How are TSH Schilddrüse and Sport related?

The relationship between TSH (thyroid-stimulating hormone) and exercise is not directly addressed in the provided context. Generally, acute exercise can transiently increase TSH, while chronic endurance training may slightly lower basal TSH levels. The hypothalamic-pituitary-thyroid axis is sensitive to energy deficits, stress, and inflammation. In athletes with overtraining or low energy availability (e.g., RED-S), a functional hypothyroidism with low T3 and normal or slightly elevated TSH can occur. Conversely, undiagnosed hypothyroidism can impair performance. The evidence is mostly observational and insufficient for clinical recommendations. Genetic tests for TSH receptor polymorphisms or thyroid hormone transporters have no established clinical relevance for exercise guidance. TSH interpretation should always consider T3, T4, physical status, and symptoms. Consumer tests that derive sport recommendations solely from TSH or genetic markers are not scientifically supported.