Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Arteries of the Upper Limbs01:12

Arteries of the Upper Limbs

2.3K
The subclavian artery transitions into the axillary artery as it exits the chest and enters the axillary region. This artery is critical for supplying blood to the shoulder area, including the head of the humerus, through the humeral circumflex arteries. As the vessel continues into the upper arm or brachium, it becomes the brachial artery. This artery plays a key role in vascularizing the brachial region and bifurcates at the elbow into several branches. These branches include the deep...
2.3K
Veins of Upper Limbs01:17

Veins of Upper Limbs

4.2K
The human circulatory system, a marvel of biological engineering, is a complex network of vessels that transport blood throughout the body. Among these, the veins responsible for carrying blood from the upper limbs are divided into two categories: deep and superficial.
The deep venous system is primarily composed of the ulnar and radial veins. The ulnar vein, which drains the fingers through the superficial palmar venous arches, and the radial vein, which serves the palms via the deep palmar...
4.2K
Motor Units00:46

Motor Units

61.9K
A motor unit consists of two main components: a single efferent motor neuron (i.e., a neuron that carries impulses away from the central nervous system) and all of the muscle fibers it innervates. The motor neuron may innervate multiple muscle fibers, which are single cells, but only one motor neuron innervates a single muscle fiber.
61.9K
Motor Units01:13

Motor Units

8.1K
The motor unit is a fundamental component of the neuromuscular system and plays a crucial role in coordinating muscle contractions. It consists of a somatic motor neuron, which connects and controls multiple skeletal muscle fibers, forming a single functional segment. The axon of the motor neuron branches out and establishes synaptic connections known as neuromuscular junctions with individual muscle fibers within the motor unit.
Motor units come in different sizes, with smaller units...
8.1K
Bones of the Upper Limb: Humerus01:19

Bones of the Upper Limb: Humerus

7.2K
The upper limb consists of the arm, forearm, wrist, and hand bones. The humerus is the single bone of the upper arm region. Proximally, it has a large, spherical, smooth head that articulates with the glenoid cavity of the scapula to form the glenohumeral or shoulder joint. The margin of the head is the anatomical neck, a residual epiphyseal plate. Laterally it extends to form bony projections called the greater tubercle and the lesser tubercle. Next to the tubercles is the surgical neck, a...
7.2K
Bones of the Upper Limb: Ulna01:15

Bones of the Upper Limb: Ulna

4.5K
The ulna and radius are parallel bones of the antebrachium or the forearm. The ulna lies medially and consists of a bony tip called the olecranon process at its proximal end. This hook-like projection articulates with the olecranon fossa of the humerus and forms the "hinged" ulnohumeral part of the elbow joint. This joint facilitates forearm extension and flexion while preventing its hyperextension. Similarly, the coronoid process, another bony projection on the proximal/anterior side...
4.5K

You might also read

Related Articles

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

Sort by
Same author

Intensive combined balneotherapy and aquatic exercise for knee osteoarthritis: short-term clinical and functional outcomes.

Frontiers in medicine·2026
Same author

Multimodal analysis of postural control in adults at risk of falls<sup></sup>.

Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual International Conference·2025
Same author

Parry-Romberg syndrome associated with ataxia: description of a patient improved after neurorehabilitation.

European journal of translational myology·2025
Same author

Analysis of vibration and comfort in infants.

Scientific reports·2025
Same author

EEG Markers of Improved Proprioception and Posture in Older Women With Osteoporosis.

IEEE transactions on neural systems and rehabilitation engineering : a publication of the IEEE Engineering in Medicine and Biology Society·2025
Same author

Balance rehabilitation and Long Covid syndrome: effectiveness of thermal water treatment vs. home-based program.

