Related Experiment Video

Updated: Mar 27, 2026

Ex Vivo Assessment of Contractility, Fatigability and Alternans in Isolated Skeletal Muscles
14:02

Ex Vivo Assessment of Contractility, Fatigability and Alternans in Isolated Skeletal Muscles

Published on: November 1, 2012

25.1K

Muscular fatigue detection using sEMG in dynamic contractions

Diana R Bueno, J M Lizano, L Montano

    Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual International Conference
    |January 7, 2016
    PubMed

    More Related Videos

    Determining The Electromyographic Fatigue Threshold Following a Single Visit Exercise Test06:00

    Determining The Electromyographic Fatigue Threshold Following a Single Visit Exercise Test

    Published on: July 27, 2015

    13.2K
    Functional Isolation of Single Motor Units of Rat Medial Gastrocnemius Muscle06:54

    Functional Isolation of Single Motor Units of Rat Medial Gastrocnemius Muscle

    Published on: December 26, 2020

    6.0K

    Related Concept Videos

    Motor Unit Stimulation01:20

    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...
    4.7K
    Muscle Stimulation Frequency01:22

    Muscle Stimulation Frequency

    The contraction strength of muscles is regulated by motor neurons, which modulate the frequency of action potentials dispatched to the motor units based on the body's requirements. This process of varying the muscle stimulation frequency allows muscles to contract with a force that is precisely tailored to the needs of the moment, whether lifting a feather or a heavy box.
    Wave summation
    At low firing rates, motor neurons induce individual twitch contractions in muscle fibers. These twitches...
    5.0K
    Isotonic and Isometric Muscle Contractions01:22

    Isotonic and Isometric Muscle Contractions

    Two primary types of muscle contractions are isotonic and isometric, each serving unique functions and involving distinct mechanisms. Both isotonic and isometric contractions are integral to the body's complex system of movement and stability. Isotonic exercises contribute significantly to functional strength and movement, while isometric contractions are crucial for maintaining posture and joint stability.
    Isotonic contractions
    Isotonic contractions occur when a muscle changes length while...
    9.1K
    Muscle Contraction01:15

    Muscle Contraction

     
    100.4K
    Excitation-Contraction Coupling in Skeletal Muscles01:20

    Excitation-Contraction Coupling in Skeletal Muscles

    Excitation-contraction coupling is a series of events that occur between generating an action potential and initiating a muscle contraction. It occurs at the triad, a structure found in skeletal muscle fibers that comprise a T-tubule and terminal cisternae of the sarcoplasmic reticulum on each side. These triads are visible in longitudinally sectioned muscle fibers. They are typically located at the A-I junction — the junction between the A and I bands of the sarcomere.
    When an action...
    19.1K