目标控制训练法与射击训练   总被引：2，自引：0，他引：2  

贝恩渤  邓廷楠 《武汉体育学院学报》2000,34(2):86-89

目标控制训练法是一种以明确的目标任务,引导、激发运动员的自觉性与能动性,达到培养和提高运动员综合能力的一种训练过程与方法。它运用了系统思想、控制论、管理学和运动心理学的许多原理,结合了我国射击训练的实践经验,经实践证实是一种切实可行具有活力与优势的射击训练方法。  相似文献   

体育活动作为考试应激的应付方法研究     

李林 《四川体育科学》2003,(1):21-23

选择特定的考试应激情境，使用心境状态量表（POMS）和锻炼感觉量表（EFI），通过实验比较的方法，目的为研究体育活动作为应付方法降低考试应激的效果，实验结果表明，参与体育活动能够有效地降低考试后产生的应激反应，改善心境状态；体育活动时心境状态的改善与运动愉快感的产生之间存在显著意义的相关关系。  相似文献   

信息查寻活动中的合作行为与合作式信息查寻   总被引：9，自引：0，他引：9  

褚峻  张咏  巢乃鹏 《大学图书馆学报》2003,21(4):35-39

指出了传统信息查寻和情报检索研究只针对个体用户的行为,忽视查寻的社会情景以及用户之间的相互关系的问题。对信息查寻和情报检索中的合作行为进行了研究,介绍了合作系统的发展状况,并对今后的发展趋势进行了分析。  相似文献   

用多元智能理论设计综合实践活动课     

肇洋 《宁波广播电视大学学报》2004,2(3):65-68

本文在介绍多元智能理论以及教改新增的综合实践活动课的基础上，分析了多元智能理论与综合实践活动课的关系，并通过一个案例提出用多元智能理论设计综合实践活动课的方法。  相似文献   

电子效应对有机反应的影响     

许琳 《喀什师范学院学报》2003,24(6):48-51

讨论了电子效应对有机化学反应方向、活性及历程等方面的影响。  相似文献   

Validity of SenseWear® Armband v5.2 and v2.2 for estimating energy expenditure     

Dharini M Bhammar  Brandon J Sawyer  Wesley J Tucker  Jung-Min Lee 《Journal of sports sciences》2016,34(19):1830-1838

We compared SenseWear Armband versions (v) 2.2 and 5.2 for estimating energy expenditure in healthy adults. Thirty-four adults (26 women), 30.1 ± 8.7 years old, performed two trials that included light-, moderate- and vigorous-intensity activities: (1) structured routine: seven activities performed for 8-min each, with 4-min of rest between activities; (2) semi-structured routine: 12 activities performed for 5-min each, with no rest between activities. Energy expenditure was measured by indirect calorimetry and predicted using SenseWear v2.2 and v5.2. Compared to indirect calorimetry (297.8 ± 54.2 kcal), the total energy expenditure was overestimated (P < 0.05) by both SenseWear v2.2 (355.6 ± 64.3 kcal) and v5.2 (342.6 ± 63.8 kcal) during the structured routine. During the semi-structured routine, the total energy expenditure for SenseWear v5.2 (275.2 ± 63.0 kcal) was not different than indirect calorimetry (262.8 ± 52.9 kcal), and both were lower (P < 0.05) than v2.2 (312.2 ± 74.5 kcal). The average mean absolute per cent error was lower for the SenseWear v5.2 than for v2.2 (P < 0.001). SenseWear v5.2 improved energy expenditure estimation for some activities (sweeping, loading/unloading boxes, walking), but produced larger errors for others (cycling, rowing). Although both algorithms overestimated energy expenditure as well as time spent in moderate-intensity physical activity (P < 0.05), v5.2 offered better estimates than v2.2.  相似文献   

有机气体麻醉活性的QSAR研究     

刘天宝  彭艳芬  陈大勇 《池州师专学报》2008,(3):64-65

应用分子力学方法MMP和半经验量子化学AH1法得到了18种有机气体的优势构象,利用量子化学算法和分子图形学技术获得电子结构、几何结构和拓扑结构参数,并将这些参数与有机气体的麻醉活性参数相关联。结果表明：有机气体的麻醉活性与分子的极化率和辛醇／水分配系数的相关性较好,成功地建立了18种有机气体的构效关系武。  相似文献   

对武汉市儿童体育锻炼的调查与分析   总被引：1，自引：0，他引：1  

朱欣华  韩建阳 《福建体育科技》2009,28(4):21-23

本文通过文献资料法、访谈法、问卷调查法、数理统计法等研究方法，对武汉市儿童体育锻炼的现状进行了调查和研究。结果显示：沉重的学习压力影响了儿童体育锻炼的时间、活动项目，降低了活动兴趣；男生和女生最喜欢的项目是羽毛球和跳绳，但同时也受校园体育锻炼、体育课教学内容及玩伴的影响；现阶段体育设施相对缺乏，场馆管理混乱也成为儿童参与体育锻炼的阻碍。针对存在的问题提出相应的对策，旨在提高儿童的身体素质。  相似文献   

网络游戏对大学生参与体育锻炼的影响     

刘晓云  黄毅群 《福建体育科技》2009,28(3):50-51,54

文章采用问卷调查法、访谈法对泉州医学高等专科学校学生玩网格游戏和课外体育锻炼的情况进行调查，分析网络游戏对学生参与课外体育锻炼的影响及原因，并提出建议，为我校今后进行学生管理及发展学生体育的决策提供参考。调查表明：学生玩网络游戏的比率高，玩的时间比较长，而参与课外体育锻炼的人数比率小，锻炼项目集中，锻炼次数少。经常玩网络游戏的学生参与锻炼的次数和时间都低于平均值。  相似文献   

Division,result and score margin alter the physical and technical performance of elite wheelchair tennis players     

Barry S. Mason  Rienk M.A. van der Slikke  Michael J. Hutchinson  Vicky L. Goosey-Tolfrey 《Journal of sports sciences》2020,38(8):937-944

ABSTRACT

This study determined the physical and technical demands of elite wheelchair tennis (WT) match-play, how the demands differed between divisions (Men, Women, Quad) and the effect that set result and score margin had on these demands. Seventeen WT players were monitored during a singles competition. Physical measures of performance were analysed using an indoor tracking system and inertial measurement units. Technical measures of performance were examined using video analysis. Physical measures of performance differed by division (Men > Women > Quad) for most parameters. Rallies were longer during Men’s (P = 0.027) and Women’s (P = 0.004) matches compared to Quad’s and fewer shots were hit off 2 bounces in Men’s matches compared to Women’s and Quad’s (P ≤ 0.026). High-speed activity (HSA) increased during losing sets (P = 0.043). Most physical measures of performance increased by moderate to large effects during sets with a small score margin (≤3 games differential). Mean speed and HSA were similar during losing sets, regardless of margin, but decreased (large effects) when winning by a large margin. This study demonstrated the physical and technical demands that elite WT players need to be prepared for and how situational factors can influence these demands.  相似文献