Using Electrical Muscle Stimulation to Enhance Electrophysiological Performance of Agonist–Antagonist Myoneural Interface

The agonist–antagonist myoneural interface (AMI), a surgical method to reinnervate physiologically-relevant proprioceptive feedback for control of limb prostheses, has demonstrated the ability to provide natural afferent sensations for limb amputees when actuating their prostheses. Following AMI sur...

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Main Authors: Jianping Huang, Ping Wang, Wei Wang, Jingjing Wei, Lin Yang, Zhiyuan Liu, Guanglin Li
Format: Article
Language:English
Published: MDPI AG 2024-09-01
Series:Bioengineering
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Online Access:https://www.mdpi.com/2306-5354/11/9/904
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author Jianping Huang
Ping Wang
Wei Wang
Jingjing Wei
Lin Yang
Zhiyuan Liu
Guanglin Li
author_facet Jianping Huang
Ping Wang
Wei Wang
Jingjing Wei
Lin Yang
Zhiyuan Liu
Guanglin Li
author_sort Jianping Huang
collection DOAJ
description The agonist–antagonist myoneural interface (AMI), a surgical method to reinnervate physiologically-relevant proprioceptive feedback for control of limb prostheses, has demonstrated the ability to provide natural afferent sensations for limb amputees when actuating their prostheses. Following AMI surgery, one potential challenge is atrophy of the disused muscles, which would weaken the reinnervation efficacy of AMI. It is well known that electrical muscle stimulus (EMS) can reduce muscle atrophy. In this study, we conducted an animal investigation to explore whether the EMS can significantly improve the electrophysiological performance of AMI. AMI surgery was performed in 14 rats, in which the distal tendons of bilateral solei donors were connected and positioned on the surface of the left biceps femoris. Subsequently, the left tibial nerve and the common peroneus nerve were sutured onto the ends of the connected donor solei. Two stimulation electrodes were affixed onto the ends of the donor solei for EMS delivery. The AMI rats were randomly divided into two groups. One group received the EMS treatment (designated as EMS_on) regularly for eight weeks and another received no EMS (designated as EMS_off). Two physiological parameters, nerve conduction velocity (NCV) and motor unit number, were derived from the electrically evoked compound action potential (CAP) signals to assess the electrophysiological performance of AMI. Our experimental results demonstrated that the reinnervated muscles of the EMS_on group generated higher CAP signals in comparison to the EMS_off group. Both NCV and motor unit number were significantly elevated in the EMS_on group. Moreover, the EMS_on group displayed statistically higher CAP signals on the indirectly activated proprioceptive afferents than the EMS_off group. These findings suggested that EMS treatment would be promising in enhancing the electrophysiological performance and facilitating the reinnervation process of AMI.
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spelling doaj-art-0ee4bffe08dc4491a50026e7b42a97ef2025-08-20T01:56:00ZengMDPI AGBioengineering2306-53542024-09-0111990410.3390/bioengineering11090904Using Electrical Muscle Stimulation to Enhance Electrophysiological Performance of Agonist–Antagonist Myoneural InterfaceJianping Huang0Ping Wang1Wei Wang2Jingjing Wei3Lin Yang4Zhiyuan Liu5Guanglin Li6Shenzhen Institute of Advanced Technology of the Chinese Academy of Sciences, Shenzhen 518055, ChinaBiomedical Sensing Engineering and Technology Research Center, Shandong University, Jinan 250000, ChinaShenzhen Institute of Advanced Technology of the Chinese Academy of Sciences, Shenzhen 518055, ChinaShenzhen Institute of Advanced Technology of the Chinese Academy of Sciences, Shenzhen 518055, ChinaShenzhen Institute of Advanced Technology of the Chinese Academy of Sciences, Shenzhen 518055, ChinaShenzhen Institute of Advanced Technology of the Chinese Academy of Sciences, Shenzhen 518055, ChinaShenzhen Institute of Advanced Technology of the Chinese Academy of Sciences, Shenzhen 518055, ChinaThe agonist–antagonist myoneural interface (AMI), a surgical method to reinnervate physiologically-relevant proprioceptive feedback for control of limb prostheses, has demonstrated the ability to provide natural afferent sensations for limb amputees when actuating their prostheses. Following AMI surgery, one potential challenge is atrophy of the disused muscles, which would weaken the reinnervation efficacy of AMI. It is well known that electrical muscle stimulus (EMS) can reduce muscle atrophy. In this study, we conducted an animal investigation to explore whether the EMS can significantly improve the electrophysiological performance of AMI. AMI surgery was performed in 14 rats, in which the distal tendons of bilateral solei donors were connected and positioned on the surface of the left biceps femoris. Subsequently, the left tibial nerve and the common peroneus nerve were sutured onto the ends of the connected donor solei. Two stimulation electrodes were affixed onto the ends of the donor solei for EMS delivery. The AMI rats were randomly divided into two groups. One group received the EMS treatment (designated as EMS_on) regularly for eight weeks and another received no EMS (designated as EMS_off). Two physiological parameters, nerve conduction velocity (NCV) and motor unit number, were derived from the electrically evoked compound action potential (CAP) signals to assess the electrophysiological performance of AMI. Our experimental results demonstrated that the reinnervated muscles of the EMS_on group generated higher CAP signals in comparison to the EMS_off group. Both NCV and motor unit number were significantly elevated in the EMS_on group. Moreover, the EMS_on group displayed statistically higher CAP signals on the indirectly activated proprioceptive afferents than the EMS_off group. These findings suggested that EMS treatment would be promising in enhancing the electrophysiological performance and facilitating the reinnervation process of AMI.https://www.mdpi.com/2306-5354/11/9/904agonist–antagonist myoneural interfaceelectrical muscle stimulationmuscle reinnervationproprioceptionelectromyographtargeted muscle reinnervation
spellingShingle Jianping Huang
Ping Wang
Wei Wang
Jingjing Wei
Lin Yang
Zhiyuan Liu
Guanglin Li
Using Electrical Muscle Stimulation to Enhance Electrophysiological Performance of Agonist–Antagonist Myoneural Interface
Bioengineering
agonist–antagonist myoneural interface
electrical muscle stimulation
muscle reinnervation
proprioception
electromyograph
targeted muscle reinnervation
title Using Electrical Muscle Stimulation to Enhance Electrophysiological Performance of Agonist–Antagonist Myoneural Interface
title_full Using Electrical Muscle Stimulation to Enhance Electrophysiological Performance of Agonist–Antagonist Myoneural Interface
title_fullStr Using Electrical Muscle Stimulation to Enhance Electrophysiological Performance of Agonist–Antagonist Myoneural Interface
title_full_unstemmed Using Electrical Muscle Stimulation to Enhance Electrophysiological Performance of Agonist–Antagonist Myoneural Interface
title_short Using Electrical Muscle Stimulation to Enhance Electrophysiological Performance of Agonist–Antagonist Myoneural Interface
title_sort using electrical muscle stimulation to enhance electrophysiological performance of agonist antagonist myoneural interface
topic agonist–antagonist myoneural interface
electrical muscle stimulation
muscle reinnervation
proprioception
electromyograph
targeted muscle reinnervation
url https://www.mdpi.com/2306-5354/11/9/904
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