Effects of competition level on the centre forward role of men's water polo     

Corrado Lupo  Carlo Minganti  Cristina Cortis  Fabrizio Perroni  Laura Capranica  Antonio Tessitore 《Journal of sports sciences》2013,31(9):889-897

Abstract

This study aimed to compare specific technical and tactical indicators of the team and centre forward role of Euro League, and Italian Serie A1, Serie A2, and Serie B men's water polo club competitions. A notational analysis was performed on 21 water polo matches to evaluate the occurrence of technical and tactical team and centre forward indicators, highlighting differences among championships according to chi-square analyses. Differences emerged for Counterattack (P < 0.001) and Power-Play (P < 0.001) possessions, Even (P < 0.001; Euro League: 3 ± 1, Serie A1: 3 ± 2, Serie A2: 3 ± 2, Serie B: 6 ± 4) and Power-Play (P = 0.001) goals, and exclusions and penalties (P = 0.008) of the team during Even possessions. Relatively to the role analyses, effects emerged for perimeter players playing events (P = 0.049), as well as for centre forwards' goals (P = 0.007) and exclusions and penalties (P < 0.001; Euro League: 8 ± 1, Serie A1: 6 ± 2, Serie A2: 6 ± 2, Serie B: 3 ± 2) occurring at the end of Even possessions. Therefore, in Euro League, and Italian Serie A1 and Serie A2, teams perform a high occurrence of Power-Play possessions following up an exclusion, especially achieved by the centre forward during Even possessions, while, in Italian Serie B, goals were mostly scored during Even possessions, with a relevant contribution from the centre forward role.  相似文献   

The effect of playing tactics and situational variables on achieving score-box possessions in a professional soccer team     

Joaquin Lago-Ballesteros  Ezequiel Rey 《Journal of sports sciences》2013,31(14):1455-1461

Abstract

The aim of this study was to analyse the influence of playing tactics, opponent interaction and situational variables on achieving score-box possessions in professional soccer. The sample was constituted by 908 possessions obtained by a team from the Spanish soccer league in 12 matches played during the 2009–2010 season. Multidimensional qualitative data obtained from 12 ordered categorical variables were used. Sampled matches were registered by the AMISCO PRO^® system. Data were analysed using chi-square analysis and multiple logistic regression analysis. Of 908 possessions, 303 (33.4%) produced score-box possessions, 477 (52.5%) achieved progression and 128 (14.1%) failed to reach any sort of progression. Multiple logistic regression showed that, for the main variable “team possession type”, direct attacks and counterattacks were three times more effective than elaborate attacks for producing a score-box possession (P < 0.05). Team possession originating from the middle zones and playing against less than six defending players (P < 0.001) registered a higher success than those started in the defensive zone with a balanced defence. When the team was drawing or winning, the probability of reaching the score-box decreased by 43 and 53 percent, respectively, compared with the losing situation (P < 0.05). Accounting for opponent interactions and situational variables is critical to evaluate the effectiveness of offensive playing tactics on producing score-box possessions.  相似文献   

An objective method for depicting team performance in elite professional rugby union     

Nicholas M. P. Jones  Nic James  Stephen D. Mellalieu 《Journal of sports sciences》2013,31(7):691-700

Abstract

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   

Utilization of communications network potential: Public practices and effects     

Vagia Kyriakidou  Christos Michalakelis  Thomas Sphicopoulos 《Government Information Quarterly》2012

Technological adoption, with an emphasis on Information and Communications technology (ICT), is considered as a decisive factor for the overall development of each country. For this, the European Commission (EC) has launched a number of policy frameworks, aiming to enhance the usage and to improve the quality of European citizens' lives. However and so far, the results are still below the initial goals. Thus, the EC recently decided to set some additional targets, in order to facilitate a wider adoption of information services and maximize economical and societal benefits.  相似文献   

“ 政府绩效评估”与“政府绩效管理”的异质与耦合     

臧志彭 《中国科技资源导刊 (中国信息导报)》2012,(5):40-43

政府绩效评估是按照符合人民价值理念的理想政府的标准,对现实政府进行价值评估与定位。政府绩效管 理是对政府特定时期决策目标的逻辑分解,并通过绩效计划、过程管理、考核评价以及结果应用实现政府决策落实、 行政效能提升的改善过程。二者具有一定的异质性。借鉴耦合思想,发挥绩效评估的思想,加强绩效指标体系的顶层 设计,运用绩效管理的循环改善机制促进目标落实,最终即可建立人民满意、高绩效的政府。  相似文献   

对高等教育统计指标设置的一些思考     

梁娉婷 《黄山学院学报》2012,14(4)

高等教育统计是高校实行科学管理的重要手段。是制定教育政策、编制教育发展规划的重要依据。随着教育体制改革的不断深化和办学形式的多样化,统计指标的界定出现了不少新问题,积极解决目前高等教育统计指标设置和解释中存在着的一些不足,才能为高等教育的发展提供保障。  相似文献   

关于科技期刊编辑初审量化指标体系的讨论     

朱大明 《编辑学报》2012,24(2):196-197

建立科技期刊论文初审的量化指标体系是提高审稿质量的一种新的思路和操作模式,但将"作者指标""学科指标""引用指标"作为编辑初审量化指标明显不当。应根据论文内容及其表达的基本要素建立相应的量化评价指标。  相似文献   

对体质与健康体适能测试指标的比较启示     

郭静  吴玉华 《福建体育科技》2012,31(1):23-24,32

近年我国对体适能的研究成为热潮,其中以健康体适能测试作为评价身体健康标准与以体质测试作为评价标准成为当前我国对国民健康评定的两股主流势力。通过对体质测试指标与健康体适能的测试指标进行比较分析,认为体质的测试指标与健康体适能的测试指标都不能体现"完全健康"的范畴;在身体健康测试指标中,健康体适能相对于体质更能准确、有效的反映人体的健康状况;但也必须加入心理健康、社会健康、情绪健康、精神健康的测试指标,健康体适能才能更好的体现人体的"完全健康"水平。  相似文献   

战略性新兴产业技术特性评价指标与标准     

黄鲁成  王亢抗  吴菲菲  苗红  娄岩 《科学学与科学技术管理》2012,33(7):103-108

新兴技术及技术密集程度是战略性新兴产业的重要特性之一,确立战略性新兴产业技术特性的定量评价标准对于识别和发展我国战略性新兴产业具有重要意义。如何衡量战略性新兴产业的技术特性并对其进行评价,目前还未见到相关成果。提出用R&D人员比例、R&D投入强度和每百名R&D人员发明专利申请数3个指标,描述战略性新兴产业的技术特性,并提出了具体的评价指标与标准。在此基础上提出了提升战略性新兴产业技术特性的对策。  相似文献   

基于软系统方法的企业技术创新绩效评价     

郝琦  罗亚非 《科技管理研究》2012,32(3):26-30

应用软系统方法,将企业技术创新视为一个动态的、开放的系统,按照软系统的7步骤法建立企业技术创新系统模型,在此模型上应用软系统中的3E理论,建立企业技术创新绩效评价指标体系,并结合我国大中型工业企业2000年至20009年相关科技活动数据进行实证分析。  相似文献