BACKGROUND Flight cadets need to have good physical fitness to cope with the challenges of flying missions.The continuous development of science and technology has led to the constant upgrading of fighter jets and the...BACKGROUND Flight cadets need to have good physical fitness to cope with the challenges of flying missions.The continuous development of science and technology has led to the constant upgrading of fighter jets and the improvement of their performance,which has resulted in new and higher requirements for the physical fitness of flight personnel.The traditional physical training mode,method,and assessment have been used for many years and do not meet current fitness needs.AIM To investigate the impact of a 12-wk comprehensive anti-G fitness training program on the aerobic capacity of aviation cadets and to evaluate its effectiveness.METHODS Fifty-five cadets were randomly assigned to control and experimental groups using a randomized,single-blind design.The control group maintained their existing training regimen,while the experimental group participated in a 12-wk comprehensive training intervention.The training program comprised strength training twice per week,high-intensity interval training three times per week,and supplemental nutritional and psychological support.Maximal oxygen uptake(VO2max),lower limb strength,and hemoglobin levels were measured at baseline,at 6 wk and 12 wk post-intervention.RESULTS Repeated measures analysis of variance revealed significant differences of both VO2max and relative VO2 in both groups across time points(P<0.05).However,no significant time-group interaction was observed(P>0.05).Paired t-tests comparing baseline and 12-wk results showed that VO2max and relative VO2 were significantly higher in the experimental group than the control group(P<0.05).This suggests that the training program effectively enhanced the aerobic capacity of the experimental group.Key indicators of aerobic capacity,bilateral lower limb strength and hemoglobin levels,were also significantly different over time and between groups(P<0.05).No significant differences were noted in heart-rate metrics(P>0.05).CONCLUSION A 12-wk comprehensive anti-G fitness training program significantly improved the aerobic capacity of aviation cadets,thereby enhancing their overall capacity and laying a physiological foundation for enduring high-G flights.展开更多
Since the 18th National Congress of Chinese Communist Party,the great call for building a maritime power and a power⁃ful military force has set higher standards for Navy’s development and the application of strategie...Since the 18th National Congress of Chinese Communist Party,the great call for building a maritime power and a power⁃ful military force has set higher standards for Navy’s development and the application of strategies.As a maritime military force,the navy bears considerable responsibilities of safeguarding territorial sovereignty,maritime rights and interests with security and development as core mission,and defending the role and image of China as a major county in the world.This paper analyzes and studies naval officers’global competence development from three aspects,and discusses the significance and recommendations of strengthening the development of naval cadets’global competence in cooperation and exchange guided by“Belt and Road”Initia⁃tive(BRI).展开更多
Motivation is one of the critical factors that affect foreign language learning. This study attempts to explore the factors that affect motivation in English learning of non-English major cadets. An investigation is c...Motivation is one of the critical factors that affect foreign language learning. This study attempts to explore the factors that affect motivation in English learning of non-English major cadets. An investigation is conducted in a military academy in southwest China, in which a Likert scale questionnaire is adopted. Through data analysis, eight factors are found to affect cadets' English learning motivation. Moreover, suggestions are provided to shed light on English teaching and learning in military academies.展开更多
针对传统Monte-Carlo方法存在计算量大、耗时过长的缺点,采用协方差分析描述函数技术(the covarianceanalysis describing function technique,CADET)法建立弹目相对运动方程。介绍统计协方差分析描述函数技术的原理,讨论非线性系统的...针对传统Monte-Carlo方法存在计算量大、耗时过长的缺点,采用协方差分析描述函数技术(the covarianceanalysis describing function technique,CADET)法建立弹目相对运动方程。介绍统计协方差分析描述函数技术的原理,讨论非线性系统的准线性化问题,对协方差分析描述函数技术在比例导引制导系统中的应用进行分析,并以实例说明。结果表明:该方法在进行舰空导弹制导性能分析时耗时短、统计性能好、精度高,明显优于传统Monte-Carlo法。展开更多
目的探讨负性情绪对军医大学学员风险决策和抑制控制的影响。方法2023-04~07月,在某军医大学招募124名学员,依据症状自评量表(symptom check list 90,SCL-90)的焦虑维度和抑郁维度得分,将两维度得分均位于前27%的学员纳入低负性情绪组(n...目的探讨负性情绪对军医大学学员风险决策和抑制控制的影响。方法2023-04~07月,在某军医大学招募124名学员,依据症状自评量表(symptom check list 90,SCL-90)的焦虑维度和抑郁维度得分,将两维度得分均位于前27%的学员纳入低负性情绪组(n=22),两维度得分均位于后27%的学员纳入高负性情绪组(n=23)。采用剑桥赌博任务(Cambridge gamble task,CGT)和Stroop色词任务分别评估两组被试的风险决策能力和抑制控制功能。结果在风险决策方面,高负性情绪组的决策质量小于低负性情绪组,决策时间大于低负性情绪组,组间比较差异均有统计学意义(t值分别为3.505、-2.410,P均<0.05);两组的风险调节差异无统计学意义(Z=-1.794,P>0.05)。在抑制控制方面,高负性情绪组的矛盾任务正确率和非矛盾任务正确率均小于低负性情绪组,组间比较差异均有统计学意义(t值分别为2.187、2.093,P均<0.05);两组学员的矛盾任务平均反应时和非矛盾任务平均反应时差异均无统计学意义(t值分别为1.222、1.288,P均>0.05)。结论虽然尚未达到情绪障碍的诊断标准,但是高负性情绪会对军医大学学员的风险决策和抑制控制产生损害。展开更多
基金the Ethics Committee of Beijing Sport University(No.2019113H).
