| Objective To design an appropriate method to improve the aerobic endurance quality of the military and enhance the quality of training of military endurance effectively and quickly. This method also reduces the incidence of injuries in military training. The other purpose of this study is to evaluate the effects of endurance capacity disposition on the special arms by intensific cyclic training and polymorphism of ACE gene.Methods The random sample was composed of the 248 new male army recruits of Han Chinese from an infantry regiment without military training history. The total cohort was divided averagely into two groups. Intensified endurance-based training method which was designed according to the"cyclic training method"theory was applied in experimental group and regular training methods mainly including 5,000 meters running for 3 times in a week and no more than 1 time a day,were designated as the control group. The test was carried out for a total of 8 weeks of endurance training. Before the training, the indicators of the quiet pulse, lung capacity, VO2max, 5,000 meters were surveyed, and these indicators were also recorded after the 8 weeks training. As the same time, physical examinations were performed, simultaneously the symptoms of leg swelling,knee pain and swelling and tenderness by low back pain, as well as military training injures were analyzed. The recruits in both groups were divided into 3 groups again based on the ACE gene subtypes as II,ID and DD-tape .Endurance quality were investigated by the performance of 5,000 meters and the maximum oxygen uptake in order to analyze the influence of training method on the quality of soldiers endurance on the different ACE genotypes.Result In the experimental group, the quiet pulse was reduced by 8.0%, while the lung capacity, VO2max and 5,000 meters were respectively elevated by 8.1%, 20.0% and 14.7% (P<0.01), compared with the pre-training, the results of experimental group also showed a statistical significance (P<0.05) compared with those of control group. The incidence of military training injury of the experimental group was 3.3% and that of control group was 8.1%. The incidence of training injury between the two groups were significantly different (P<0.05). Gene polymorphic loci of soldiers were consistent with Hardy-Weinberg equilibrium in two groups. For ACE genotyping in experimental group, II, ID and DD-type accounted for 33.9%, 59.6% and 6.5% respectively. The control group was 46.8%, 50.0% and 3.2% respectively. The performance of soldiers from the ID and DD-type in experimental group was significantly increased compared with that of II type of the control group. The difference was statistically significant (P <0.05). There were no significant differences among different ACE genotypes in the experimental group (P> 0.05). There was no significant difference between II-type and ID-type (P> 0.05) in the control group, while the percentage of DD-type was significantly different from that of II type and ID type (P <0.05). For the experimental group, VO2max and 5000m running performance after training were significantly increased by 20.0% and 12.6% compared with before training(P <0. 01).Importantly it is significantly higher than the control group. The difference was statistically significant (P <0.05).Conclusion (1) Intensified endurance-based training method which was designed from the"cyclic training method"theory can effectively improve the quality of military stamina and reduce the incidence of military training injuries.(2) Under the same training conditions, Intensified endurance-based training method which was designed from the"cyclic training method"theory can effectively improve the level of endurance capacity disposition; the different ACE gene polymorphism can not be used as the accurate indicator to evaluate endurance capacity disposition and improvement efficiency of soldiers. |
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