全文获取类型
| 收费全文 | 1222篇 |
| 免费 | 34篇 |
| 国内免费 | 2篇 |
专业分类
| 教育 | 774篇 |
| 科学研究 | 73篇 |
| 各国文化 | 36篇 |
| 体育 | 145篇 |
| 文化理论 | 7篇 |
| 信息传播 | 223篇 |
出版年
| 2023年 | 13篇 |
| 2022年 | 11篇 |
| 2021年 | 15篇 |
| 2020年 | 39篇 |
| 2019年 | 62篇 |
| 2018年 | 73篇 |
| 2017年 | 73篇 |
| 2016年 | 69篇 |
| 2015年 | 38篇 |
| 2014年 | 35篇 |
| 2013年 | 260篇 |
| 2012年 | 33篇 |
| 2011年 | 41篇 |
| 2010年 | 30篇 |
| 2009年 | 34篇 |
| 2008年 | 36篇 |
| 2007年 | 33篇 |
| 2006年 | 33篇 |
| 2005年 | 31篇 |
| 2004年 | 16篇 |
| 2003年 | 18篇 |
| 2002年 | 18篇 |
| 2001年 | 10篇 |
| 2000年 | 14篇 |
| 1999年 | 7篇 |
| 1998年 | 12篇 |
| 1997年 | 8篇 |
| 1996年 | 13篇 |
| 1995年 | 17篇 |
| 1994年 | 12篇 |
| 1993年 | 12篇 |
| 1992年 | 8篇 |
| 1991年 | 14篇 |
| 1990年 | 13篇 |
| 1989年 | 7篇 |
| 1988年 | 8篇 |
| 1987年 | 4篇 |
| 1986年 | 7篇 |
| 1984年 | 4篇 |
| 1981年 | 5篇 |
| 1978年 | 9篇 |
| 1977年 | 4篇 |
| 1976年 | 5篇 |
| 1975年 | 6篇 |
| 1974年 | 3篇 |
| 1972年 | 4篇 |
| 1969年 | 3篇 |
| 1968年 | 3篇 |
| 1964年 | 4篇 |
| 1957年 | 3篇 |
排序方式： 共有1258条查询结果，搜索用时 15 毫秒
41.
42.
Nicholas Tam Devon R. Coetzee Safwaan Ahmed Robert P. Lamberts Yumna Albertus-Kajee Ross Tucker 《European Journal of Sport Science》2017,17(9):1220-1229
Introduction: Many factors may contribute to running-related injury. These include fatigue and footwear, the combination of which has rarely been studied, in particular with reference to barefoot running, recently advocated as a method to reduce injury risk. Methods: Twenty-two runners (12 well-trained and 10 trained) participated in a 10?km fatiguing trial. Knee and ankle joint kinematics and kinetics and electromyography were assessed during overground running in the barefoot and shod condition. This was performed pre- and post-fatigue using a motion capture system and force platforms. Results: Initial loading rate increased in the trained runners when barefoot but not shod. Shod knee stiffness increased in both groups after fatigue, whereas barefoot knee stiffness decreased only in the trained group. A reduction in barefoot bicep femoris pre-activation was found in both groups. During stance, a reduction in vastus lateralis and biceps femoris and an increase in tibialis anterior activity were found over time in both groups and conditions. Trained runners decreased gluteus medius and increased lateral gastrocnemius median frequency for both conditions after fatigue. Conclusion: When fatigued, gait adjustments in habitually shod runners may increase injury risk when running barefoot. Training status may be a risk factor for injury, as less-trained runners experience muscular fatigue changes that may compromise ground reaction force attenuation. Caution is recommended when transitioning to pure barefoot running. 相似文献
43.
Nicholas L. Holt Kacey C. Neely Linda G. Slater Martin Camiré Jean Côté Jessica Fraser-Thomas 《International review of sport and exercise psychology》2017,10(1):1-49
The overall purpose of this study was to create a model of positive youth development (PYD) through sport grounded in the extant qualitative literature. More specifically, the first objective was to review and evaluate qualitative studies of PYD in sport. The second objective was to analyze and synthesize findings from these studies. Following record identification and screening, 63 articles were retained for analysis. Meta-method analysis revealed strengths of studies were the use of multiple data collection and validity techniques, which produced high-quality data. Weaknesses were limited use of ‘named’ methodologies and inadequate reporting of sampling procedures. Philosophical perspectives were rarely reported, and theory was used sparingly. Results of an inductive meta-data analysis produced three categories: PYD climate (adult relationships, peer relationships, and parental involvement), life skills program focus (life skill building activities and transfer activities), and PYD outcomes (in personal, social, and physical domains). A model that distinguishes between implicit and explicit processes to PYD is presented. 相似文献
44.
