Metodología para incrementar la velocidad de reacción durante la defensa personal en cadetes

La preparación física, como parte del entrenamiento de los cadetes, busca poner en óptimo estado al practicante, perfecciona sus aptitudes naturales y desarrolla al máximo sus capacidades físicas por medio de ejercicios sistemáticos. En ese sentido, la velocidad de reacción durante la defensa personal constituye un importante aspecto a tratar; sin embargo, la observación y análisis de la realidad educativa en el Instituto de Enseñanza Superior del Ministerio del Interior, en Santiago de Cuba, reveló insuficiencias que limitan el logro de altos niveles en la velocidad de reacción. El objetivo del estudio consistió en elaborar una metodología para el desarrollo de la velocidad de reacción durante la defensa personal, en los cadetes de la carrera Ciencias de la Seguridad del Estado del Ministerio del Interior. En esa línea de pensamiento, se realizó una investigación con enfoque mixto y diseño cuasi experimental que empleó como métodos empíricos la revisión documental, la observación científica y la entrevista no estructurada; se utilizó la estadística inferencial por medio de la prueba de rangos de Wilcoxon para muestras relacionadas, lo que permitió conocer la eficiencia de los ejercicios especiales que se aplicaron. La calidad de la metodología quedó corroborada por los resultados obtenidos en la aplicación del criterio de expertos en la variante "Delphi" y del prexperimento, confirmados por diferentes técnicas estadísticas que resaltan la funcionalidad, sostenibilidad, pertinencia y factibilidad de la propuesta.

A preparação física, como parte do treinamento dos cadetes, busca colocar o praticante em ótimas condições, aperfeiçoar suas aptidões naturais e desenvolver ao máximo suas capacidades físicas por meio de exercícios sistemáticos. Nesse sentido, a velocidade de reação durante a defesa pessoal é um aspecto importante a ser abordado; no entanto, a observação e a análise da realidade educacional no Instituto de Ensino Superior do Ministério do Interior, em Santiago de Cuba, revelaram insuficiências que limitam a obtenção de altos níveis de velocidade de reação. O objetivo do estudo foi elaborar uma metodologia para o desenvolvimento da velocidade de reação durante a autodefesa, em cadetes do curso de Ciências de Segurança do Estado do Ministério do Interior. Nessa linha de pensamento, foi realizada uma pesquisa com abordagem mista e desenho quase experimental, utilizando como métodos empíricos a revisão documental, a observação científica e a entrevista não estruturada; foi utilizada a estatística inferencial por meio do teste de postos de Wilcoxon para amostras relacionadas, o que permitiu conhecer a eficiência dos exercícios especiais aplicados. A qualidade da metodologia foi corroborada pelos resultados obtidos na aplicação de critérios de especialistas na variante "Delphi" e no pré-experimento, confirmados por diferentes técnicas estatísticas que destacam a funcionalidade, a sustentabilidade, a relevância e a viabilidade da proposta.

Physical preparation, as part of training of the cadets, seeks to put the practitioner in optimal condition, perfects their natural aptitudes and develops their physical capabilities to the maximum through systematic exercises. In this sense, the speed of reaction during self-defense is an important aspect to address; however, the observation and analysis of the educational reality at the Institute of Higher Education of the Ministry of the Interior, in Santiago de Cuba, revealed insufficiencies that limit the achievement of high levels in reaction speed. The objective of the study was to develop a methodology for the development of reaction speed during self-defense, in the cadets of the State Security Sciences career of the Ministry of the Interior. In this line of thought, research was carried out with a mixed approach and quasi-experimental design that used documentary review, scientific observation and unstructured interviews as empirical methods; inferential statistics was used through the Wilcoxon rank test for related samples, which made it possible to know the efficiency of the special exercises that were applied. The quality of the methodology was corroborated by the results obtained in the application of expert criteria in the "Delphi" variant and of the pre-experiment, confirmed by different statistical techniques that highlight the functionality, sustainability, relevance and feasibility of the proposal.

