教师发展阶段理论综述及发展水平模型的构建     

郭光华  吴灵维 《重庆第二师范学院学报》2011,24(5):61-64

一、研究源起 教师的专业成熟要经过一个长期的发展过程,从一个新教师成长为一个合格的、优秀的教师乃至知名的教育家,不是一蹴而就的,就专业成熟的过程而言,需要经历一个发展阶段。因此,对教师成长的周期和规律的研究,有助于为教师指明个人的专业发展道路,为教师的专业学习和训练提供需要的基本内容。  相似文献   

基于PSO和多元线性回归的奥运会奖牌预测分析     

秦瑞瑞 《实验室研究与探索》2011,(10)

针对传统奥运会成绩预测模型中存在的不足,提出一种将PSO和多元线性回归分析相结合的预测模型。分析多元线性回归和PSO算法后,结合体育比赛的特点,通过PSO优化迭代计算,确定奖牌统计模型中各回归系数,建立了奥运会参赛国成绩与回归系数之间复杂的非线性关系。利用Matlab对建立奖牌模型进行了验证,预测精度高。  相似文献   

我国优秀青少年男排运动员专项体能特征的评价研究     

李〓宁  罗〓军  李立敏 《广州体育学院学报》2019,(6):73-77

运用文献资料、专家访谈、录像观察和数理统计等科研方法，以东京奥运周期中23届和24届羽毛球世锦赛成绩为主要依据，分析我国男子羽毛球发展现状及各国在各单项上的竞技实力，前瞻东京奥运会周期世界男子羽毛球竞争格局。结论如下：我国男子羽毛球队虽然取得了不少成绩，但也面临着人才青黄不接、年轻选手比赛经验不足，心理素质较差、技战术观念滞后等的尴尬局面。在竞争格局上，中国男子羽毛球队在世界羽坛上的优势地位遭到了严峻挑战，以丹麦为首的西方国家羽毛球队实力逐渐增强，亚欧之间的竞争力呈缩小之态势。在男子单打项目上，呈现出群雄逐鹿的局面；男子双打项目，则呈现出三足鼎立之势；混双方面，我国实力强劲，力压群雄，保持着较强的竞技水平。  相似文献   

Interorganisational conflict between national and provincial sport organisations within China’s elite sport system: Perspectives from national organisations     

《Sport Management Review》2019,22(5):667-681

In this article, the authors examine interorganisational conflict between provincial and national sport organisations in China. The authors theoretically ground the research in work related to interorganisational relationships and interorganisational conflict. The three case studies are artistic gymnastics, swimming, and cycling, and the authors conducted interviews with 11 staff from the relevant national-level sport organisations. Secondary data was sourced from official publications, websites, and influential domestic media. The key finding is that, whilst famed for its top-down bureaucratic system, there is considerable interorganisational conflict within the Chinese sport system. The extent and characteristics of the national-provincial conflict vary between sports. But there is also some consistency regarding the causes of the conflict and the measures adopted to mitigate the tension. Interorganisational conflict provides a useful heuristic for articulating and understanding the interorganisational relationships within the Chinese elite sport system and hence advances elite sport management research.  相似文献   

Did London 2012 deliver a sports participation legacy?     

《Sport Management Review》2019,22(2):276-287

Despite the increasing academic interest in the analysis of the Olympic legacy, there is a relative knowledge gap as far as sports participation legacy is concerned. The authors bridge this gap by analysing the short-term sports participation legacy of the London 2012 Olympic and Paralympic Games on the adult population in England. By using data from the Active People Survey and considering different sports participation variables and the effect of the economic climate, results demonstrate a positive association with participation from hosting the Games. Participation rates were adjusted to take into account seasonality and changes in the gross domestic product (GDP), accounting in this way for the effect of the recent economic recession. The biggest effect was observed in relation to frequent participation (at least three times per week for at least 30 min) in the year immediately after the Games. In 2014, the sports participation rates fell relative to 2013 but remained higher than pre-Olympic levels. The sport participation legacy of the Olympic Games appeared to have significant differences between socio-demographic groups.  相似文献   

Effects of different warm-up modalities on power output during the high pull     

Matthew John Barnes  Ashley Petterson  Darryl J. Cochrane 《Journal of sports sciences》2017,35(10):976-981

This study compared the effects of six warm-up modalities on peak power output (PPO) during the high-pull exercise. Nine resistance-trained males completed six trials using different warm-ups: high-pull specific (HPS), cycle, whole body vibration (WBV), cycle+HPS, WBV+HPS and a control. Intramuscular temperature (T_m) was increased by 2°C using WBV or cycling. PPO, T_m and electromyography (EMG) were recorded during each trial. Two high-pulls were performed prior to and 3 min after participants completed the warm-up. The greatest increase in PPO occurred with HPS (232.8 ± 89.7 W, P < 0.001); however, this was not different to combined warm-ups (cycle+HPS 158.6 ± 121.1 W; WBV+HPS 177.3 ± 93.3 W, P = 1.00). These modalities increased PPO to a greater extent than those that did not involve HPS (all P < 0.05). HPS took the shortest time to complete, compared to the other conditions (P < 0.05). EMG did not differ from pre to post warm-up or between modalities in any of the muscles investigated. No change in T_m occurred in warm-ups that did not include cycling or WBV. These results suggest that a movement-specific warm-up improves performance more than temperature-related warm-ups. Therefore, mechanisms other than increased muscle temperature and activation may be important for improving short-term PPO.  相似文献   

