我国优秀女子举重运动员主要专项辅助动作成绩与竞赛动作成绩相关分析     

胡贤豪  林振敢 《上海体育学院学报》2006,30(6):41-44,50

采用文献资料、专家访谈、问卷调查、数理统计等研究方法,对我国优秀女子举重运动员主要专项辅助动作成绩与竞赛动作成绩进行相关研究。结果显示:主要专项辅助动作成绩与竞赛动作成绩具高度显著性相关;高抓、高翻借力推、宽硬拉成绩与抓举成绩,下蹲翻半挺成绩与挺举成绩直接相关;高抓、高翻借力推、下蹲翻半挺成绩共同作用影响抓举成绩;下蹲翻半挺、前深蹲成绩共同作用影响挺举成绩;主要专项辅助动作成绩受爆发力和绝对力量的影响。  相似文献   

我国竞技健美操规则的改变及其对运动技术发展的影响   总被引：3，自引：0，他引：3  

刘令姝 《北京体育大学学报》1995,(2)

为进一步促进我国竞技健美操运动技术水平的提高，对我国1986～1994年期间5次颁布的竞技健美操规则进行了研究；结合多年参加该项目训练、比赛的体会，分析了我国竞技健美操运动技术发展的状况，并提出相应的训练手段。  相似文献   

中国两次新图书馆运动比较研究   总被引：2，自引：0，他引：2  

韩月萍 《图书馆建设》2008,(3):29-31

中国20世纪的新图书馆运动与21世纪的新图书馆运动是对我国图书馆事业的发展方向、服务方式、服务理念产生深远影响的两次图书馆运动。这两次新图书馆运动在其发生的背景、推动我国图书馆人文精神和研究方面所做的贡献及其对中国图书馆理论与实践所产生的意义等方面都各自有其独特之处。  相似文献   

新中国初期的高校师生阅读     

徐小丽 《图书与情报》2006,(1):55-59

建国初期，教育的阶级性和功利性成为高等教育的铁律，政治运动和政治性学术批判，对高校师生阅读产生了重大影响，红色苏联文化作品成为当时主要课外阅读时尚。  相似文献   

The “Free Press” of Unionized Journalists and Students     

Errol Salamon 《Journalism Practice》2018,12(5):565-584

This paper outlines a history of the union organizing of the American Newspaper Guild at Thomson Newspapers’ Peterborough Examiner in Canada from 1968 to 1969. It examines the communication tools that union members used to facilitate this labor organizing and “bite back” at the profitable Thomson chain. Peterborough newsworkers went on strike from November 1968 to April 1969 over union recognition. During the strike, the union members built an unprecedented alliance with Ontario university students, collaboratively launching a strike newspaper called the Peterborough Free Press. Expanding on the concept of temporary labor convergence, this paper considers how strike newspapers can be seen as a form of alternative journalism that newsworkers use as a campaigning tool to communicate their struggles to the public and put pressure on news corporations to bargain with them. This case study is situated in the local institutional contexts of labor relations at the Peterborough Examiner and the news industry in Peterborough, where Thomson Newspapers had a media monopoly. It is based on labor standpoint and signal juncture analyses of union archival documents and newspaper content. The research ultimately suggests that newsworkers should not only focus on communication tools but also build bridges with community members.  相似文献   

运动诱导神经发生的相关研究     

张宪亮  徐波 《体育成人教育学刊》2011,27(5):35-39

成年哺乳动物神经发生仅发生在侧脑室的室管膜下层和海马齿状回的颗粒细胞下层两个区域。综述了检测神经发生的主要方法,从神经递质、生长因子、营养因子等方面探讨了运动诱发神经发生的相关机制,并分析了运动诱发的神经发生对学习记忆能力的意义。  相似文献   

Fatigue increases ankle sprain risk in badminton players: A biomechanical study     

Alexis Herbaut  Julien Delannoy 《Journal of sports sciences》2020,38(13):1560-1565

ABSTRACT

Ankle sprains are the most common injury in regular badminton players and usually occur at the end of a match or training. The purpose of the present study was to examine the influence of fatigue produced by badminton practice on the lower limb biomechanics of badminton players. It was hypothesized that fatigue induces ankle kinematic and lower leg muscle activity changes which may increase the risk of ankle sprain. Ankle kinematics, ankle kinetics and muscles activities of 17 regular badminton players were recorded during lateral jumps before and after an intense badminton practice session. Post-fatigue, ankle inversion at foot strike and peak ankle inversion increased (+2.6°, p = 0.003 and +2.5°, p = 0.005, respectively). EMG pre-activation within 100 ms before foot landing significantly decreased after fatigue for soleus (?23.4%, p = 0.031), gastrocnemius lateralis (?12.2%, p = 0.035), gastrocnemius medialis (?23.3%, p = 0.047) and peroneus brevis (?17.4%, p = 0.036). These results demonstrate impaired biomechanics of badminton players when fatigue increases, which may cause a greater risk of experiencing an ankle sprain injury.  相似文献   

定向运动核心理念在高校体育教学中的时效性研究     

房施龙 《宁夏师范学院学报》2014,(6):106-108

针对定向运动核心理念教学在高校体育教学中的方法及形式的时效性、指导思想的时效性以及内容的时效性进行研究,并提出提高定向运动核心理念教学的优化措施.  相似文献   

Effects of pairs of problems and examples on task performance and different types of cognitive load     

《Learning and Instruction》2014

In two studies, we investigated whether a recently developed psychometric instrument can differentiate intrinsic, extraneous, and germane cognitive load. Study I revealed a similar three-factor solution for language learning (n = 108) and a statistics lecture (n = 174), and statistics exam scores correlated negatively with the factors assumed to represent intrinsic and extraneous cognitive load during the lecture. In Study II, university freshmen who studied applications of Bayes' theorem in example–example (n = 18) or example–problem (n = 18) condition demonstrated better posttest performance than their peers who studied the applications in problem–example (n = 18) or problem–problem (n = 20) condition, and a slightly modified version of the aforementioned psychometric instrument could help researchers to differentiate intrinsic and extraneous cognitive load. The findings provide support for a recent reconceptualization of germane cognitive load as referring to the actual working memory resources devoted to dealing with intrinsic cognitive load.  相似文献   

苏区少年先锋队述略     

邵雍 《江西师范大学学报(哲学社会科学版)》2007,40(4):80-87

土地革命时期的少年先锋队是一个革命青年的半武装组织。在中国共产党、共青团和苏维埃政府的关心下,少年先锋队领导苏区青年为争取自身阶级利益,保卫苏维埃政权,努力学习知识,并积极投身于革命运动中。他们参与阶级斗争,帮助政府实现各项政治经济政策;开展拥军优属活动,帮助工农群众进行生产建设;训练和培养了大批红军后备力量,帮助红军、赤卫军、游击队保卫苏区政府和人民的安全,并为前线输送了大量优秀战士。在近代中国青年运动史上,少年先锋队组织有着不可磨灭的伟大贡献。  相似文献