Effect of Advanced Strengthening Program on Physical Fitness Test Performance in Injury Prone Pre-Military Trainee Cadets.

The pre military trainee cadets are mostly unaware about proper training techniques and because of their lack of knowledge they are prone to have musculoskeletal problems especially their shoulder, spine, and knee joint are more prone to any injury. So, in order to avoid injuries, effort was made to make them aware about the risk of getting injured and proper fitness techniques which will prevent their injuries as well as help them to improve fitness level and field performance also. We wanted to evaluate the effect of advance strengthening program on physical fitness test performance in pre-military trainee cadets.METHODSIn this comparative study, injury prone trainee cadets were randomly allocated in to two groups of 25 each with advanced training program. Group one did conventional type of routine exercise; group two followed advanced training protocol. Physical fitness test performance was assessed and compared between the two groups. Outcome measures were Burpees test, shoulder press, chin-ups, planks, leg press, 1600 meters running.RESULTSIn Burpees test, 37% improvement was seen by conventional exercise program; whereas, it was 63% for advanced strengthening exercise program. In shoulder press, 38% improvement was seen for conventional exercise program; whereas, it was 62% for advanced strengthening exercise program. In chin ups, 34% improvement was seen for conventional exercise program; whereas, it was 66% for advanced strengthening exercise program. In planks, 45% improvement was seen with conventional exercise program; whereas, it was 55% for advanced strengthening exercise program. In leg press, 39% improvement was seen with conventional exercise program; whereas, it was 61% with advanced strengthening exercise program. In 1600 meters running, 37% improvement was seen with conventional exercise program; whereas, it was 63% by advanced strengthening exercise program. P value was <0.0001 which is significant.CONCLUSIONSA significant improvement was found in muscle performance, and occurrence of injury was seen to be reduced with advanced training program in injury prone trainee cadets.

Association of sex-related differences in body composition to change of direction speed in police officers while carrying load / Asociación de diferencias relacionadas con el sexo en la composición corporal para cambiar la velocidad de dirección de oficiales de policía durante el transporte de carga

Regardless of sex or body size, police tasks may require officers to change direction speed (CODS) under occupational loads. The purpose of this study was to investigate body composition and CODS in female and male police cadets in both unloaded and occupationally loaded conditions. Body composition and CODS of 51 female (FPC) and 70 male police cadets (MPC) were assessed. Six body composition indices were used: Body mass index (BMI), percent body fat (PBF), percent of skeletal muscle mass (PSMM), protein fat index (PFI), index of hypokinesia (IH), and skeletal muscle mass index (SMMI). The CODS was assessed by Illinois Agility Test (IAT) and IAT while carrying a 10-kg load (LIAT). An independent sample t-test was used to identify the differences between the sexes. The regression determined associations between body composition and LIAT. The alpha level was set at p < 0.05 a priori. MPC had significantly higher (p < 0.001) BMI, PSMM, PFI and SMMI and lower PBF and IH than FPC. MPC were also faster in IAT and LIAT, carrying lower relative loads that imparted less of an impact on CODS performance. Body composition was strongly associated with the time to complete LIAT (R2 = 0.671, p < 0.001). Difference in relative load and body composition influenced CODS performance in both unloaded and loaded conditions. Thus, optimizing body composition through increasing skeletal muscle mass and reducing fat mass could positively influence unloaded and loaded CODS performance and improve elements of police task performance.

