Research

Hormonal

In an early stage of overtraining syndrome, the cortisol response decreases despite increased pituitary ACTH release.

Monitoring cortisol levels may be crucial in early detection of overtraining syndrome.

StrongSupportsmedium confidence
the decreased adrenal responsiveness is no longer compensated. The cortisol response decreases.
M. Lehmann et al. · Medicine & Science in Sports & Exercise · 1998

Why this rating

The claim is based on observed physiological changes during the syndrome.

Source

Autonomic imbalance hypothesis and overtraining syndrome

M. Lehmann et al. · Medicine & Science in Sports & Exercise · 1998

DOI 10.1097/00005768-199807000-00019

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DOI resolved against Crossref · corpus check 2026-06-10

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