Frontiers in rehabilitation sciences·2025

Related Experiment Video

Updated: Feb 1, 2026

Author Spotlight: Using Motor Imagery Brain-Computer Interface to Improve Motor and Cognitive Function in Stroke Patients
09:42

Author Spotlight: Using Motor Imagery Brain-Computer Interface to Improve Motor and Cognitive Function in Stroke Patients

Published on: September 1, 2023

2.1K

Motor unit drive: a neural interface for real-time upper limb prosthetic control.

Michael D Twardowski1,2, Serge H Roy1,3, Zhi Li2

  • 1Delsys Inc. and Altec Inc., Natick, MA, United States of America.

Journal of Neural Engineering
|December 8, 2018
PubMed
Summary

A new noninvasive neural interface, motor unit drive (MU Drive), decodes natural motor signals for prosthetic control. This technology improves prosthetic responsiveness and user intent replication, addressing limitations of current myoelectric devices.

More Related Videos

Author Spotlight: Enhancing Post-Stroke Upper Limb Rehabilitation with Robotic Technologies for Improved Motor Recovery and Functional Outcomes
04:49

Author Spotlight: Enhancing Post-Stroke Upper Limb Rehabilitation with Robotic Technologies for Improved Motor Recovery and Functional Outcomes

Published on: September 6, 2024

1.5K
Brain-Computer Interface-controlled Upper Limb Robotic System for Enhancing Daily Activities in Stroke Patients
06:11

Brain-Computer Interface-controlled Upper Limb Robotic System for Enhancing Daily Activities in Stroke Patients

Published on: April 18, 2025

1.6K

Related Experiment Videos

Last Updated: Feb 1, 2026

Author Spotlight: Using Motor Imagery Brain-Computer Interface to Improve Motor and Cognitive Function in Stroke Patients
09:42

Author Spotlight: Using Motor Imagery Brain-Computer Interface to Improve Motor and Cognitive Function in Stroke Patients

Published on: September 1, 2023

2.1K
Author Spotlight: Enhancing Post-Stroke Upper Limb Rehabilitation with Robotic Technologies for Improved Motor Recovery and Functional Outcomes
04:49

Author Spotlight: Enhancing Post-Stroke Upper Limb Rehabilitation with Robotic Technologies for Improved Motor Recovery and Functional Outcomes

Published on: September 6, 2024

1.5K
Brain-Computer Interface-controlled Upper Limb Robotic System for Enhancing Daily Activities in Stroke Patients
06:11

Brain-Computer Interface-controlled Upper Limb Robotic System for Enhancing Daily Activities in Stroke Patients

Published on: April 18, 2025

1.6K

Area of Science:

  • Biomedical Engineering
  • Neuroscience
  • Rehabilitation Technology

Background:

  • Modern prosthetic limbs face limitations in control due to outdated myoelectric interfaces.
  • Amplitude-based myoelectric interfaces have not evolved in over 40 years, leading to high abandonment rates for prosthetic users.
  • There is a significant need for advanced prosthetic control to improve user experience and functionality.

Purpose of the Study:

  • To develop a novel noninvasive neural interface for prosthetic control.
  • To map natural motor unit increments into biomechanically informed signals for improved prosthetic function.
  • To overcome the limitations of conventional amplitude-based myoelectric control.

Main Methods:

  • Developed motor unit drive (MU Drive) technology using real-time machine learning algorithms.
  • Measured motor unit firings from surface electromyographic signals in residual limb muscles.
  • Transformed extracted firings into biomechanically informed signals representing intended movement.

Main Results:

  • MU Drive provides a more responsive real-time control signal compared to conventional methods.
  • The new interface offers improved signal smoothness and more faithful replication of intended limb movement.
  • MU Drive overcomes the performance-latency trade-off inherent in amplitude-based myoelectric systems.

Conclusions:

  • MU Drive is the first noninvasive neural interface providing real-time access to natural motor control for prosthetics.
  • This technology promises to enhance prosthetic function by better reflecting user intent.
  • MU Drive offers potential applications beyond prosthetics, including exoskeletons and assistive robotic devices.