El trabajo policial puede requerir que los oficiales cambien la velocidad de dirección (CVD) bajo cargas ocupacionales, indistintamente del sexo o tamaño corporal. El propósito de este estudio fue investigar la composición corporal y los CVD en cadetes de policía de ambos sexos, tanto en condiciones de descarga como de trabajo. Se evaluaron la composición corporal y los CVD de 51 mujeres (CPF) y 70 cadetes de policía masculinos (CPM). Se utilizaron seis índices de composición corporal: índice de masa corporal (IMC), porcentaje de grasa corporal (PGC), porcentaje de masa muscular esquelética (PMME), índice de grasa proteica (IGP), índice de hipocinesia (IH) e índice de masa muscular esquelética (IMME). El CVD fue evaluado por Illinois Agility Test (IAT) y IAT mientras transportaba una carga de 10 kg (LIAT). Se usó una prueba t de muestra independiente para identificar las diferencias entre los sexos. La regresión determinó asociaciones entre la composición corporal y LIAT. El nivel alfa se estableció en p <0,05 a priori. CPM registraron un IMC, PMME, PGC y IMME significativamente más altos (p <0,001) y PGC e IH más bajos que las mujeres (CPF). Los CPM también fueron más rápidos en IAT y LIAT, llevando cargas más bajas, las que tuvieron un impacto menor en el rendimiento de CVD. La composición corporal estaba asociada con el tiempo para completar LIAT (R2 = 0,671, p <0,001). La diferencia en la carga relativa y la composición corporal influyeron en el rendimiento de CVD tanto en condiciones descargadas como cargadas. Por lo tanto, la optimización de la composición corporal a través del aumento de la masa del músculo esquelético, y la reducción de la masa grasa podrían influir de manera positiva en el rendimiento de CVD descargados y cargados, mejorando el rendimiento del trabajo policial.

Study on contrast visual acuity and the influence factors of eyes care habits in Air Force pilot cadets at the Aviation University / 国际眼科杂志(Guoji Yanke Zazhi)

@#AIM: To examine and investigate the contrast visual acuity and eyes care habits in Air Force pilot cadets, and analyze the change of contrast visual acuity and the related influencing factors.<p>METHODS: The contrast visual acuity of the students in Grade One and Grade Two at an aviation university was recorded and analyzed, and the visual habits were recorded and analyzed by questionnaire.<p>RESULTS: A total of 117 students in Grade One and 210 students in Grade Two were enrolled. The contrast visual acuity of both eyes over 1.0 were 83 students(70.9%)in Grade One and 174 students(82.9%)in Grade Two respectively(<i>P</i><0.05). Questionnaire survey on the eye care habits by students, showing the second grade students of daily reading time, outdoor sports, sports category, use at night time, with a focus on electronic product knowledge and the degree of attention and when flying cadets were significantly different(<i>P</i><0.05). There were 87.2% students of Grade One and 93.3% students of Grade Two taking less than or equal to 6h to get daily reading and learning time, 34.2% students of Grade One and 13.8% students of Grade Two taking outdoor sports less than or equal to 2h, 57.3% students of Grade One and 90.0% students of Grade Two taking more than One category of exercise,38.5% students of Grade One and 43.3% students of Grade Two using electronic production less than or equal to 2h, 85.5% students of Grade One and 75.7% students of Grade Two using electronic production at night, and 61.5% students of Grade One and 81.0% students of Grade Two paying high attention to the use of scientific knowledge(<i>P</i><0.05). <p>CONCLUSION: The contrast visual acuity of Air Force pilot cadets keeps improving at theoretical study stage, mainly including the following reasons such as the decreasing of reading time, the increasing of outdoor sports, the improving of exercise methods, the reduce using of electronic production and the enhancing of eyes-using knowledge.

