Thyroid
10 markers in this category
Free T3 (Triiodothyronine)
Free T3 is considered the most active thyroid hormone and may be important for athletic performance, metabolic efficiency, and recovery. Some sports medicine providers suggest that optimal T3 levels can support training adaptations and energy availability.
Free T4 (Thyroxine)
Free T4 is the main thyroid hormone and may be essential for athletic performance, metabolic efficiency, and training recovery. Some sports medicine providers note that adequate T4 levels can support sustained energy output during prolonged physical activity.
Reverse T3
Reverse T3 is an inactive thyroid hormone that may increase during overtraining, underfuelling, or physical stress. For athletes, elevated levels might indicate the body is conserving energy by reducing active thyroid hormone availability.
TPO Antibodies
TPO antibodies indicate potential autoimmune thyroid activity. For athletes, undetected thyroid autoimmunity may subtly affect training capacity, recovery, and metabolic efficiency. Including TPO testing in your health monitoring can support optimal performance readiness.
TSH (Thyroid Stimulating Hormone)
TSH is the primary regulator of thyroid function. For athletes, optimal thyroid function is essential for metabolic efficiency, energy production, and recovery. Monitoring TSH may help identify thyroid imbalances that could be limiting your performance potential.
TSH Receptor Antibodies
TRAb antibodies may indicate Graves' disease, which can cause hyperthyroidism. For athletes, an uncontrolled overactive thyroid can significantly impact heart rate, recovery, and body composition. TRAb testing may help identify the cause of unexplained performance changes.
TSI (Thyroid Stimulating Immunoglobulin)
TSI antibodies may indicate Graves' disease, which can lead to hyperthyroidism. For athletes, an overactive thyroid may affect metabolism, heart rate, and recovery. Understanding your TSI status can be part of a comprehensive approach to performance health.
Thyroglobulin
Thyroglobulin is a thyroid protein that may provide insight into thyroid gland function for athletes. Some sports medicine providers note that thyroid health can influence metabolic rate, energy availability, and the body's response to training demands.
Thyroglobulin Antibodies
Thyroglobulin Antibodies are immune markers that may indicate autoimmune thyroid activity. For athletes, undetected thyroid autoimmunity might subtly affect metabolic efficiency, recovery, and training adaptations over time.
Total T3 (Triiodothyronine)
Total T3 measures triiodothyronine, the most metabolically active thyroid hormone. For athletes, T3 may influence metabolic rate, energy availability, and recovery capacity. Monitoring T3 can help you and your healthcare provider optimise your training readiness.