Mixed
Overtraining Syndrome (OTS) is diagnosed by excluding organic diseases and confounding factors (such as caloric restriction, iron deficiency, or infections) rather than by a single positive diagnostic marker, as no current test meets all diagnostic criteria.
If you are experiencing unexplained performance decline and fatigue, do not rely on a single blood test to diagnose 'overtraining.' Instead, work with a professional to systematically rule out other causes like illness, nutrient deficiencies (iron, magnesium), or caloric deficits. The diagnosis is made by excluding these factors and observing a prolonged maladaptation to training stress.
One approach to understanding the etiology of OTS involves the exclusion of organic diseases or infections and factors such as dietary caloric restriction (negative energy balance) and insufficient carbohydrate and/or protein intake, iron deficiency, magnesium deficiency, allergies, etc. together with identification of initiating events or triggers.
Why this rating
This is a consensus position statement from the European College of Sport Science.
Source
Prevention, diagnosis and treatment of the Overtraining Syndrome
Romain Meeusen et al. · European Journal of Sport Science · 2006
DOI 10.1080/17461390600617717
More from this paper
- Functional Overreaching (FOR) is a normal part of training that leads to performance improvement after recovery, whereas Non-Functional Overreaching (NFOR) and Overtraining Syndrome (OTS) involve prolonged maladaptation and performance decrements that take weeks or months to resolve.Strong
- Hormonal markers, such as the testosterone/cortisol ratio, are not reliable for diagnosing Overtraining Syndrome because they reflect acute physiological strain rather than the syndrome itself, and no single hormonal test is generally accepted.Strong
Related findings · Mixed
- Bariatric surgery (VSG and RYGB) is the most effective and sustainable treatment for obesity, producing marked and sustained weight loss that non-surgical interventions cannot match.Strong
- Severely protein-deficient diets (2–3% energy) induce lean body mass loss and metabolic imbalance, whereas adequate protein intake (0.66 g/kg/d minimum) is a prerequisite for maintaining muscle, bone, and physiological function.Strong
- For patients with Class III obesity (BMI >39.9 kg/m2), metabolic bariatric surgery (MBS) is significantly more effective than any currently approved medication, with BilioPancreatic Diversion (BPD) showing the highest estimated weight loss.Strong
This is one finding among thousands. Every one is graded and traced to its source, so you can see what the evidence actually supports. Browse the research →