Impulsividad y agresividad en cadetes de policía / Impulsiveness and Aggressiveness in Police Cadets

Resumen El objetivo principal fue indagar los niveles de agresividad e impulsividad en Cadetes de Policía de San Luis, Argentina. La muestra fue intencional, no probabilística, conformada por 58 alumnos (39 varones y 19 mujeres) que cursan el segundo y tercer año de un instituto de formación. Fueron administrados dos instrumentos: Cuestionario de Agresividad (AQ) (Andreu-Rodríguez, Peña-Fernández & Graña-Gómez, 2002) y la Escala de Impulsividad de Barratt (BIS-11) (Oquendo et al., 2001). Las principales conclusiones evidencian niveles elevados de agresión física e impulsividad cognitiva. Las mujeres mostraron puntuaciones elevadas en la subescala hostilidad, mientras que los hombres mayores niveles de agresión física; los alumnos del último año de formación exhibieron niveles elevados de impulsividad motora, agresión verbal e ira. Finalmente, se corroboraron asociaciones positivas entre las variables de impulsividad y agresividad.

Abstract The main objective was to inquire the levels of aggressiveness and impulsivity in Police Cadets of the San Luis, Argentina. The sample was intentional, not probabilistic, and consisted of 58 students (39 males and 19 females) attending the second and third year of a training institute. Two instruments were administered: The Aggressiveness Questionnaire (AQ) (Andreu-Rodríguez, Peña-Fernández & Graña-Gómez, 2002) and the Barratt Impulsivity Scale (BIS-11) (Oquendo et al., 2001). The main conclusions make refer to high levels of Physical Aggression and Cognitive Impulsiveness. Women showed high scores on the Hostility sub-scale, while men had higher levels of Physical Aggression; the students of the last year of training exhibited elevated levels of Motor Impulsiveness, Verbal Aggression and Wrath. Finally, positive associations between the variables of Impulsivity and Aggressiveness to were corroborated.

A comparative study of nephroptosis in the second and final stage of medical selection of flying cadets / 军事医学

Objective To compare the physical examination results of nephroptosis in the second stage and the final stage, to find the underlying reasons, and to explore better ways to detect nephroptosis.Methods A total of 1334 subjects participated in both the second stage and final stage of PLA air force medical selection of flying cadets, and physical examination results of both stages were compared.Results All the subjects recruited denied a history of abdominal pain or recurrent urinary tract infection, and urine tests were normal.The positive rate of nephroptosis in the second stage was 10.2%, compared to 5.5% in the final stage.The difference of physical examination results in the two stages was significant, and so was that of disqualification rates.Conclusion Results of physical examination of nephroptosis in the second stage are different from those in the final stage.It′s necessary to find better ways of detection of nephroptosis.

Improvement of nasal examination procedures for primary medical selection in Air Force pilots / 军事医学

Objective To optimize the nasal examination procedures for preliminary medical selection of pilot cadets,to reduce the use of medicine for nasal congestion,to simplify the workflow and to improve the efficiency.Methods In the course of recruiting pilots,all the 306 candidates in seven districts of a province were selected and randomly divided into the exercise-first group (n =166) and the spraying-first group (n =140).In the exercise-first group,the nasal cavity of the students was observed under the anterior rhinoscope at three time points:before exercise/spraying,after simple exercise,and after exercise/spraying(exercise first).In the second group,the nasal cavity was observed under the anterior rhinoscope at three time points:before exercise/spraying,after simple spraying,and after exercise/spraying(spraying first).Conclusions were drawn after nasal examination,and the percentage of clear conclusions in each group was statistically analyzed.Results In the case of simple exercise or simple nasal spraying,clear conclusions could be drawn about most of the candidates.There was no significant difference between the simple nasal spraying group and simple exercise group in the rate of clear conclusions.Conclusion During the preliminary recruitment of pilot students,the exercise method can be used to shrink the nasal cavity.For a few candidates whose conclusions cannot be drawn after exercise,nasal spray can be added to reduce congestion improve efficiency,and reduce the use of nasal congestion,thus reducing the indireet damage to candidates.During the re-check and final check,the nasal spray agent can be used to reduce the congestion and at the same time fast squatting 50 times in two minutes can be used as a the nasal cavity contraction method.

