The unique composite profile of endogenous biomarkers, particularly hormones, metabolites, and inflammatory markers, that characterizes an individual’s current physiological capacity for high-level output. This signature provides an objective biochemical snapshot of readiness and recovery status. Identifying this signature is vital for personalized training and recovery prescription.
Origin
This term merges clinical laboratory science with sports endocrinology, aiming to quantify the body’s internal chemical environment relevant to physical stress adaptation. “Signature” implies a specific, identifiable pattern unique to the individual’s current adaptive state.
Mechanism
The signature is established through the interplay of anabolic hormones (like testosterone and IGF-1), catabolic markers (like cortisol ratios), and markers of cellular stress. For example, a low total testosterone to cortisol ratio suggests a shift toward catabolism, negatively impacting the performance signature. Optimization involves aligning lifestyle factors to push the signature toward an anabolic and resilient state.
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