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 Experiment Videos

Force maintenance with submaximal fatiguing contractions.

David G Behm1

  • 1School of Human Kinetics and Recreation, Memorial University of Newfoundland, St. Johns, Newfoundland.

Canadian Journal of Applied Physiology = Revue Canadienne De Physiologie Appliquee
|June 17, 2004
PubMed
Summary
This summary is machine-generated.

Related Concept Videos

You might also read

Related Articles

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

Sort by
Same author

The Impact of a Single Bout of Antagonist Stretching on Agonist Muscle Performance and Range of Motion: A Systematic review and Meta-analysis.

Sports medicine - open·2026
Same author

The Components of Physical Fitness in Adults: A Roundtable Statement by the American College of Sports Medicine.

Medicine and science in sports and exercise·2026
Same author

Effects of Combined Training on Physical Fitness According to Maturity in Male Youth Soccer Players.

Journal of strength and conditioning research·2026
Same author

What are the neurological, neurovascular, and psychological responses to stretching across the general population?

European journal of applied physiology·2026
Same author

Mirror Visual Feedback Selectively Attenuates Crossover Fatigue in Distal Upper Limb Musculature: A Randomized Controlled Crossover Investigation Comparing Children and Adults.

Life (Basel, Switzerland)·2026
Same author

Physical Performance Impairment with Cannabis Consumption in Adults Over 12 Hours.

Journal of drug education·2026

Muscle fatigue can occur without reduced performance, involving complex neuromuscular adjustments and inhibitory factors. This study explores the balance between force enhancement and neural inhibition during sustained muscle contractions.

Area of Science:

  • Neuromuscular Physiology
  • Exercise Science

Background:

  • Muscle fatigue definitions often focus on external performance decrements.
  • Fatigue can exist internally without observable changes in muscle output.
  • Maintaining submaximal forces involves a balance between facilitatory and inhibitory neuromuscular processes.

Purpose of the Study:

  • To explore the mechanisms of muscle fatigue beyond external performance measures.
  • To investigate the interplay between neuromuscular facilitation and inhibition during sustained contractions.
  • To understand how the neuromuscular system adapts to metabolic challenges and maintains submaximal force output.

Main Methods:

  • Analysis of neuromuscular responses during sustained submaximal contractions.
  • Examination of neural and muscular factors contributing to force maintenance and fatigue.

Related Experiment Videos

  • Review of existing literature on postactivation potentiation and inhibitory influences.

    • Main Results:

    • Muscle fatigue can occur without a decrease in external force production.
    • Facilitatory processes like postactivation potentiation (increased Ca++ sensitivity) contribute to force maintenance.
    • The neuromuscular system employs strategies such as motor unit recruitment and firing frequency modulation to cope with fatigue.
    • Neural potentiation and dissociation of muscle activity are observed with submaximal fatigue.
    • Inhibitory influences can originate supraspinally or at the spinal level, with afferent feedback playing a significant role.

    Conclusions:

    • Muscle fatigue is a complex phenomenon involving both facilitatory and inhibitory neural mechanisms.
    • The neuromuscular system actively manages competing influences to maintain submaximal force output.
    • Understanding these internal adjustments is crucial for a comprehensive definition of muscle fatigue.