后奥运时代竞技体育的理性回归与可持续发展研究     

冯晓丽  赤新生 《搏击·武术科学》2010,(10)

建国以来,由于国情的需要,我国竞技体育一直呈强势发展的趋势,然而,伴随我国竞技体育的发展,人民群众的体质却一直呈不断下降的局面,特别是青少年体质持续20年下降的现实,不能不引起社会的重视。在此基础上,必然存在竞技体育的理性回归,保持在一个健康、稳定、可持续发展的水平,本文从这一角度出发,重点认识竞技体育的理性回归和可持续发展。  相似文献   

高水平网球运动员焦虑特征的分析     

林驰 《福建体育科技》2010,29(6):33-34,39

采用文献资料法、问卷调查法、访谈法、数据统计法研究我国高水平网球运动员的特质焦虑特征。研究表明：我国高水平网球运动员的认知特质焦虑各维度水平与其训练年限、文化程度、性别等密切相关,高水平网球运动员认知特质焦虑中的对方实力焦虑、失败焦虑和受伤焦虑显著低于普通运动员,比赛准备焦虑较普通运动员高。  相似文献   

IT能力对企业绩效影响机制的实证研究——基于组织学习的视角   总被引：3，自引：0，他引：3  

迟嘉昱  孙翎 《情报杂志》2010,29(4)

现有研究表明企业的IT能力与企业绩效间并没有必然的正相关关系.企业应该具备哪些IT能力?如何才能发挥这些IT能力的作用,帮助企业获取持续的竞争优势?这些问题成为了当前信息系统研究的热点问题.尝试从组织学习的视角来探讨企业的IT能力对企业绩效之间的影响机制,并通过实证研究检验了组织学习在IT能力与企业绩效的作用中起到了部分中介的作用.  相似文献   

Kicking modality during erratic-dynamic and static condition effects the muscular co-activation of attacker     

Tae-Whan Kim  Sang-Cheol Lee  Se-Kee Kil  Sung-Chul Kang  Young-Tae Lim 《Journal of sports sciences》2017,35(9):835-841

The purpose of the study was to investigate the effect of different kicking modality, i.e., erratic-dynamic target (EDT) versus static target (ST) on the performance of the roundhouse kick in two groups of taekwondo athletes of different skill level. Three-dimensional analysis and surface electromyography (SEMG) analysis were performed on 12 (Group A: six sub-elite, Group B: six elite) athletes to investigate muscle co-activation pattern under two conditions, i.e., EDT versus ST. In the results, the muscle recruitment ratio of the agonistic muscles was higher for Group A, whereas Group B had higher recruitment ratio for antagonist muscles. Overall, the co-activation index (CI) of hip joints appeared higher in the extensors for Group A, whereas higher CI was observed in flexor muscles for Group B with comparatively higher CI during EDT condition than ST condition. Higher value of CI was observed in flexor muscles of the knee joints among Group A during EDT conditions, in contrast, higher CI in the extensor muscles was observed among Group B during ST conditions. In conclusion, the study confirmed that erratic-dynamic movements of target could change the movement coordination pattern to maintain the joint stability of participants.  相似文献   

GIS技术在现代社区管理与服务中的应用   总被引：1，自引：0，他引：1  

朱赤  高海滨  朵成旭 《科技管理研究》2010,30(18)

GIS技术是一种非常有效的信息管理和组织方式,能够将空间事物的地理位置和特征有机地结合在一起,直观、形象、全面地展现出来,在现代社区管理与服务中有着广阔的应用前景,将成为社区信息化建设的重要组成部分.对于提高社区管理水平、提升居民生活品质都有着积极的作用.本文介绍了清华园社区在将GIS技术应用于现代社区管理与服务方面的探索和实践.  相似文献   

Grounded theory analysis of e-government initiatives: Exploring perceptions of government authorities     

Jungwoo Lee  Jinhwa Kim 《Government Information Quarterly》2007

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Managing IT-enabled transformation in the public sector: A case study on e-government in South Korea     

Hyun Jeong Kim  Gary Pan  Shan Ling Pan 《Government Information Quarterly》2007

The implementation of e-government is a burgeoning phenomenon across the globe. It improves and enhances the infrastructures and services provided to the citizens. However, a review of the IS literature reveals that research on the implementation of e-government is rather limited, which could be due to the general misconception of the public sectors as rigid and risk-averse establishments. The shortage of studies on e-government’s implementation presents a knowledge gap that needs to be plugged. This gap is significantly amplified by the increasing number of e-government initiatives being implemented by governments in recent years. This paper describes and analyzes South Korea’s Supreme Court Registry Office, which has implemented e-government. The case study discusses practical implications and suggests future research areas. Findings of the study include the alignment of technology and business processes, integration of resources into core business activities, integrating stakeholders’ trust and commitment, and better understanding of the role of organizational learning, which can enhance the adoption and institutionalization of e-government initiatives.  相似文献   

儿童、少年篮球运动员选材标准的研制过程与方法   总被引：3，自引：0，他引：3  

池建  邢文华  林珍瑜 《北京体育大学学报》1993,(4)

经经验初选、统计筛选(主成份分析和聚类分析)、小样本测试检验和专业理论知识分析评定4个步骤,在初步拟定的40项选材指标中选出6大类、16项指标为本课题的选材指标。旨在建立全国统一的各年龄段儿童、少年篮球运动员的选材指标体系,并制定选材标准及评价方法。  相似文献   

普通高校对实施《体育与健康》课程认识的调查研究     

王革  卓莉  张驰  唐海军 《体育科研》2004,25(1):69-71

采用文献资料、问卷调查、专家访谈等科研方法对普通高校实施《体育与健康》课程认识进行调查,结果表明:多数高校体育教师认为《体育与健康》课程符合大学生的身心发展特点,赞成《体育与健康》的提法,并肯定了其效果。  相似文献   

Differences between the sexes in the three-dimensional angular rotations of the lumbo-pelvic-hip complex during treadmill running     

Schache AG  Blanch P  Rath D  Wrigley T  Bennell K 《Journal of sports sciences》2003,21(2):105-118

The aims of this experiment were to determine whether there are differences between the sexes in the three-dimensional angular rotations of the lumbo-pelvic-hip complex during running and, if such differences exist, to establish whether factors other than sex can explain the observed differences. A cohort of 44 non-injured runners (22 males, 22 females) who usually ran more than 20 km per week were voluntarily recruited. All trials were conducted on a treadmill at a running speed of 4.0 m x s(-1). Reflective markers were placed over specific anatomical landmarks of the thoraco-lumbar spine, pelvis and femur. Data were captured using a VICON motion analysis system. Females tended to display a greater peak-to-peak oscillation for most of the angular rotations. An offset was the main difference between the male and female group mean waveforms for pelvis anterior-posterior tilt. Forward stepwise regression analysis revealed that sex was the most common variable related to the amplitudes of the angular rotations. Given these results, sport scientists conducting future biomechanical studies using angular data to test hypotheses are advised to be extremely cautious about averaging across male and female participants.  相似文献