聋哑人体质测试指标的效标关联效度研究     

程明吉  楼方芳  李文广 《内江师范学院学报》2010,25(10):100-103

以2005年《国民体质测定标准》（成年人）的体质监测指标体系为基础,运用数理统计法,采用随机抽样的方式对聋哑人体质测试指标进行效标关联效度研究.研究主要包括聋哑人体质测试使用成人指标体系的可操作性实验、聋哑人体质测试指标的效标关联效度研究、小样本的预测试和大样本全面测试的实效性验证三个方面,旨在构建适合聋哑人的体质测试指标体系,为聋哑人体质测试指标体系的建立、试点和全面推广提供帮助.  相似文献   

苏州市健身俱乐部会员群体健身活动现状调查   总被引：2，自引：0，他引：2  

钟华  朱鸿熙  赵晴晴  刘鑫 《内江师范学院学报》2010,25(12):98-100

健身俱乐部进入中国以来,为人们提供了新的健身方式,且在全民健身的开展中发挥重要作用.本研究通过对苏州市健身俱乐部40名会员健身活动现状进行了深入的调查,并针对其基本情况、健身动机、健身的频率、时长及负荷、准备活动及整理活动等方面进行分析,得出结论与建议,为进一步规范苏州市健身俱乐部市场、提升苏州居民的健身水平提供参考.  相似文献   

Resistance characteristics of innovative eco-fitness equipment: a water buoyancy muscular machine     

Wei-Han Chen  Ya-Chen Liu  Hsing-Hao Tai 《Sports biomechanics / International Society of Biomechanics in Sports》2018,17(1):98-116

This paper propose innovative eco-fitness equipment—a water buoyancy muscular machine (WBM machine) in which resistance is generated by buoyancy and fluid resistance. The resistance characteristics during resistance adjustment and under isometric, concentric, eccentric and isokinetic conditions were investigated and compared to a conventional machine with metal weight plates. The results indicated that the isometric, concentric and eccentric resistances could be adjusted by varying the water volume; the maximum resistances under isometric, concentric and eccentric conditions were 163.8, 338.5 and 140.9 N, respectively. The isometric resistances at different positions remained constant in both machines; however the isometric resistance was lower for WBM machine when at a position corresponding to a 5% total displacement. The WBM machine has lower resistance under eccentric conditions and higher resistance under concentric conditions. Although the conventional machine has an identical trend, the variation was minor (within 4 N). In the WBM machine, the eccentric resistance was approximately 30–45% of the concentric resistance. Concentric resistances increased with an increase in velocity in both machines; however, the eccentric resistances decreased with an increase in velocity. In summary, the WBM machine, a piece of innovative eco-fitness equipment, has unique resistance characteristics and expansibility.  相似文献   

The effects of service convenience and perceived quality on perceived value,satisfaction and loyalty in low-cost fitness centers     

Jerónimo García-Fernández  Pablo Gálvez-Ruíz  Jesús Fernández-Gavira  Luisa Vélez-Colón  Brenda Pitts  Ainara Bernal-García 《Sport Management Review》2018,21(3):250-262

Due to its importance in fitness centers, a number of authors have explored and analyzed loyalty. However, two characteristics not yet examined are service convenience in fitness center chains and low-cost fitness centers (an emerging business model). In the present study, the authors sought to understand the relationship among perceived quality and service convenience on perceived value, satisfaction, and client loyalty in low-cost fitness centers. Clients (N = 763; 381 women and 382 men) from three low-cost Spanish fitness centers were surveyed, revealing a positive relationship among the variables studied. Findings demonstrate the importance of proper management of non-monetary sacrifices and perceived quality by the managers of these sport organizations, since client loyalty could depend on factors of these emerging sport models.  相似文献   

试论军中开展球类运动对军人体能素质的影响研究     

柯强 《军事体育进修学院学报》2010,29(4):74-76

以2006年版《军人体能标准》为主要理论参考依据,以广州某部为实验对象,研究球类项目对军人体能的影响。通过对比实验表明,球类运动能增强军人的力量、速度、耐力、灵敏等体能素质,同时增强了军人体能训练的趣味性,促进军人体能达标等,应在军队体能训练中推广球类运动。  相似文献   

基于遗传算法的自动组卷系统设计     

李玲 《人天科学研究》2013,(4):52-54

自动组卷系统是计算机辅助教学的重要组成部分,而遗传算法以其全局寻优和智能搜索的特性,得到了广泛的运用。根据自动组卷系统的特点,将遗传算法合理应用于自动组卷中,在遗传算法中,设计了双种群机制,并以试卷难度、试卷区分度、试卷的估计用时、知识点分布为基础构造适应度函数,通过轮盘赌选择方法、多点交叉和变异,较好地解决了自动组卷的多重目标寻优问题。  相似文献   