An empirical study on medical selection of flying cadets with urinary system diseases between PLAAF and USAF / 军事医学

Objective To investigate the effect of different medical standards for the urinary system on the enlistment of pilots between PLAAF and USAF , and offer support to amendment .Methods Data on pilots′final enlistment between 2012 and 2015 were analyzed , and results of physical examinations of the urinary system were compared according to differ -ent medical standards .Results One hundred and twenty teenagers enrolled in this examination were disqualifiied due to defects of the urinary system while 97 applicants were qualified after comprehensive assessment of the urinary system .The main problems with the urinary system that affected results of pilots′enlistment were nephroptosia , renal cyst , microscopic hematuria , renal calcified foci and calculus .Conclusion Medical standards for the urinary system are different between PLAAF and USAF, especially those for nephroptosia , renal cyst and microscopic hematuria .The medical standards directo-ry about the urinary system approved by USAF can serve as a reference during our revision of current medical enlistment standards.

An empirical study on medical selection of flying cadets with nervous and mental system diseases between PLAAF and USAF / 军事医学

Objective To compare the medical selection standards of flying cadets in the nervous and mental system between Air Force of PLA(PLAAF) and the US Air Force(USAF), and to offer suggestions on revising PLAAF medical standards for flying cadets .Methods All our candidates who had participated in the final medical selection of flying cadets were subjected to neurological examinations , and determined as qualified or not according to USAF Medical Standards Directory.Results 123 people were disqualified during the neurological examination , accounting for 1.1% of the total. According to USAF Medical Standards Directory , 13 of them were disqualified , 24 of them were qualified , and 86 of them needed a second examination .There was marked difference between disqualification rates of PLAAF and USAF .Conclusion There are some differences in medical selection standards for flying cadets in the nervous and mental system between PLAAF and USAF, and we could revise PLAAF standards using USAF standards for reference .

An empirical study on medical selection of flying cadets with hernia disease between PLAAF and USAF / 军事医学

Objective To analyze the disease spectrum of abdominal external hernia during medical selection of flying cadets and compare the medical standards between US Air Force and Chinese PLA Air Force in order to improve the system of medical selection.Methods The data about abdominal external hernia among flying cadets during Chinese PLAAF medical selection between 2012 and 2015 were retrospectively analyzed and compared with the medical standards of the USAF flying cadets.Results Twenty-nine candidates were eliminated because of hernia,including 4 cases of hiatal hernia,3 cases of umbilical hernia and 22 cases of inguinal hernia.4.70% of the candidates were eliminated because of hernia disease.Empirical research showed difference in hernia standards between China and the USA.Conclusion Compared with Chinese medical selection standards,the USAF standards give more weight to whether the symptoms of disease impact air safety and efficiency.Our medical selection standards need to be improved by learning from foreign practices.

An empirical study on medical selection of flying cadets with skin diseases between PLAAF and USAF / 军事医学

Objective To determine whether the candidates who were disqualified due to skin diseases in PLAAF medical selection of flying cadets are qualified or not according to USAF Medical Standards Directory , and to raise suggestions about revising PLAAF medical standards for flying cadets .Methods All the candidates who participated in the final medical selection of flying cadets received skin examination , and were judged to be qualified or not according to USAF Medical Standards Directory.Results Scar,bromhidrosis, chronic eczema, and vitiligo accounted for the largest proportion of skin diseases in PLAAF medical selection of flying cadets .There was a marked difference between disqualification rates of PLAAF and USAF, and the selection outcome of 34.48% of the candidates disqualified for skin disease were unknown according to USAF Medical Standards Directory .Conclusion There are some differences in medical selection standards of flying cadets between PLAAF and USAF , and we can revise PLAAF standards using USAF standards for reference , such as replacing bromhidrosis with ephidrosis , observing the therapeutic effect of chronic eczema , and adding impact evaluation of scar on military equipment .