文摘BACKGROUND Flight cadets need to have good physical fitness to cope with the challenges of flying missions.The continuous development of science and technology has led to the constant upgrading of fighter jets and the improvement of their performance,which has resulted in new and higher requirements for the physical fitness of flight personnel.The traditional physical training mode,method,and assessment have been used for many years and do not meet current fitness needs.AIM To investigate the impact of a 12-wk comprehensive anti-G fitness training program on the aerobic capacity of aviation cadets and to evaluate its effectiveness.METHODS Fifty-five cadets were randomly assigned to control and experimental groups using a randomized,single-blind design.The control group maintained their existing training regimen,while the experimental group participated in a 12-wk comprehensive training intervention.The training program comprised strength training twice per week,high-intensity interval training three times per week,and supplemental nutritional and psychological support.Maximal oxygen uptake(VO2max),lower limb strength,and hemoglobin levels were measured at baseline,at 6 wk and 12 wk post-intervention.RESULTS Repeated measures analysis of variance revealed significant differences of both VO2max and relative VO2 in both groups across time points(P<0.05).However,no significant time-group interaction was observed(P>0.05).Paired t-tests comparing baseline and 12-wk results showed that VO2max and relative VO2 were significantly higher in the experimental group than the control group(P<0.05).This suggests that the training program effectively enhanced the aerobic capacity of the experimental group.Key indicators of aerobic capacity,bilateral lower limb strength and hemoglobin levels,were also significantly different over time and between groups(P<0.05).No significant differences were noted in heart-rate metrics(P>0.05).CONCLUSION A 12-wk comprehensive anti-G fitness training program significantly improved the aerobic capacity of aviation cadets,thereby enhancing their overall capacity and laying a physiological foundation for enduring high-G flights.
文摘Since the 18th National Congress of Chinese Communist Party,the great call for building a maritime power and a power⁃ful military force has set higher standards for Navy’s development and the application of strategies.As a maritime military force,the navy bears considerable responsibilities of safeguarding territorial sovereignty,maritime rights and interests with security and development as core mission,and defending the role and image of China as a major county in the world.This paper analyzes and studies naval officers’global competence development from three aspects,and discusses the significance and recommendations of strengthening the development of naval cadets’global competence in cooperation and exchange guided by“Belt and Road”Initia⁃tive(BRI).
文摘Motivation is one of the critical factors that affect foreign language learning. This study attempts to explore the factors that affect motivation in English learning of non-English major cadets. An investigation is conducted in a military academy in southwest China, in which a Likert scale questionnaire is adopted. Through data analysis, eight factors are found to affect cadets' English learning motivation. Moreover, suggestions are provided to shed light on English teaching and learning in military academies.
文摘针对传统Monte-Carlo方法存在计算量大、耗时过长的缺点,采用协方差分析描述函数技术(the covarianceanalysis describing function technique,CADET)法建立弹目相对运动方程。介绍统计协方差分析描述函数技术的原理,讨论非线性系统的准线性化问题,对协方差分析描述函数技术在比例导引制导系统中的应用进行分析,并以实例说明。结果表明:该方法在进行舰空导弹制导性能分析时耗时短、统计性能好、精度高,明显优于传统Monte-Carlo法。
