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

Muscle Stimulation Frequency01:22

Muscle Stimulation Frequency

5.1K
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...
5.1K
Muscle Recovery and Fatigue01:24

Muscle Recovery and Fatigue

4.9K
Muscle fatigue refers to the decline in a muscle's ability to maintain the force of contraction after prolonged activity. It primarily stems from changes within muscle fibers. Even before experiencing muscle fatigue, one may feel tired and have the urge to stop the activity. This response, known as central fatigue, occurs due to changes in the central nervous system, namely the brain and spinal cord. While there is no single mechanism that induces fatigue, it may serve as a protective...
4.9K
Fatigue01:21

Fatigue

1.1K
Fatigue occurs when materials rupture under repeated or fluctuating loads, even at stress levels far below their static breaking strength. It typically results in brittle failure, even for ductile materials. It is a critical consideration in designing machines and structural components subjected to repetitive or varying loads. The nature of these loadings can range from fluctuating loads like unbalanced pump impellers causing vibrations to repeatedly bending a thin steel rod wire back and forth...
1.1K

You might also read

Related Articles

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

Sort by
Same author

Measurements of the [Formula: see text][Formula: see text] production cross sections in the [Formula: see text] channel in proton-proton collisions at [Formula: see text] and [Formula: see text] and combined constraints on triple gauge couplings.

The European physical journal. C, Particles and fields·2015
Same author

Discarded Human Thymus Is a Novel Source of Stable and Long-Lived Therapeutic Regulatory T Cells.

American journal of transplantation : official journal of the American Society of Transplantation and the American Society of Transplant Surgeons·2015
Same author

Constraints on the pMSSM, AMSB model and on other models from the search for long-lived charged particles in proton-proton collisions at [Formula: see text].

The European physical journal. C, Particles and fields·2015
Same author

Distributions of topological observables in inclusive three- and four-jet events in pp collisions at [Formula: see text][Formula: see text].

The European physical journal. C, Particles and fields·2015
Same author

Evidence for Collective Multiparticle Correlations in p-Pb Collisions.

Physical review letters·2015
Same author

Constraints on parton distribution functions and extraction of the strong coupling constant from the inclusive jet cross section in pp collisions at [Formula: see text][Formula: see text].

The European physical journal. C, Particles and fields·2015

Related Experiment Video

Updated: Mar 31, 2026

Determining The Electromyographic Fatigue Threshold Following a Single Visit Exercise Test
06:00

Determining The Electromyographic Fatigue Threshold Following a Single Visit Exercise Test

Published on: July 27, 2015

13.3K

Eccentric Fatigue Modulates Stretch-shortening Cycle Effectiveness--A Possible Role in Lower Limb Overuse Injuries.

J Debenham1, M Travers2, W Gibson1

  • 1School of Physiotherapy, University of Notre Dame Australia, Fremantle, Australia.

International Journal of Sports Medicine
|October 29, 2015
PubMed
Summary

Eccentric fatigue impairs stretch-shortening cycle (SSC) effectiveness in healthy individuals, altering muscle timing and increasing stiffness during hopping. This finding is crucial for understanding overuse injuries.

More Related Videos

Paradigms of Lower Extremity Electrical Stimulation Training After Spinal Cord Injury
08:07

Paradigms of Lower Extremity Electrical Stimulation Training After Spinal Cord Injury

Published on: February 1, 2018

13.3K
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

Related Experiment Videos

Last Updated: Mar 31, 2026

Determining The Electromyographic Fatigue Threshold Following a Single Visit Exercise Test
06:00

Determining The Electromyographic Fatigue Threshold Following a Single Visit Exercise Test

Published on: July 27, 2015

13.3K
Paradigms of Lower Extremity Electrical Stimulation Training After Spinal Cord Injury
08:07

Paradigms of Lower Extremity Electrical Stimulation Training After Spinal Cord Injury

Published on: February 1, 2018

13.3K
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

Area of Science:

  • Biomechanics
  • Exercise Physiology
  • Sports Medicine

Background:

  • Fatigue is a key factor in injury development, particularly eccentric fatigue in stretch-shortening cycle (SSC) activities.
  • Eccentric fatigue may contribute to lower limb overuse injuries.

Purpose of the Study:

  • To investigate the impact of ankle plantarflexor eccentric fatigue on SSC effectiveness during hopping.
  • To analyze changes in lower limb stiffness, kinematics, and muscle activation patterns post-fatigue.

Main Methods:

  • 11 healthy volunteers performed a sub-maximal hopping task on a specialized sledge system.
  • 3D motion capture and surface electromyography (EMG) were used to collect biomechanical and neuromuscular data.
  • Data were analyzed using a linear mixed model to compare baseline and post-fatigue conditions.

Main Results:

  • Eccentric fatigue significantly increased lower limb stiffness by 15.3% (P<0.001).
  • Ankle stretch amplitude decreased by 9.1% (P<0.001), while other kinematic measures remained unchanged.
  • Muscle activation timing shifted for soleus and tibialis anterior (P<0.001).

Conclusions:

  • Eccentric fatigue demonstrably alters SSC effectiveness in healthy individuals.
  • These alterations in biomechanics and muscle function may inform the pathogenetic models of overuse injuries.