Cited by 169Exercise and Physiological ResponsesSports Performance and TrainingStress Responses and Cortisol

The overtraining syndrome in athletes: A stress-related disorder

Angeli, A., Minetto, M., Dovio, A., Paccotti, P.·2004·Journal of Endocrinological Investigation

Abstract

Physical exercise is a type of allostatic load for several endocrine systems, notably the hypothalamic-pituitary-adrenal (HPA) axis. Athletes undergoing a strenuous training schedule can develop a significant decrease in performance associated with systemic symptoms or signs: the overtraining syndrome (OTS). This is a stress-related condition that consists of alteration of physiological functions and adaptation to performance, impairment of psychological processing, immunological dysfunction and biochemical abnormalities. Universally agreed diagnostic criteria for OTS are lacking. The pituitary-adrenal response to a standardized exercise test is usually reduced in overtrained athletes. This HPA dysfunction could reflect the exhaustion stage of Selye's general adaptation syndrome. The most attractive hypothesis that accounts for the observed neuro-endocrine-immune dysregulation is the Smith's cytokine hypothesis of OTS. It assumes that physical training can produce muscle and skeletal trauma, thus generating a local inflammatory reaction. With the excessive repetition of the training stimulus the local inflammation can generate a systemic inflammatory response. The main actors of these processes are the cytokines, polypeptides that modulate HPA function in and outside the brain at nearly every level of activity. It is hoped that future research will focus on endogenous risk factors for morbidities related to the neuro-endocrine-immune adaptation to exercise.

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Crossref · 10.1007/bf03347487

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Authors
Angeli, A., Minetto, M., Dovio, A., & Paccotti, P.
Affiliations
Ospedale San Luigi Gonzaga (IT)
Corresponding author
Minetto, M.
Venue
Journal of Endocrinological Investigation
Published
2004-06
Volume
27
Issue
6
Pages
603-612
ISSN
  • 0391-4097 (ISSN-L)
  • 1720-8386
OpenAlex
W2073564445
Cited by
169
References
94
Citations by year
2026: 4 · 2025: 8 · 2024: 6 · 2023: 7 · 2022: 9 · 2021: 6 · 2020: 17 · 2019: 15 · 2018: 10 · 2017: 7 · 2016: 8 · 2015: 8 · 2014: 5 · 2013: 8 · 2012: 4
FWCI
1.05
Type
journal article
Language
en
Open access
closed
Locations
  • Journal of Endocrinological Investigation (publishedVersion)
  • PubMed (publishedVersion)
  • Institutional Research Information System University of Turin (University of Turin) (submittedVersion)
Topics
  • Health Sciences › Medicine › Rehabilitation › Exercise and Physiological Responses
  • Health Sciences › Medicine › Orthopedics and Sports Medicine › Sports Performance and Training
  • Life Sciences › Neuroscience › Behavioral Neuroscience › Stress Responses and Cortisol
Keywords
overtraining syndrome, athletes, hypothalamic-pituitary-adrenal axis, allostatic load, general adaptation syndrome, cytokines, immune dysfunction, exercise-induced inflammation, training stress, diagnostic criteria, performance impairment
MeSH terms
Adaptation, Physiological, Physical Exertion, Fatigue, Humans, Hypothalamo-Hypophyseal System, Inflammation, Peptides, Pituitary-Adrenal System, Risk Factors, Sports, Stress, Psychological, Syndrome, Cytokines

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