GLOSSARY

Metabolic Dysfunction is impaired regulation or material processing.

Metabolic stress involves a challenge to demand and regulatory capacity and does not necessarily mean injury or disease. An appropriate training stimulus may support adaptation, whereas excessive loading with insufficient food and recovery can have a different outcome. Fatigue alone does not diagnose metabolic dysfunction; symptom duration, performance trends and clinical context determine whether specialist assessment is needed. A pathway label cannot establish the cause on its own.

Efficiency relates useful output to input; capacity describes potential under test conditions, distinct from actual rate. Phenotype and profile concern measured characteristics. Specify method, rest or exercise and meal timing. One test or fatigue sensation does not diagnose broken metabolism. Interpret results with performance, diet and relevant clinical context rather than assigning a universal optimal value or inferring that higher capacity means higher energy expenditure at every moment.

Cellular sensors receive information about energy, nutrients and mechanical loading, and signaling networks coordinate responses. These signals are not all hormones, and activation of one marker does not guarantee greater muscle growth or performance. Practical interpretation requires the signal's magnitude and duration, target tissue, actual nutrient supply and measured outcomes during training and recovery to be considered together rather than treating one molecular response as the final result.