全文获取类型
收费全文 | 681篇 |
免费 | 21篇 |
国内免费 | 14篇 |
专业分类
教育 | 201篇 |
科学研究 | 16篇 |
体育 | 355篇 |
综合类 | 144篇 |
出版年
2023年 | 1篇 |
2022年 | 4篇 |
2021年 | 1篇 |
2020年 | 7篇 |
2019年 | 4篇 |
2018年 | 7篇 |
2017年 | 8篇 |
2016年 | 11篇 |
2015年 | 15篇 |
2014年 | 32篇 |
2013年 | 49篇 |
2012年 | 40篇 |
2011年 | 66篇 |
2010年 | 32篇 |
2009年 | 36篇 |
2008年 | 46篇 |
2007年 | 47篇 |
2006年 | 41篇 |
2005年 | 35篇 |
2004年 | 38篇 |
2003年 | 30篇 |
2002年 | 38篇 |
2001年 | 36篇 |
2000年 | 18篇 |
1999年 | 12篇 |
1998年 | 17篇 |
1997年 | 18篇 |
1996年 | 16篇 |
1995年 | 3篇 |
1994年 | 2篇 |
1993年 | 2篇 |
1992年 | 2篇 |
1991年 | 2篇 |
排序方式: 共有716条查询结果,搜索用时 31 毫秒
121.
论述了罚球在比赛中的重要作用,罚球心理训练的重要性及方法,罚球心理训练应从青少年抓起,从小打下良好的心理基础,使他们进入高水平运动队后能有更大的发展。 相似文献
122.
123.
文章通过对毽球脚攻球技术的运用、研究和探索,结合现代毽球运动中脚攻球的技术特点,介绍了毽球脚攻球技术的训练原则、训练步骤、训练方法等。毽球运动是具有鲜明特点的运动项目,因此,要根据它的自身特征来进行训练,而脚攻球技术是毽球运动中的重点和难点,教练员和运动员要着重进行局部训练,以提高运动员的竞技水平。 相似文献
124.
王金灿 《武汉体育学院学报》2007,41(5):89-92
通过应用仪器测试和人工测试方法,对体育院系乒乓球技术考核的结果进行相关分析,对多球发球机应用于乒乓球技术考核进行了探索,以探求乒乓球技术考核的标准化途径。证明应用多球发球机进行乒乓球基本技术考核是可行的,它具有连续性强、长时间持续高强度工作、能保持送球质量的统一和稳定性,减小送球的随意性和主观性。同时提出其应用于技术考核的不足之处,探讨发球机用于技术考核的适宜对象和适宜内容。 相似文献
125.
对普通高校乒乓球普修课的多球教学研究 总被引:1,自引:0,他引:1
采用文献资料法、实验法、访谈法等方法,以普修乒乓球课的学生为对象,对学生的乒乓球多球教学进行研究,目的在于通过多球训练方法,全面提高学生的技术水平。研究结果表明多球练习可以加强单位时间训练的密度、强度,做到反复练习,对于提高基本技术和步法效果明显。 相似文献
126.
Peter H. Hackbert 《美中教育评论》2010,(10):10-21
Creativity is the process of generating something new or original that has value to an individual, a group, an organization, an industry or a society. Improvisational theater techniques are used to enhance creative thinking and action in a variety of disciplines as broad as education, theater, dance, painting, writing and music, law, business, and most recently, entrepreneurship. This paper describes an academic setting that draws upon the definition, techniques and improvisational methods as prerequisites for a progression of increased experiences of idea generation, new product invention and innovation. Improvisation is used as a critical ingredient to enhance creativity for undergraduate liberal arts students in a freshman general studies course leading to student product development and field-based innovations. 相似文献
127.
Takahito Iga Hiroyuki Nunome Shinya Sano Nahoko Sato Yasuo Ikegami 《Sports biomechanics / International Society of Biomechanics in Sports》2018,17(4):477-493
To assess ball impact force during soccer kicking is important to quantify from both performance and chronic injury prevention perspectives. We aimed to verify the appropriateness of previous models used to estimate ball impact force and to propose an improved model to better capture the time history of ball impact force. A soccer ball was fired directly onto a force platform (10 kHz) at five realistic kicking ball velocities and ball behaviour was captured by a high-speed camera (5,000 Hz). The time history of ball impact force was estimated using three existing models and two new models. A new mathematical model that took into account a rapid change in ball surface area and heterogeneous ball deformation showed a distinctive advantage to estimate the peak forces and its occurrence times and to reproduce time history of ball impact forces more precisely, thereby reinforcing the possible mechanics of ‘footballer’s ankle’. Ball impact time was also systematically shortened when ball velocity increases in contrast to practical understanding for producing faster ball velocity, however, the aspect of ball contact time must be considered carefully from practical point of view. 相似文献
128.
Sigrid B. H. Olthof Wouter G. P. Frencken Koen A. P. M. Lemmink 《Journal of sports sciences》2018,36(14):1557-1563
Small-sided games (SSGs) are used in training sessions to prepare for full-sized matches. For the same number of players, smaller pitch sizes result in decreased physical performance and shorter interpersonal distances. A relative pitch area derived from the full-sized match results in larger pitch sizes and this may increase the fit between SSGs and full-sized matches. This study aimed to investigate SSGs with a traditional small pitch and a match-derived relative pitch area in youth elite soccer players. Four age categories (under-13, under-15, under-17 and under-19) played 4 vs. 4 plus goalkeepers on a small (40x30m, 120m2 relative pitch area) and large pitch (68x47m, 320m2 relative pitch area). The number of games per age category ranged 15–30. Positional data (LPM-system) were collected to determine physical (total distance covered, high intensity distance and number of sprints) and team tactical (inter-team distance, LPW-ratio, surface area, stretch indices, goalkeeper-defender distance) performance measures and tactical variability. On a large pitch, physical performance significantly increased, inter-team and intra-team distances were significantly larger and tactical variability of intra-team distance measures significantly increased. The match-derived relative pitch area is an important training manipulation and leads to changes in physical and tactical performance 4 vs. 4 plus goalkeepers. 相似文献
129.
ABSTRACTBy manipulating the congruency between body kinematics and subsequent ball trajectory, this study investigated the anticipation capabilities of regional-level, college-level, and novice table tennis players using a full video simulation occluder paradigm. Participants watched footage containing congruent, incongruent, or no ball trajectory information, to predict the landing point of the ball. They were required to choose between two potential locations to make their prediction. Percent accuracy and relevant indexes (d-prime, criterion, effect size) were calculated for each condition. Results indicated that experienced table tennis players (both regional and college players) were superior to novices in the ability to anticipate ball trajectory using kinematic information, but no difference was found between regional-level and college-level players. The findings of this study further demonstrate the superior anticipation ability of experienced table tennis players. Furthermore, the present result suggests that there may be a certain “baseline” level of motor experience in racquet sports for effective action anticipation, while the addition of further motor experience does not appear to assist direction anticipation. 相似文献
130.
竞技能力结构模型的分析与新议——皮球理论模型的建立 总被引:1,自引:0,他引:1
研究并建立运动员竞技能力的结构模型,是实施模式训练的重要工作环节。目前建立的竞技能力的结构模型虽然从不同角度阐述了竞技能力结构,但都存在明显的缺陷。以系统理论和混沌理论为理论依据建立的皮球理论模型,表现出整体性、直观性、动态性和混沌性的优点,很好地诠释了竞技能力的结构特征和发展变化,弥补了以往研究的缺陷。 相似文献