第31届奥运会男篮参赛球队攻防能力研究          下载免费PDF全文

金超 《河北体育学院学报》2017,31(3):63-70

采用文献资料法、录像观察法和秩和比法等,对参加31届奥运会男篮比赛球队的攻防能力进行综合量化评价,并将中国男篮与对手的攻防能力指标进行对比分析.结果显示:中国男篮进攻RSR处于D级,在得分、助攻、3分球命中率与罚球命中率上,与对手存在非常显著性差异,在失误数、进攻篮板、3分球出手数上与对手存在显著性差异;中国男篮防守RSR处于D级,防守篮板数比对手少,而失分和犯规数比对手多,且在犯规数上与法国男篮存在显著性差异;中国男篮攻防RSR处于E级;球队最终排名与进攻RSR值和攻防RSR值之间存在非常显著性相关.  相似文献   

我国优秀48kg女子摔跤运动员孙亚楠里约奥运会赛前训练特征研究     

白银川  刘卫军  许奎元  张莉清  赵林林  路海 《北京体育大学学报》2017,40(9):105-111

摘要：运用文献资料法、专家访谈法、数理统计法、实地跟踪法和指标测试法，对我国优秀48 kg女子摔跤运动员孙亚楠备战里约奥运会期间的训练时间、训练阶段划分、训练内容和方法、训练负荷和部分生理生化指标进行分析和研究，结果显示:1)赛前训练时间为10周，强化9周,调整1周；训练内容主要为体能和技战术，体能课77次,占46.7%，技战术课88次，占53.3%；训练方法体能主要以重复和循环训练法，技战术主要以完整训练法和模拟比赛法；负荷安排节奏性强且呈波浪型趋势；CK、BUN与血乳酸最大浓度值均表明达到了赛前理想状态。2)孙亚楠赛前第2周、第3周和第4周前半段CK和BUN数值呈现出居高不下的态势，身体仍存在疲劳，未能适应周训练强度的安排。结论:1）孙亚楠赛前训练安排较为合理，完成了赛前既定的目标与任务；2）赛前第2周、第3周和第4周前半段实际训练效果不佳，机体未能适应训练强度安排，可能与赛前训练内容中有氧和无氧训练比例的安排、赛前训练方法中有氧和无氧能力训练强度的控制有关。  相似文献   

奥运会男子篮球竞技格局与发展特征研究     

刘小明 《南京体育学院学报(社会科学版)》2016,(2):123-128

采用文献资料、ABC分类和数据统计等方法，以历届奥运会男篮比赛前8名国家为对象，旨在剖析奥运会男子篮球的竞技格局和发展特征。由于政治动荡，以及区域经济和文化的发展与变迁，在各个不同的历史阶段，世界男篮呈现出不同的竞技格局。但从整个历程来看，欧美对抗是一种常态，大洋洲和亚洲实力相当且与欧美有很大差距，非洲则一直处于落后地位，从未有任何国家进入过前8名。就各国实力而言，美国一枝独秀，共获得14次冠军，原苏联和前南斯拉夫在20世纪5080年代能与美国分庭抗争，西班牙、阿根廷和巴西具有超强实力。随着竞技篮球职业化和全球化的推进，使美洲“个人篮球”和欧洲“整体篮球”风格相互融合，奥运会男篮比赛的对抗性、观赏性和商业性更强，其重要地位也进一步得到凸显。当前处于低谷的中国男篮，只有加强优秀教练员和球员的储备，推进CBA联赛管理体制改革，才能实现竞技能力和竞赛成绩的新突破。  相似文献   

基于北京冬奥会视域下我国冰雪运动发展研究   总被引：2，自引：0，他引：2  

张瑞林 《吉林体育学院学报》2016,(1):1-4

北京2022年冬奥会的成功申办，为推动我国冰雪运动的发展迎来了新的契机。研究基于我国冰雪运动发展推进的意义与策略，通过对我国冰雪运动发展现状的分析，探寻目前所存在的问题和冬奥会的成功申办对我国冰雪运动的积极影响，进而从服务全民健身国家战略需要，推动冰雪产业与旅游产业协同发展等方面诠释了发展冰雪运动的意义，最后从发挥政府政策驱动作用、实现南北场地相对均衡、探索冰雪人才培养机制三个方面，提出推动我国冰雪运动发展的策略。  相似文献