An empirical study on medical selection of flying cadets with heterophonies between PLAAF and USAF / 军事医学

Objective To determine whether the candidates who were disqualified for having phoria or tropia in People′s Liberation Army Air Force ( PLAAF) medical selection of flying cadets are qualified or not according to United States Air Force ( USAF) Medical Standards Directory , and to raise suggestions on revising PLAAF medical standards . Methods All the candidates who had participated in the final medical selection of flying cadets were reevaluated and determined as qualified or not according to USAF Medical Standards Directory .Results There was a marked difference between disqualification rates of PLAAF and USAF .13.87%of the candidates who were regerded as disqualified by PLAAF standards were qualified according to USAF Medical Standards Directory .These cadets might be eliminated by mistake . Conclusion The standard on heterophonies of the PLAAF is more stringent than that of the USAF .We shoucd revise PLAAF standards using USAF standards for reference .

Sampling comparative analysis on military flying cadets by comprehensive assessment for two years / 军事医学

Objective To analyze the change in qualification rate of comprehensive assessment , and to provide an effective theoretical basis for future selection and recruitment of military flying cadets .Methods Group A consisted of 400 cadets who were randomly chosen from the final selection with the physical examination conclusions of disqualifiedandqualified by comprehensive assessmentin a certain year via the cross-sectional investigation method , and group B was composed of 400 cadets who were chosen from the following year with the same method as group A .A questionnaire con-cerning demographic features was conducted among all cadets .A database was established with Epidata 3.02 software, and SPSS 16.0 software was used to analyze diseases which were qualified by comprehensive assessment.Results The qualification rate of comprehensive assessment in group A was higher than group B (45.00%vs 34.75%, P<0.01),there were differences between the two groups in overweight ( underweight ) ,deflection of nasal septum , gallbladder polyp , spinal malformation and undertall(P<0.05 or P<0.01).Conclusion The expert consensus which is made by the air force ex-perts through their work experience and the foreign air force standards has a positive application effect in the practical work . It is an efficient supplement to the physical examination standards and has an important effect on military aviator selection .

An empirical study on medical selection of flying cadets with anal diseases between PLAAF and USAF / 军事医学

Objective To analyze the spectrum of anus disease during the medical selection of flying cadets and com-pare the medical standard between US Air Force and Chinese Air Force in order to improve the system of medical selection. Methods The data on flying cadets of Chinese Air Force medical selection from 2012 to 2015 were retrospectively analyzed and these data were re-analyzed by medical standards for US Air Force flying cadets.Results Ninety students were elimi-nated because of anal disease,including 65 hemorrhoids,14 fistula and 11 fissure.The rate of disqualification from 2012 to 2015 was 48.28%, 33.33%, 31.37%, 39.69%and there was no significant statistical difference between each two years (x2 =2.6154,P=0.4548).There was statistically significant difference(P=0<0.05)in hemorrhoids standards between CAF and USAF,and significant difference in fistula and fissure standards.Conclusion Compared with Chinese medical se-lection standards,the US Air Force standards focus on whether the symptoms of disease have effect on air safety and effi-ciency.To improve our medical selection standards,we need to learn from foreign air forces and take our own conditions into account.

An empirical study on medical selection of flying cadets with arrhythmia between PLAAF and USAF / 军事医学

Objective To determine whether the candidates who are disqualified because of arrhythmia during medical selection of flying cadets in China are qualified or not according to United States Air Force ( USAF ) Medical Standards Directory( MSD) , in order to raise suggestions on revising PLAAF medical selection of flying cadets.Methods ECG was performed on all candidates who participated in the final stage of medical selection of flying cadets, and they were considered qualified or not according to USAF MSD.Results Arrhythmia accounted for the largest proportion of cardiovascular diseases( CVDs) in PLAAF medical selection of flying cadets,the constituent ratios of CVDs from 2012 to 2015 were significant different (P<0.01).There were differences between the two countries and the outcome of 81.48%of the candidates disqualified for premature systole in PLAAF was unknown according to USAF MSD.Conclusion There are some differences in medical selection standards of flying cadets between PLAAF and USAF, and we could revise PLAAF standards with reference to USAF standards.

