目的 观察长时间大负荷军事训练对武警战士淋巴细胞亚群的影响，为科学合理地制定训练计划提供依据。方法 23名武警战士参加为期3 d的军事训练，分别测定训练前（第1天晨）、中（第2天晨）、后（第4天晨）淋巴细胞亚群、血浆睾酮、皮质醇的变化并统计上呼吸道感染发病率。结果 与训练前比较，训练中CD3+T显著升高（P0.05），上呼吸道感染发病率为17.4%；训练后CD3+T（P<0.01）、CD4+T（P<0.01）、CD8+T（P<0.01）、CD4+/CD8+比值（P<0.05）、CD16+T（P<0.01）和血浆睾酮（P<0.01）显著降低，血浆皮质醇显著升高（P<0.01），上呼吸道感染发病率为65.2%。结论 第1天训练负荷较为合理，连续3 d训练后，机体出现明显的免疫抑制，其机制之一可能与运动性低血睾酮与高皮质醇血症有关，应科学合理制定训练计划。
Abstract
Objective To observe the effect of prolonged high load military training on lymphocyte subsets in soldiers of Chinese Armed Police Forces and to provide data for scientific training protocols. Methods Twenty-three soldiers participated in three-day military training, whose lymphocyte subsets, plasma testosterone, cortisol and upper respiratory tract infection symptoms were determined before training (the first morning), during training (the second morning) and after training (the fourth morning) respectively. Results Compared with pre-training, CD3+T increased significantly (P0.05). The incidence of upper respiratory tract infection was 17.4% during training. CD3+T (P<0.01), CD4+T (P<0.01), CD8+T (P<0.01), CD4+/CD8+ ratio (P<0.05), CD16+T (P<0.01) and plasma testosterone (P<0.01) decreased significantly while plasma cortisol rose notably (P<0.01) and the incidence of upper respiratory tract infection was 65.2% after training. Conclusions The training load on the first day was adequate and apparent immunosuppression appeared after three-day training, which is related to exercise-induced low blood testosterone and high cortisol.
关键词
军事训练 /
免疫功能 /
淋巴细胞亚群 /
睾酮 /
皮质醇
Key words
military training /
immune function /
lymphocyte subsets /
testosterone /
cortisol
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基金
武警总部重点课题（WKH2008Z02）;武警后勤学院博士启动金课题（WYB201106）
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