目的探讨血氨(bloodammonia，BA)作为部队军事体能训练监控指标的可行性。方法90名武警某部战士随机分为3组，分别进行100m跑、400m障碍和蛙跳训练。测定各组训练前后BA、血乳酸(bloodlacticacid，Bla)、肌酸激酶(creatinekinase，CK)和血浆游离DNA(cell-freeplasmaDNA，cf-DNA)的变化，分析BA与其他各指标的相关关系并计算Pearson相关系数。结果三组各指标基础值(训练前水平)均无统计学差异(P>0.05)。与训练前比较，100m组BA、CK和cf-DNA均显著升高(均为P<0.01)，而Bla无统计学变化(P>0.05);400m障碍组和蛙跳组所有指标均显著升高(均为P<0.01)。相关分析显示，100m组BA与CK、cf-DNA均呈显著正相关(分别为P<0.05和P<0.01)，而与Bla无显著相关性(P>0.05);400m障碍组和蛙跳组BA与Bla、CK、cf-DNA均呈显著正相关(均为P<0.01)。结论BA可作为士兵无氧训练科目简便易行的监控指标。

Objective To analyse the changes in blood ammonia (BA) of soldiers before and after anaerobic training and the relationship of BA and other biochemical indicators so as to determine the feasibility of BA as the marker of monitoring physical training in soldiers of CAPF. Methods Ninety soldiers of CAPF were randomly selected and divided into three groups and separate training modes of 100m-running, 400m-obstacle race and leapfrog. The changes in BA, blood lactic acid (Bla), serum creatine kinase (CK) and cell-free plasma DNA (cf-DNA) were determined before and after training in each group. Relationship of BA and other biochemical indicators was analysed and Pearson’s correlation coefficient was calculated. Results The baseline (pretraining level) of indexes in each group had no significant difference (P>0.05). Compared with pretraining value, BA, CK and cf-DNA increased (all P<0.01) but Bla had no significant change in 100 m-running group; all indexes rose in both 400m-obstacle group and leapfrog group (all P<0.01). Correlation analysis displayed that BA and CK, cf-DNA had significant positive correlation (P<0.05 and P<0.01 respectively) but no relation with Bla in 100 m-running group (P>0.05); BA and Bla, CK, cf-DNA had significant positive correlation in both 400m-obstacle group and leapfrog group (all P<0.01). Conclusions BA may be a convenient monitoring indicator in anaerobic training for soldiers.