937174d461591ac4c681fe1945b
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Quantification of patellar tendon reflex using portable mechanomyography and electromyography devices

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