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Table 1 Biochemical inclusion criteria for the EROS study

From: Enhancement of hypothalamic-pituitary activity in male athletes: evidence of a novel hormonal mechanism of physical conditioning

  Range required for inclusion Assay method
Ultrasensitive C-reactive protein (CRP) <3 mg/dL Latex-intensified immunoturbidimetry
Erythrocyte sedimentation rate (ESR) <25 mm/h Automated spontaneous sedimentation method
Creatinine (and TFG) <1.5 mg/dL (> 60 mL/min) Jaffe enzymatic assay
Hematocrit 36–54% Automated assay
Neutrophils 1000–9000 /mm3 Automated assay
Creatine kinase (CK) < 5000 U/L Calorimetric activity assay; International Federation of Clinical Chemistry
Alanine aminotransferase (ALT) <50 U/L Calorimetric activity assays
Aspartate aminotransferase (AST) <50 U/L Calorimetric activity assays
Ferritin 20–1000 ng/dL Chemiluminescence assay
Vitamin B12 >180 pg/mL Chemiluminescence assay
Fasting glucose <100 mg/dL Enzymatic assay of hexokinase
Total testosterone >200 ng/dL Chemiluminescence assay
TSH <5 μIU/mL Chemiluminescence assay
  1. TGF Calculated estimated glomerular filtration rate, TSH Thyroid stimulating hormone