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

Adrenal medulla and exercise training

M Kjaer1

  • 1Department of Rheumatology H, Bispbjerg Hospital, Copenhagen NV, Denmark.

European Journal of Applied Physiology and Occupational Physiology
|April 16, 1998
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

Tendon's 'first aid' response - new insights into acute tendon molecular reprogramming after rupture.

The Journal of physiology·2025
Same author

Lower basal and postprandial muscle protein synthesis after 2 weeks single-leg immobilization in older men: No protective effect of anti-inflammatory medication.

Physiological reports·2024
Same author

Acute loading has minor influence on human articular cartilage gene expression and glycosaminoglycan composition in late-stage knee osteoarthritis: a randomised controlled trial.

Osteoarthritis and cartilage·2023
Same author

The regional turnover of cartilage collagen matrix in late-stage human knee osteoarthritis.

Osteoarthritis and cartilage·2022
Same author

Effects of genipin crosslinking on mechanical cell-matrix interaction in 3D engineered tendon constructs.

Journal of the mechanical behavior of biomedical materials·2021
Same author

Hoof conformation in Icelandic competition horses and its interrelationship with hoof pathologies and tölt performance.

Veterinary journal (London, England : 1997)·2020

Endurance training enhances the adrenal medulla's epinephrine secretion capacity, creating a "sports adrenal medulla." This adaptation benefits athletic performance and may counteract aging effects.

Area of Science:

  • Endocrinology
  • Exercise Physiology
  • Sports Medicine

Background:

  • Adrenaline (epinephrine) release from the adrenal medulla increases with exercise intensity.
  • Endurance-trained individuals show a blunted adrenaline response at absolute exercise intensities compared to sedentary individuals.
  • This suggests altered sympathetic nervous system regulation of the adrenal medulla in trained athletes.

Purpose of the Study:

  • To investigate the epinephrine secretion capacity of the adrenal medulla in endurance-trained athletes versus sedentary individuals.
  • To explore the concept of a "sports adrenal medulla" as a long-term adaptation to physical training.
  • To understand the implications of these adaptations for exercise performance and aging.

Main Methods:

  • Comparison of epinephrine secretion in endurance-trained athletes and sedentary individuals.

Related Experiment Videos

  • Assessment of responses at both absolute and relative exercise intensities.
  • Evaluation of responses to non-exercise stimuli.

    • Main Results:

    • Endurance-trained athletes exhibit a higher epinephrine secretion capacity compared to sedentary individuals, particularly at relative workloads and during non-exercise stress.
    • Despite a less pronounced response at absolute intensities, trained individuals demonstrate a greater potential for epinephrine release.
    • This supports the existence of an adapted "sports adrenal medulla" in endurance athletes.

    Conclusions:

    • Long-term endurance training leads to adaptive changes in the adrenal medulla, termed the "sports adrenal medulla."
    • This adaptation enhances epinephrine secretion capacity, potentially improving exercise performance.
    • Such adaptations may also contribute to biological rejuvenation and mitigate age-related physiological decline.