Nicholas P. Murray 《Journal of sports sciences》2017,35(3):241-246
Considerable research has documented that successful performance in interceptive tasks (such as return of serve in tennis) is based on the performers’ capability to capture appropriate anticipatory information prior to the flight path of the approaching object. Athletes of higher skill tend to fixate on different locations in the playing environment prior to initiation of a skill than their lesser skilled counterparts. The purpose of this study was to examine visual search behaviour strategies of elite (world ranked) tennis players and non-ranked competitive tennis players (n = 43) utilising cluster analysis. The results of hierarchical (Ward’s method) and nonhierarchical (k means) cluster analyses revealed three different clusters. The clustering method distinguished visual behaviour of high, middle-and low-ranked players. Specifically, high-ranked players demonstrated longer mean fixation duration and lower variation of visual search than middle-and low-ranked players. In conclusion, the results demonstrated that cluster analysis is a useful tool for detecting and analysing the areas of interest for use in experimental analysis of expertise and to distinguish visual search variables among participants’. 相似文献
45.
Using a two-study approach, we examined a methodology for objectively depicting team performance and form in a professional rugby union side. Study 1 developed standardized indicators to examine a team's performance in a single match relative to their previous matches over a domestic season via a performance report and form chart. This resulted in standardized performance indicators that provided instant and coherent feedback on the team's performance relative to previous standards. Study 2 then utilized this methodology to compare a match between two professional sides, played the following season, to assess the extent to which the performance by one team affected that of the other. Comparison of the two teams' performances, for the match they played against each other, identified a drop in relative performance (against previous standards) for both teams on the same performance indicators. This appeared to be due to the match being a close, hard-fought contest particularly in the tackle and around the gain-line. The findings of the two studies suggest an accurate and viable methodology for depicting team performance that is superior to the global measures previously adopted. Presenting teams' current standardized performances (i.e. form) on a single visual scale also has utility for coaches within an applied setting. Future research should further investigate the effect of one team's performance on another through both individual and team outcomes. 相似文献
46.
Stressors in elite sport: a coach perspective 总被引：1，自引：1，他引：0
We examined the varying performance and organizational stressors experienced by coaches who operate with elite athletes. Following interviews with eleven coaches, content analysis of the data revealed coaches to experience comparable numbers of performance and organizational stressors. Performance stressors were divided between their own performance and that of their athletes, while organizational stressors included environmental, leadership, personal, and team factors. The findings provide evidence that coaches experience a variety of stressors that adds weight to the argument that they should be labelled as "performers" in their own right. A variety of future research topics and applied issues are also discussed. 相似文献
47.
Myers ND Wolfe EW Maier KS Feltz DL Reckase MD 《Research quarterly for exercise and sport》2006,77(4):451-463
This study extended validity evidence for multidimensional measures of coaching competency derived from the Coaching Competency Scale (CCS; Myers, Feltz, Maier, Wolfe, & Reckase, 2006) by examining use of the original rating scale structure and testing how measures related to satisfaction with the head coach within teams and between teams. Motivation, game strategy, technique, and character building comprised the dimensions of coaching competency. Data were collected from athletes (N = 585) nested within intercollegiate men's (g = 8) and women's (g = 13) soccer and women's ice hockey (g = 11) teams (G = 32). Validity concerns were observed for the original rating scale structure and the predicted positive relationship between motivation competency and satisfaction with the coach between teams. Validity evidence was offered for a condensed post hoc rating scale and the predicted relationship between motivation competency and satisfaction with the coach within teams. 相似文献
48.
Sixten Marklund Franz Hilker Marjorie L. Jenkins Franklin Parker Gustav Jahoda M. J. Langeveld Karl Henrik Eriksson Nicholas Hans Gilbert de Landsheere Leslie D. Mclean J. Cambon A. St. Langeland S. Wiegersma Richard F. Goodings J. B. Biggs 《International Review of Education/Internationale Zeitschrift für Erziehungswissenschaft/Revue internationale l'éducation》1966,12(2):221-251
49.
50.