An empirical study on medical selection of flying cadets with ear diseases between PLAAF and USAF / 军事医学

Objective To determine whether the candidates who are disqualified because of ear diseases during medical selection of flying cadets in China are qualified or not according to United States Air Force ( USAF ) Medical Standards Directory in order to raise suggestions for revising PLAAF medical standards for flying cadets.Methods Data of final selections from 2013 to 2015 and the conclusions were compared by different standards.Results and Conclusion There was a marked difference (x2 =7.99,P0.05) in the disqualification rate related to ear diseases.Vestibular dysfunction and dysacousis were the leading causes of disqualification among ear diseases, making up 45.54% and 38.84% respectively, with other diseases less than 5%.Medical standards for ear diseases in China are more strict than in the USAF, so we should revise some PLAAF standards according to the USAF standards for reference, such as those for vestibular neuritis, dysacousis and tympanic disease in order to enlarge the source of cadets.

An empirical study on medical selection of flying cadets regarding lumbar spondylol-ysis and scoliosis between PLAAF and USAF / 军事医学

Objective To improve and determine the Medical Standards Directory of the Air Force of People′s Libera-tion Army of China( PLAAF) by analyzing the differences in lumbar spondylolysis and scoliosis between PLAAF and the US Air Force( USAF) .Methods All candidates of flying cadets participating in the final radiographic selection between 2013 and 2015 were chosen.They were judged to be qualified or not according to PLAAF and USAF Medical Standards Directory. Results The average morbility of lumbar spondylolysis and scoliosis in PLAAF was 47%and 30.3%respectively.Arnong those who were eliminated in China,86.0%and 92.5%could be regarded as qualified according to the standard of USAF in 2015.The difference was statistically significant (P<0.01).Conclusion Our selection standards for lumbar spondylol-ysis and scoliosis should be improved based on this study.

Anthropometric parameters of cadets among different military sports / Parámetros antropométricos de cadetes entre los diferentes deportes militares

This study compared anthropometric parameters among different military sports. One hundred and seventy male cadets of the Brazilian Air Force Academy, who were participants of athletics (n= 33, 20.5±1.3 years), basketball (n= 11, 19.9±1.8 years), fencing (n= 10, 19.9±0.7 years), soccer (n= 21, 20.9±1.6 years), judo (n= 17, 20.7±1.0 years), swimming (n= 15, 20.4±1.2 years), orienteering (n= 10, 21.3±1.6 years), military pentathlon (n= 11, 20.7±1.2 years), water polo (n=10, 21.1±0.9 years), shooting (n= 18, 21.3±1.2 years) or volleyball (n= 14, 20.9±1.7 years) military competitive teams, participated in this study. Height, body mass, body mass index, fat percentage, lean body mass, fat mass, waist and hip perimeters, and waist-hip ratio were measured. Main effects were detected for height, body mass, body mass index, lean body mass, waist and hip perimeters. The only significant finding was that orienteers present lower lean body mass than volleyball and water polo players. These results point out the homogeneity of group anthropometric parameters (except lean body mass), suggesting that military coaches do not rely on the anthropometric parameters, but on specific skills demonstrated during initial period of practice to choose athletes for their teams.