Physical fitness of primary school children in relation to overweight prevalence and physical activity habits     

Rossella Sacchetti  Andrea Ceciliani  Andrea Garulli  Andrea Masotti  Giuseppe Poletti  Patrizia Beltrami 《Journal of sports sciences》2013,31(7):633-640

Abstract

A cross-sectional study was carried out to analyse, through a limited number of fitness tests, the main conditioning and coordinative abilities in children aged 8–9 years, and their relationship with gender, anthropometric variables and physical activity habits. The height and weight of 256 boys and 241 girls were measured and information about physical activity habits was collected using a self-administered questionnaire. Physical performance was assessed by means of a few standardised tests: ‘sit & reach’, medicine-ball forward throw, standing long jump, 20 m running speed, and forward roll test. In both boys and girls, body weight and Body Mass Index (BMI) were positively correlated with the medicine-ball throw performances and negatively correlated for the standing long jump and speed tests, while no association was found with tests measuring back flexibility and total body coordination. Daily physical activity and participation in sport were not significantly correlated with body weight and BMI, but were positively associated with children's motor performance. The standardised fitness tests selected in the current study have been found to be suitable to identify fitness levels of primary school children. Thanks to their limited number and ease of measurement, they can be used in any school context to classify children and for monitoring the effects of targeted interventions promoting physical activity.  相似文献   

The Effect of Climbing Wall Use on the Grip Strength of Fourth-Grade Students     

Cathy D. Lirgg  Ro Dibrezzo  Michelle Gray  Travis Esslinger 《Research quarterly for exercise and sport》2013,84(2):350-354

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The Impact of an Obstacle Course Sport Education Season on Students' Aerobic Fitness Levels     

Peter A. Hastie  Alice M. Buchanan  Danielle D. Wadsworth  Brandon J. Sluder 《Research quarterly for exercise and sport》2013,84(4):788-791

Abstract

The purpose of this study was to determine if factor patterns of selected sports skills were similar for two samples, a skilled sample and one consisting of a wide range of skills. Comparisons were also made with kinesiological evidence regarding the patterning of basic sports skills. Data consisting of performance scores on various sports skills were available for 166 high school girls. Out of this sample, a smaller sample was drawn consisting of 69 girls who were above average in skill. Two factor models, alpha and incomplete image analysis, were used in the analysis of this data. The factor pattern of selected sports skills performed by subjects above average in skill was similar in many respects to that of a sample which included a wide range of skill. The primary difference lay in the clustering of overarm skills which appeared in the above-average factor pattern. The overarm and push patterns of the above-average sample resembled the patterns of skill obtained through kinesiological analysis. The structure of kicking, underarm, and sidearm skills remained obscure, based on the results of factor analytic techniques.  相似文献   

Identifying and developing rugby talent among 10-year-old boys: A practical model     

Anita E. Pienaar  Manie J. Spamer  Hendrik S. Steyn Jr 《Journal of sports sciences》2013,31(8):691-699

The re-entry of South Africa into the international sporting arena and the resultant need for the identification and development of talent, especially among formerly deprived groups of people, provided the incentive for this study. Its aim was to identify the physical, motor and anthropometric variables that will enable coaches to identify 10-year-old boys, based on their abilities, who could become successful rugby players. Altogether, 173 ten-year-old boys with no rugby experience from a cross-section of the population were selected at random and subjected to 14 physical and motor tests and 14 anthropometric measurements. From 22 schools which participated in the Western Transvaal primary schools under-11 rugby league, the three top teams (n = 45 individuals) were selected and also tested. The results from these three teams were used as the criteria for rugby talent among 10-year-old boys. To establish the best predictors of talent, a stepwise discriminant analysis was conducted: this indicated eight variables (four motor and four anthropometric) that discriminated maximally between the talented and the rest of the players of this age. With classification functions based on these eight variables, 93.8% of all the subjects were classified correctly, indicating good validity. A canonical analysis, based on the selected variables, was then conducted on all the under-11 teams that played in the league in the region (n = 330), and they were ranked according to the scores of the first canonical variable from the most to the least talented. By comparing these results with the players who were chosen for the region's primary schools team, a success rate of 88% in prediction of talent was established. We conclude that this is a successful and practical method to aid the teacher and the coach in selecting and developing talent among 10-year-old rugby players in South Africa.  相似文献