军人不同体力付出后短时间内注意网络测试的研究

摘要

目的 探讨军人在不同体力付出后短时间内的注意功能变化情况. 方法 将200名军人依据数字表法随机分为静息组、小体力付出组、中等体力付出组和大体力付出组,共4 组,每组50 名. 采用注意网络测试( attention network test , ANT)在不同体力付出后即刻对各组军人进行测试,比较其注意功能的变化. 结果 静息状态下,军人与普通成人比较在警觉作用、定向功能上差异无统计学意义(P>0.05),在执行控制功能上差异有统计学意义(P<0.01). 在不同体力付出情况下,军人各组间警觉作用、定向作用和执行控制方面差异有统计学意义(P<0.01). 其中,小体力付出组在警觉作用、定向作用和执行控制方面明显优于其余3组,差异均有统计学意义(P<0.05). 在静息组,注意网络3个因素无明显相关性(P>0畅05);在小体力付出组、中等体力付出组和大体力付出组注意网络3个因素之间存在显著相关性( P<0.05). 结论 不同体力付出后军人的注意功能变化差异显著,小体力付出对注意功能存在促进作用,随着体力付出的增加,注意功能下降.%Objective To explore changes in the visual function of military personnel after a short time of physical strain with different loads.Methods Two hundred military personnel were randomly divided into 4 groups, i.e.the rest group, the low physical strain group, the moderate physical strain group and the heavy physical strain group , each consisting of 50 people.Tests were performed in the 4 groups of military personnel after a short time of physical strain with different loads .Then, comparisons were made in the chan-ges of network visual attention between the groups by using network visual attention test ( Network Visual Attention Test , NVAT ) . Results No significant differences could be seen in the alert and orientation of military personnel at rest , as compared with that of ordi-nary adults (P>0.05), however, statistical significance could be noted in the execution of control functions , when comparisons were made between the 2 groups (P<0.01).Statistical significance could be noted in alert , orientation and execution of control functions for the 4 groups with different physical loads (P<0.01).The levels of alert, orientation and execution of control functions for the low physical strain group were obviously superior to those of the other 3 groups, and statistical significance could be noted , when compari-sons were made between them (P<0.05).For the rest group, there was no significant association in the 3 factors of network visual at-tention(P>0.05).However, for the low physical strain, moderate physical strain and heavy physical strain groups , there was signifi-cant association in the 3 factors of network visual attention (P>0.05).Conclusion There were significant differences in the changes of network visual attention in military personnel after a short time of different physical loads .Low physical strain had a certain enhancing effort on network visual attention .However, visual attention could be decreased with increasing physical strain .