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足球运动员比赛情绪的稳定性对技能水平的发挥起着能动作用。本文从心理学的角度出发,探讨了足球运动员比赛情绪稳定性的特征和形成机制。根据足球运动的技术特点和足球比赛的竞技规律,分析了影响足球运动员比赛情绪稳定性的因素,并提出了训练心理调控和赛前（含中场休息）心理调控两类方法。 相似文献
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袁国伟 《宁夏师范学院学报》2008,29(3):104-107,110
本文运用文献资料法、录像统计法、数理统计法、对比分析法和逻辑分析法,根据2006年世界男排联赛成都赛区中国队与其他队比赛的数据,比较分析中国男排的技术运用特点及存在的问题,有针对性地找出解决策略,为中国男排2008年北京奥运会争取好成绩提供理论依据. 相似文献
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大学生思想政治理论课的教育生态包括外源性生态和内源性生态。它主要由外在的社会环境、家庭环境、学校环境等多维生态与思想政治理论课的资源配置、课堂环境、教材建设、评价体系等教学结构的各层次的生态因子构成。这一系统强调有机统一、亲和融洽,追求教育内部与外部主客体之间的相互依赖,互生互补,协同进化,和谐发展。但是,目前思想政治理论课的教育生态存在危机,需要认清生态系统的构成,采取有效措施,加强建设,才能取得实效。 相似文献
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CBA主客场赛季制准备期训练特点的研究 总被引：1，自引：0，他引：1
CBA主客场赛季制最大的特点是准备期短,竞赛期长,如何在较短的准备期中形成运动员的竞技状态,并在长的竞赛期中维持这一状态就显得十分重要.试图通过对CBA主客场赛季制赛前准备期的训练时间和任务、训练内容与方法手段、训练负荷的特点等进行探讨与分析,以指导CBA球队的训练,从而提高我国篮球训练工作质量和运动水平,并进一步完善我国篮球训练理论. 相似文献
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从14届世界男篮锦标赛对我国后卫队员比赛能力的分析 总被引：20，自引：0，他引：20
以参加第14届世界男子篮球锦标赛六支队伍后卫的个人攻防技术能力指标作为研究对象，采用献资料、录像观察、统计和对比方法，分析了中国男篮与世界优秀男篮后卫队员之间在个人攻防技术能力上的差距，为今后我国后卫队员的培养提供参考。 相似文献
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Andrew Borrie Gudberg K. Jonsson Magnus S. Magnusson 《Journal of sports sciences》2013,31(10):845-846
Quantitative analysis of sports performance has been shown to produce information that coaches can use within the coaching process to enhance performance. Traditional methods for quantifying sport performances are limited in their capacity to describe the complex interactions of events that occur within a performance over time. In this paper, we outline a new approach to the analysis of time-based event records and real-time behaviour records on sport performance known as T-pattern detection. The relevant elements of the T-pattern detection process are explained and exemplar data from the analysis of 13 soccer matches are presented to highlight the potential of this form of analysis. The results from soccer suggest that it is possible to identify new profiles for both individuals and teams based on the analysis of temporal behavioural patterns detected within the performances. 相似文献
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ABSTRACTThis study’s main objective is to analyse the relationship between network-based centrality measures and physical demands in elite football players. Thirty-six matches from La Liga, the Spanish league, were analysed in the 2017/18 season. The analysis of networks formed by team players passing the ball included: degree-prestige (DP), degree-centrality (DC), betweenness-centrality (BC), page-rank (PRP) and closeness-centrality (IRCC). A video-based system was used for analysing total distance (TDpos) and distance run >21Km/h (TD21pos) when the team was in possession of the ball. A magnitude-based inference and correlation analysis were applied. There were different styles of play, team-A was characterized by greater ball circulation (e.g. higher values of DP, DC, BC and IRCC) while team-B used a more direct game (lower values in centrality-metrics except with PRP). Furthermore, TDpos was higher in team-A than in team-B, but those differences disappeared for TD21pos between teams with the exception of the forwards. Finally, the correlation among centrality measures and physical performance were higher in team-B. Coaches could identify the key opponents and players who are linked to them, allowing to adjust performance strategies. Furthermore, interaction patterns between teammates can be used to identify preferential paths of cooperation and to take decisions regarding these relations in order to optimize team performance. 相似文献
48.
《European Journal of Sport Science》2013,13(4):269-277
Abstract The broader measures of offensive effectiveness, such as scoring opportunities and shots at goal, are commonly used as an alternative to goals scored due to the naturally low probability of scoring (about 1%) in soccer match-play. These measures may enable soccer practitioners to objectively see behind single match results, which are often influenced by chance. The purpose of this study was to examine the relationship between broader measures (scoring opportunities and score box possessions) and the ultimate measure (goals scored) of offensive effectiveness. We analysed data from videotapes of 163 of 182 (90%) matches played in the Norwegian men's professional league during the 2004 season. Multiple logistic regression analyses showed very similar results when comparing the effectiveness of different offensive tactics, regardless of which outcome was used. For example, counterattacks were more effective than elaborate attacks in producing goals (odds ratio OR=2.07, 95% confidence interval: 1.40 to 3.05), scoring opportunities (OR=2.30, 95% confidence interval: 1.28 to 4.15), and score box possessions (OR=2.12, 95% confidence interval: 1.39 to 3.25). The receiver-operating characteristic function statistical procedure was used to examine the association between each of the three measures of offensive effectiveness: scoring opportunities, score box possessions, and goals scored. No significant difference was observed between the area under the curve (AUC) for the broader measures (scoring opportunities and score box possessions) and the ultimate measure (goals scored) of offensive effectiveness. The 95% confidence interval of the AUC for both scoring opportunities (0.74–0.84) and score box possessions (0.68–0.76) includes the AUC for goals scored (0.74). Thus, the results are very similar regardless of which outcome measure for offensive effectiveness is used. This indicates that scoring opportunities and score box possessions (shooting opportunities) can be used as a proxy for goals scored when comparing the effectiveness of different playing tactics in soccer. Compared with goals scored, using scoring opportunities or score box possessions requires smaller match samples for meaningful analyses, and may therefore be more feasible alternatives. 相似文献
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基于嵌入式设备FPGA,对无损压缩算法Deflate算法进行加速。采用哈希表方法,把Deflate核心算法用在FPGA上,实现了软硬件协同设计。独创性地设计并实现了窗口大小为32K的Deflate算法。主要介绍该设计的哈希表模块部分。 相似文献