Subjects were tested for red blood cell (RBC),hemoglobin (HB), and hematocrit (Hct) at sea level, the first week of after altitude training period then the second week, and the end training.

• 受试者分别在海平面时、高地训练第一、、二周和第三周（结束训练）测量红血球、血红素和血比容。