Twenty biochemical components of serum were compared between normal healthy subjects and professionalwrestlers undergoing maximum training daily. Significant difference was found for 13 blood components : creatinine, uric acid, calcium, inorganic phosphorus, LDH, GOT, GPT, γ-GTP, alkaline phosphatase, direct bilirubin, cholesterol, triglyceride and glucose.
Except for direct bilirubin, 12 parameters in wrestlers were higher than in healthy subjects. The higher concentrations of LDH, calcium, inorganic phosphorus, alkaline phos-phatase and creatinine were considered to be related to heavier physical exercise and special diet. The higher concentrations of alkaline phosphatase, calcium and inorganic phosphorus were thought to be mainly related to bone metabolism.