Este estudio comparó los parámetros antropométricos entre cadetes que practican diferentes deportes militares. Ciento setenta cadetes hombres de la Academia de la Fuerza Aérea, que eran participantes de equipos militares competitivos de atletismo (n= 33, 20,5±1,3 años), baloncesto (n= 11, 19,9±1,8 años), esgrima (n= 10, 19,9±0,7 años), fútbol (n=21, 20,9±1,6 años), judo (n= 17, 20,7±1,0 años), natación (n= 15, 20,4±1,2 años), orientación (n= 10, 21,3±1,6 años), pentatlón militar (n= 11, 20,7±1,2 años), polo acuático (n= 10, 21,1±0,9 años), tiro (n= 18, 21,3±1,2 años) y voleibol (n= 14, 20,9±1,7 años) participaron en este estudio. Se midió la altura, masa corporal, índice de masa corporal, porcentaje de grasa corporal, masa magra, masa grasa, perímetros de cintura y cadera, y la relación cintura-cadera. No se detectaron variaciones de altura, masa corporal, índice de masa corporal, masa magra corporal, perímetro de cintura y cadera. El único hallazgo significativo fue que los orientadores tenían una masa corporal magra más baja que los jugadores de voléibol y polo acuático. Estos resultados apuntan a la homogeneidad de los parámetros antropométricos en grupos (excepto la masa magra), lo que sugiere que los instructores militares no dependen de los parámetros antropométricos, sino de las habilidades específicas demostradas durante el período de la práctica inicial en la selección de los atletas para sus equipos.

Analysis of qualified military flying cadets by comprehensive assessment / 军事医学

Objective To provide an effective theoretical basis for future selection and recruitment of military flying cadets.Methods Two hundred military qualified flying cadets by comprehensive assessment samples and 200 military flying cadets by medical fitness samples were interviewed with questionnaires and subjected to a physical examination.The comprehensive assessment samples were classified by symptoms and attributive specialties for statistical analysis.A database was established, cleaned and analyzed by EpiData 3.02, SPSS 16.0 with double checking.Results There was no differ-ence between the comprehensive assessment team and the medical fitness team in age, areas, academic scores and psycho-logical performance.The ten top symptoms according to the comprehensive assessment were abnormal chest circumference, abnormal body mass,iris cyst,abnormal hypersplenotrophy,gallbladder polyps,flat foot,skin disease, intrahepatic calcifica-tion focus, joint disease and reproductive system disease.The attributed specialties included surgery, ultrasonics, ophthal-mology,ENT,radiology, ECG and internal medicine departments.The surgery and ultrasonics department contributed the most from the comprehensive assessment and accounted for 55.52%and 16.37%, respectively.Conclusion The compre-hensive assessment for military flying cadets has an important effect on military aviator selection.Continuous observation should be carried out among the military flying cadets by comprehensive assessment in their aviation training.

Developmental characteristics of mental quality in 1771 cadets of military scientific & technical university / 中华行为医学与脑科学杂志

Objective To explore the mental quality developmental characteristics of cadets majored in military science and technology.Methods Mental Quality Questionnaire for army men (MQQA) and Symptom Checklist 90(SCL-90) were employed to evaluate 1771 cadets majored in science and technology,comparing mental quality differences related to gender,age,length of military service,grade and education level,etc.Results ① MQQA scores of cadets for aptitude (68.67±9.45),loyalty(75.98±8.97),bravery (68.46±9.12),self-confidence (65.72±6.61),willpower(67.7±8.33) and total score(345.90±37.79) were significantly higher than those of the army norm and the young army norm(P＜0.01).②There was significant age difference (P＜0.01) in MQQA scores.And the total score gradually increased with age.③There was significant length of military service difference (P＜ 0.01),and the total score decreased at the beginning 3 years and then increased later.④There was significant grade difference (P＜0.01) in MQQA scores.The scores of Grade One were significantly lower than those of Grade Two and Grade Four,but higher than those of Grade Three(P＜0.01) ; the scores of Grade Three were significantly lower than those of Grade Two and Grade Four(P＜0.01).⑤ There was significant education level difference (P＜ 0.01),and the scores of junior college students were significantly higher than those of undergraduates,graduate students and training students (P＜0.01) ; loyalty score of undergraduates was significantly higher than that of graduate students (P＜0.05) ; willpower score of graduate students was significantly lower than that of undergraduates and post-work training students (P＜0.05).Conclusion Cadets majored in science and technology have good mental quality,which is significantly influenced by age,length of military service,grade and level of education.