首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   9151篇
  免费   406篇
  国内免费   380篇
教育   1282篇
科学研究   69篇
各国文化   12篇
体育   6425篇
综合类   2104篇
文化理论   2篇
信息传播   43篇
  2023年   1篇
  2022年   35篇
  2021年   67篇
  2020年   120篇
  2019年   136篇
  2018年   203篇
  2017年   186篇
  2016年   201篇
  2015年   204篇
  2014年   540篇
  2013年   775篇
  2012年   733篇
  2011年   890篇
  2010年   699篇
  2009年   698篇
  2008年   754篇
  2007年   729篇
  2006年   713篇
  2005年   514篇
  2004年   431篇
  2003年   339篇
  2002年   255篇
  2001年   187篇
  2000年   157篇
  1999年   81篇
  1998年   98篇
  1997年   51篇
  1996年   19篇
  1995年   31篇
  1994年   32篇
  1993年   19篇
  1992年   24篇
  1991年   9篇
  1990年   6篇
排序方式: 共有9937条查询结果,搜索用时 15 毫秒
61.
A substantial amount of evidence suggests that collegiate and elite athletes involved in weight-sensitive sports are at greater risk of developing eating disorders (EDs) than the general population. With the limited effectiveness of treatment for EDs, prevention of EDs has been broadly considered in the literature. The present paper reviewed the existing literature on ED prevention programmes for athletes in order to determine the current status of prevention programmes and recommend future directions. The available literature suggests that selective, primary interventions with multiple targets and an interactive multimodal approach appear most effective. Current challenges in the field, including lack of longitudinal research, hesitation by the sport community to be involved in ED research and poor cross-field communication and collaboration, are also explored. The lack of dissemination of evidence-based prevention programmes and the simultaneous promotion of prevention programmes that have not yet been empirically examined are also discussed. Based on these observations future directions are recommended.  相似文献   
62.
Dribbling speed in soccer is considered critical to the outcome of the game and can assist in the talent identification process. However, little is known about the biomechanics of this skill. By means of a motion capture system, we aimed to quantitatively investigate the determinants of effective dribbling skill in a group of 10 Under-13 sub-elite players, divided by the median-split technique according to their dribbling test time (faster and slower groups). Foot-ball contacts cadence, centre of mass (CoM), ranges of motion (RoM), velocity and acceleration, as well as stride length, cadence and variability were computed. Hip and knee joint RoMs were also considered. Faster players, as compared to slower players, showed a 30% higher foot-ball cadence (3.0 ± 0.1 vs. 2.3 ± 0.2 contacts · s?1, < 0.01); reduced CoM mediolateral (0.91 ± 0.05 vs. 1.14 ± 0.16 m, < 0.05) and vertical (0.19 ± 0.01 vs. 0.25 ± 0.03 m, < 0.05) RoMs; higher right stride cadence (+20%, < 0.05) with lower variability (< 0.05); reduced hip and knee flexion RoMs (< 0.05). In conclusion, faster players are able to run with the ball through a shorter path in a more economical way. To effectively develop dribbling skill, coaches are encouraged to design specific practices where high stride frequency and narrow run trajectories are required.  相似文献   
63.
Abstract

Studies on the development of Olympic Solidarity as a tool of the International Olympic Committee (IOC) to enable National Olympic Committees of developing countries access to resources and influence in the Olympic Movement exist. However, historical scholarship has relatively neglected the development of aid programs by International Federations to explain how they made use of resources to gain influence in international sport politics. Based on extensive multi-national and multi-lingual archival research in the archives of the International Association of Athletics Federation (IAAF) and the German Sport University Cologne, this article explores the establishment and development of the IAAF‘s Technical Aid Program, which had been installed in 1974. Referencing a large amount of previously unknown protocols and written correspondence, the paper critically discusses the IAAF‘s development activities in light of two parallel occurring processes that shaped the federation’s character in the 1970s and 1980s decisively: its increasing commercialization and its path towards democratization in its voting system. It is argued that the IAAF development programs served as a tool to enforce commercial and sport political interests whilst the nature of support remained without clear guidance until the mid-1980s.  相似文献   
64.
Abstract

