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Assessment of radial pulse

Assessment of radial pulse

Assessment of Radial Pulse
The radial pulse, located at the wrist, is often the preferred site for assessing peripheral pulse because of its accessibility and dependability. The process of determining the radial pulse involves several steps:

Assessment of apical radial pulse

Assessment of apical radial pulse

Apical-Radial (A-R) Pulse Assessment
The A-R pulse assessment involves simultaneous evaluation of the apical and radial pulses. When the apical and radial pulse rates vary, this assessment helps identify a pulse deficit.
Pre-Procedural Preparation

Radial System Protection

Radial System Protection

Radial systems employ time-delay overcurrent relays to reduce load interruptions. When a fault occurs, the nearest breaker opens first, while upstream breakers remain closed due to longer delay settings. This approach ensures minimal disruption to the rest of the system.
In a radial system with a fault downstream of the third breaker, ideally, only the third breaker will open, isolating the fault and interrupting the load connected beyond it. The second breaker has a longer delay setting,...

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...

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Related Experiment Video

Updated: Apr 11, 2026

In Vivo Electrophysiological Measurement of the Rat Ulnar Nerve with Axonal Excitability Testing

In Vivo Electrophysiological Measurement of the Rat Ulnar Nerve with Axonal Excitability Testing

Published on: February 6, 2018

UNIVERSAL, LOW-COST TRANSRADIAL CHECK SOCKET FOR RAPIDLY VALIDATING MYOELECTRIC CONTROL.

Abigail R Citterman^1,2, Taylor C Hansen¹, Eric S Stone¹

¹Biomedical Engineering, University of Utah.

Myoelectric Controls and Upper Limb Prosthetics Symposium

|April 10, 2026

Summary

Researchers developed a low-cost, 3D-printed transradial socket for myoelectric prosthetics. This universal check socket allows rapid fitting and enhances end-user involvement in prosthetic control research.

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Area of Science:

Biomedical Engineering
Rehabilitation Engineering
Prosthetics and Orthotics

Background:

Traditional custom prosthetic sockets are time-consuming and expensive to fabricate.
This limits end-user participation in validating myoelectric prosthetic control strategies.
Current validation methods often use virtual reality or robotic arms, excluding direct user feedback.

Purpose of the Study:

To present a low-cost, 3D-printed transradial socket for rapid, custom fitting.
To enable greater end-user involvement in the validation of myoelectric prosthetic control strategies.
To create a versatile socket adaptable to various users and terminal devices.

Main Methods:

A multi-user, 3D-printed transradial check socket was designed for short-term use.
The socket was fabricated prior to participant arrival and fitted within ten minutes.
It was tested for comfort, donning time, adaptability, and impact on electromyography (EMG) signal quality.

Main Results:

The socket cost under $10 USD in materials and fitted multiple participants rapidly.
It accommodated various residual limbs and terminal devices without significantly impeding function.
No significant reduction in EMG signal-to-noise ratio was observed, and the socket was comfortable for over two hours.

Conclusions:

The developed universal transradial check socket is a low-cost, efficient solution for prosthetic research.
It facilitates rapid customization and enhances end-user participation in validating myoelectric control.
This innovation represents a significant step towards more inclusive prosthetic research and development.