Abstract: Objective: To investigate the effects of 4-week hypoxia training on index related to endurance capacity and lymphocyte sub-jects of male football players. Methods: Football players from a sport university were evenly divided into 4 groups:training group, hypoxic group, hypoxia training group and control group. The control group completed a 4-week cycling training with the intensity of 65%~75% VO₂max, while the hypoxia training group did the same training in hypoxia environment (14.7% oxygen concentration);Low oxygen groups for 4 weeks daily 60 min, 5 times a week in a low oxygen (14.7% oxygen concentration) environment, did not cycle training;the control group without any intervention. Results: In hypoxia training group, the red blood cell count and hemoglobin were significantly higher than those of the control group, training group and hypoxia group(P < 0.05);there was significant difference in VO₂max and the performance of 3 000 m running between hypoxia training group and other groups(P < 0.05); the number of CD3⁺ level in hypoxia training group was significantly higher than that of the control group and hypoxia group (P < 0.05). Conclusion: Compared to other methods environment, a hypoxia training program of 60 min/d, 5 d/w, 4 weeks in total contributed to improve the endurance capacity of male football players, and it's also probably beneficial for improvement of immunity.

Key words: hypoxia training, aerobic endurance, lymphocyte subsets, football player