This paper explores the migration of female basketball players from Taiwan to China. Governance theory is adopted as the framework in this study to analyze the phenomenon of players’ migration and to understand how it was shaped over the years. The empirical work draws on a qualitative approach, which is based on a review of documentary materials and semi-structured interviews; coding and analysis were undertaken with a content analysis approach in order to investigate the decision-making processes and their consequences for the players’ migration. The feature of systematic governance for the development of women’s basketball has been revealed in this study. Stakeholders with personal interests caused the downturn of women’s basketball development in Taiwan, and it eventually led to the players’ migration abroad. Through the lens of governance theory, it has been revealed that a number of factors – namely, political, financial, personal, socio-economic, and cultural – all intertwine with one another dynamically to influence the female players’ decision to move abroad. This finding broadens the scope for the research of Taiwanese athletes’ migration to China, extending the focus from only business or industry to other aspects, thereby highlighting the fact that the subject is more complex than previously understood.  相似文献   
65.
Abstract

This paper explores multiple and complex relationships between football (soccer), politics, and the economy in postcolonial Zambia. Based on archival and oral sources collected in Zambia, the paper argues that President Frederick Chiluba’s government failed to support football development when it came into power in 1991 because it was elected on a platform of liberalizing the collapsing national economy. Chiluba privatized state-owned companies that were sponsoring the game resulting in the plummeting of the local standards and migration of talented footballers abroad in search of better livelihoods. Furthermore, the paper argues that while the exodus of talented footballers led to the deterioration of the standards of the local league, their transnational experience boosted the performance of the Zambia national football team. This led to the emergence of one of the best national teams the country has ever had. Unfortunately, this particular team perished in the Gabon air disaster in 1993 following the government’s disinvestment in the game. However, a few months after the disaster, the country managed to rebuild a national football team, which emerged as runners up to Nigeria in the 1994 African Cup of Nations final as a result of a large pool of local and foreign-based football players.  相似文献   
66.
目的:用针灸配合浅针耳穴综合治疗运动员运动性失眠以缓解因失眠导致的精神不振、困倦乏力和反应迟钝等症状,从而提高运动员的训练质量和运动成绩。方法:随机分组分成针灸组和对照组。针灸组,以针刺印堂、神门、三阴交为主穴,结合脏腑酌情加取穴位并配以浅针耳穴。药物组,口服安神补心胶囊。结果:针灸组和药物组均为30例,有效率分别为93.3%和70.0%,通过假设检验,得出两组治疗效果存在显著差异( P<0.05)。结论:针灸配合耳穴浅针综合治疗运动员运动性失眠临床疗效显著,安全性好,适合推广。  相似文献   
67.
采用文献资料法、问卷调查法、数理统计法等,对焦作市居民参与休闲体育活动的现状进行调查研究,并提出相应的对策,以期为焦作市乃至全国居民参与休闲体育活动提供参考。  相似文献   
68.
党的十六大报告中明确指出,统筹城乡经济社会发展,是全面建设小康社会的重大任务。针对目前城乡社会体育存在的显著差异,从经济、制度、意识等方面指出造成差异的根源,并提出相应的对策。  相似文献   
69.
Objectives: Development of evidence-based methods of Paralympic classification requires research quantifying the relative strength of association between ratio-scaled measures of impairment and athletic performance. The purpose of this study was to quantify the extent to which muscle strength affects running performance in runners with and without brain impairment. Design: Cross-sectional study. Methods: Participants were 41 male runners: 13 with brain impairments (RBI) and 28 non-disabled (NDR). All participants completed a maximal 60-m sprint and a novel battery of three lower limb isometric strength tests. Results: RBI showed significantly lower strength scores compared with NDR on the more affected side in leg flexion (176 vs. 243?N), leg extension (993 vs. 1661?N) and plantarflexion (824 vs. 1457?N). Significant differences were also seen on the less affected side in plantarflexion (1072 vs. 1508?N). RBI were significantly slower in the acceleration phase (0–15?m) (3.2?s?±?0.3?vs. 2.8?s?±?0.2) and top speed phase (30?60?m) (4.3?s?±?0.6?vs. 3.8?s?±?0.3). Correlation analysis showed stronger relationships between strength and running performance in RBI than NDR; however, the correlations were not significant. Conclusions: This study evaluated measures to assess strength for the purposes of classification and found that the measures were significantly different in RBI compared with NDR indicating the tests were able to capture strength impairment in this population. This study indicates that strength may be an important impairment type to assess in this population, as impairments of muscle strength may influence the outcome of running performance in athletes with more severe impairments.  相似文献   
70.
对德州市成人的心血管机能指标:心率、收缩压、舒张压、台阶指数进行分析与评价,结果为下等和差等、研究认为健康意识差、膳食结构不合理、运动习惯差、缺少体育文化氛围是造成现状的重要原因,针对群体状况提出“自我感觉练习法”和几项对策与建议,以指导健身练习。  相似文献   
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号