Related Experiment Video
Updated: Jul 17, 2026

"Avatar", a Modified Ex vivo Work Loop Experiments Using In vivo Strain and Activation
Published on: August 18, 2023
On electromechanical behaviour of frog sartorius muscles
Zizhen Liu1, Zhende Hou, Qinghua Qin
1School of Aerospace, Mechanical & Mechatronic Engineering, the University of Sydney, NSW 2006 Australia.
Abstract:
Considering coupled electromechanical properties of biological soft tissues is an innovative characterization of most soft tissues, this paper reports our experimental observation on electromechanical properties of frog sartorius muscles including the experiment design, test sample preparation, test results and analysis. The experiment results indicate that the electric potential generated in the frog muscle tissues varies with external mechanical loadings. The electric voltage increases with an increase in the frog muscles deformation. This phenomenon is found to be loading cycle and frequency dependency. The experiment results demonstrated that frog muscle tissues can convert their mechanical deformations into electrical signals significantly. The experiment work here is an essential step in understanding the complex electromechanical behaviour of biological soft tissue. It may lead to further research in determining quantitatively the complex electromechanical properties of biological soft tissues.
Related Concept Videos
Design Example: Frog Muscle Response
When the switch connecting the RL circuit is closed, a brief muscle contraction is observed. This is because, at a steady state, the inductor acts like a short circuit,...
Generation of Action Potential in Skeletal Muscles
Like neurons, muscle cells are also regarded as excitable due to their capacity to change in response to stimuli, primarily due to voltage-gated ion channels embedded in their plasma membranes, which get activated by alterations in the cell's...
Excitation-Contraction Coupling in Skeletal Muscles
When an action potential...
Motor Unit Stimulation
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...

