Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Related Concept Videos

Motor Unit Stimulation

Motor Unit Stimulation

When the neuron of a motor unit fires an action potential, it triggers a series of events, leading to a twitch contraction in the muscle fibers. The process of excitation-contraction coupling is crucial in relaying the action potential to the muscle fibers.
The latent period of contraction marks the onset of excitation-contraction coupling, when the action potential propagates across the sarcolemma, preparing the muscle fibers for contraction. As the fibers enter the contraction phase, the...

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by

Same author

[A QUESTIONNAIRE SURVEYON TREATMENT SELECTION FOR PATIENTS WITH ADVANCED PROSTATE CANCER IN JAPAN].

Hinyokika kiyo. Acta urologica Japonica·2026

Same author

Vapor-Controlled Full-Color Luminescence in Platinum(II) Complexes Bearing N-Heterocyclic Carbene and a Flexible Alkyl Chain.

Angewandte Chemie (International ed. in English)·2026

Same author

Switchable photoluminescence of europium(III) complexes with chromonylhydrazones.

Chemical communications (Cambridge, England)·2026

Same author

Clinical utility of urinary microRNA (miR-1273g-3p) in male patients with detrusor underactivity.

World journal of urology·2026

Same author

Genetic Predictors of Progression and Skin Rash in Japanese mCSPC Patients Treated With Apalutamide: CUARTET Study.

Cancer science·2026

Same author

Efficacy and Safety of Vibegron Add-On Therapy for Persistent Overactive Bladder Symptoms in Benign Prostatic Hyperplasia Patients With α<sub>1</sub>-Blocker Treatment: A Multi-Center Prospective Randomized Controlled Study (VATON Study).

Lower urinary tract symptoms·2026

Search research articles

Related Experiment Video

Updated: Jul 17, 2026

Fabrication of the Composite Regenerative Peripheral Nerve Interface (C-RPNI) in the Adult Rat

Fabrication of the Composite Regenerative Peripheral Nerve Interface (C-RPNI) in the Adult Rat

Published on: February 25, 2020

Interferential current stimulation for sensory communication between prosthetic hand and man.

Kunihiko Nomura¹, Keita Yada, Masafumi Saihara

¹Department of Biomedical Engineering, Osaka Electro-Communication University, Osaka, Japan. n-kuni@isc.osakac.ac.jp.

Conference Proceedings : ... Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual Conference

|February 7, 2007

Summary

Interferential current (IFC) stimulation can provide sensory feedback for myoelectric prosthetic hands. By adjusting phase differences and electrode placement, IFC effectively transmits movement information while minimizing interference with EMG signals.

More Related Videos

The Muscle Cuff Regenerative Peripheral Nerve Interface for the Amplification of Intact Peripheral Nerve Signals

The Muscle Cuff Regenerative Peripheral Nerve Interface for the Amplification of Intact Peripheral Nerve Signals

Published on: January 13, 2022

Related Experiment Videos

Last Updated: Jul 17, 2026

Fabrication of the Composite Regenerative Peripheral Nerve Interface (C-RPNI) in the Adult Rat

Fabrication of the Composite Regenerative Peripheral Nerve Interface (C-RPNI) in the Adult Rat

Published on: February 25, 2020

The Muscle Cuff Regenerative Peripheral Nerve Interface for the Amplification of Intact Peripheral Nerve Signals

The Muscle Cuff Regenerative Peripheral Nerve Interface for the Amplification of Intact Peripheral Nerve Signals

Published on: January 13, 2022

Area of Science:

Biomedical Engineering
Neuroprosthetics
Sensory Feedback Systems

Background:

Myoelectric prosthetic hands require effective sensory feedback systems.
Interferential current (IFC) stimulation has shown potential for modulating perceived stimulus intensity.
Understanding IFC's interaction with electromyography (EMG) signals is crucial for prosthetic applications.

Purpose of the Study:

To evaluate the utility of the interferential current (IFC) method for transmitting information to users of myoelectric prosthetic hands.
To investigate the relationship between perceived stimulus location and IFC parameters, specifically phase differences.
To assess the impact of electrode placement on IFC interference with EMG signals.

Main Methods:

Utilized IFC stimulation with two alternating current (AC) waves of the same median frequency but different phases.
Manipulated the phase difference to induce movement in the perceived stimulus location.
Examined the effect of varying distances between recording and stimulating electrodes on IFC-EMG signal interference.
Applied a low-pass filter (< 500Hz) to assess its efficacy in mitigating interference.

Main Results:

Changing the phase difference of IFC waves successfully altered the perceived stimulus location.
IFC significantly interfered with EMG signals, particularly when recording electrodes were placed directly over stimulating electrodes.
Moving recording electrodes further from stimulating electrodes reduced IFC interference.
A low-pass filter effectively eliminated IFC interference with EMG signals.

Conclusions:

The IFC method, by modulating phase differences, can create a sense of movement for prosthetic hand feedback.
Strategic electrode placement and the use of low-pass filters are essential for minimizing IFC interference with EMG.
Combining IFC with an appropriately filtered EMG recording system offers a viable sensory feedback solution for myoelectric prosthetics.