中国男篮后卫与世界强队后卫攻守能力比较——从后卫角度析中国男篮世锦赛失利原因     

王颖  蒲章超 《体育科技文献通报》2007,15(12):119-120

采用数量统计结合录像分析的方法，从后卫角度对2002年第14届男篮世锦赛中国队失利的原因进行分析。结果显示，与世界强队后卫相比，中国男篮后卫队员防守时“抢断球”意识和能力与对手存在较大差距；进攻方面，在攻击性很强的紧逼式防守面前，中国男篮后卫队员突破到2分区内进行攻击或主动造犯规的能力、妙传助攻能力，以及参与“抢进攻篮板球”的积极性等方面存在较大差距。  相似文献   

Große Fußballspiele — Hochfeste politischer Massen?     

Nils Havemann 《Sportwissenschaft》2007,37(4):394-402

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我国青年女排运动员主要身体形态和专项运动素质特征分析     

金学斌  刘瑛  张志斌  盖洋 《西安体育学院学报》2007,24(1):94-97

对参加2006年海埂训练基地集训的天津、辽宁、上海等9支青年女子排球队83名运动员进行身体形态和专项运动素质测试,对所测数据进行分析、对比。结果表明,我国青年女排运动员的平均身高、体重已基本达到成年国家队队员水平,但专项运动素质方面与成年运动员还存在很大差距,有待提高。  相似文献   

Book Notices     

Steven French 《Metascience》2007,16(1):175-177

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健脾补糖对过度训练脾虚大鼠骨骼肌GLUT4和P38活性的影响   总被引：2，自引：0，他引：2  

衣雪洁  张庆荣  于莹 《北京体育大学学报》2007,30(9):1212-1215

为了探讨健脾补糖对过度训练大鼠骨骼肌的糖转运和MAPK转导通路中P38活性的影响.通过6周递增大负荷游泳训练,观察过度训练和健脾补糖对胃肠的吸收功能,骨骼肌的糖转运、储备和P38活性的影响.研究表明:1)过度训练脾虚的大鼠的骨骼肌MAPK信号转导系统的P38途径虽然被激活.但骨骼肌的葡萄糖转运和糖储存被低血糖和胰岛素所抑制.因此没有明显改善骨骼肌的肌糖原储备.2)健脾补糖从改善胃肠功能、增加能源物质的摄入、提高抗氧化能力等多靶点激活了P38,使骨骼肌对葡萄糖的转运速度与合成速度均加快,在末次运动后24 h就使肌糖原达到了明显的超量恢复状态.  相似文献   

Describing the plastic deformation of aluminium softball bats   总被引：1，自引：1，他引：0  

Eric Biesen  Lloyd Smith 《Sports Engineering》2007,10(4):185-193

Hollow aluminium bats were introduced over 30 years ago to provide improved durability over wooden bats. Since their introduction, however, interest in hollow bats has focused almost exclusively around their hitting performance. The aim of this study was to take advantage of the progress that has been made in predicting bat performance using finite elements and apply it to describe bat durability. Accordingly, the plastic deformation from a ball impact of a single-wall aluminum bat was numerically modelled. The bat deformation from the finite-element analysis was then compared with experiment using a high-speed bat test machine. The ball was modelled as an isotropic, homogeneous, viscoelastic sphere. The viscoelastic parameters of the ball model were found from instrumented, high-speed, rigid-wall ball impacts. The rigid-wall ball impacts were modelled numerically and showed good agreement with the experimentally obtained response. The strain response of the combined bat-ball model was verified with a strain-gauged bat at intermediate ball impact speeds in the elastic range. The strain response of the bat-ball model exhibited positive correlation with the experimental measurements. High-speed bat-ball impacts were performed experimentally and simulated numerically at increasing impact speeds which induced correspondingly increased dent sizes in the bat. The plastic deformation from the numerical model found good agreement with experiment provided the aluminium work hardening and strain rate effects were appropriately described. The inclusion of strain rate effects was shown to have a significant effect on the bat deformations produced in the finite-element simulations. They also helped explain the existence of high bat stresses found in many performance models.  相似文献   

New Initiatives: Literature Review Manuscripts And The Appointment Of Ernest T. Pascarella As An Associate editor     

John C. Smart 《Research in higher education》2007,48(2):137-139

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Editorial     

Ian D. Selwood 《Education and Information Technologies》2007,12(4):189-190

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对艺术院校进行体育俱乐部教学模式的思考     

朱瑛 《福建体育科技》2007,26(3):44-46

根据艺术院校体育教学的现状和其特殊性,建议将体育课教学和艺术类的其它课程紧密有机地联系起来,使体育教学更好地为艺术服务,提出了在艺术院校进行体育俱乐部的教学模式,并对建立俱乐部所涉及的问题进行了分析研究,提出了可行性建议。  相似文献   

Sportpädagogik im Spannungsfeld gesellschaftlicher Erwartungen,wissenschaftlicher Ansprüche und empirischer Befunde     

Ralf Sygusch  Miriam Kehne 《Sportwissenschaft》2007,37(4):467-472

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