Fit & Active Panel (Men) with Testosterone

The Men's Fit & Active panel adds total testosterone measurement to the Unisex panel, addressing the hormonal dimension of men's athletic performance. Testosterone is the primary anabolic hormone driving muscle protein synthesis, red blood cell production, bone density, and recovery capacity. Overtraining, chronic caloric restriction, and high psychological stress all suppress testosterone — making this marker essential for men who train hard and want to monitor whether their regimen is supporting or undermining their hormonal health. Together with CK, vitamin D, and the full metabolic screen, this panel gives male athletes a near-complete picture of their physiological readiness.

Adding total testosterone to the Fit & Active framework transforms it into a genuine hormonal performance audit for men. Testosterone is produced primarily in the Leydig cells of the testes and is regulated by the hypothalamic-pituitary-gonadal axis. In men who train intensively, testosterone can be acutely elevated by anaerobic exercise but chronically suppressed by the combination of high training volume, insufficient caloric intake, sleep deprivation, and psychological stress — a constellation known as overreaching or non-functional overreaching syndrome. Low testosterone in this context reduces muscle protein synthesis, impairs recovery, reduces haematocrit and aerobic capacity, reduces libido and mood, and increases injury risk through reduced bone density and connective tissue maintenance. Measuring total testosterone in the morning (when levels are at their diurnal peak) alongside CK — which captures acute muscle damage — creates a paired picture of whether a man is absorbing his training load productively (CK in range, testosterone maintained) or overreaching (CK chronically elevated, testosterone suppressed). The complete biomarker list for this panel: total testosterone, CBC, Na/K/Cl/Mg/Ca, fasting glucose, total cholesterol, LDL, HDL, triglycerides, ALT, AST, GGT, ALP, bilirubin, urea, creatinine, CRP, CK, uric acid, total protein, vitamin B12, iron, 25-OH vitamin D, and urinalysis with sediment. The sample is collected as a fasting morning blood draw with a morning urine sample. Testosterone should be collected before 10:00 am to capture the peak of the diurnal variation. Results arrive by secure email the next business day from IFCOR's accredited Jihlava laboratory.