中国女排与世界女排强队比赛回合特点研究

以参加第八届世界杯女排赛中国女排进行的 11场比赛为统计样本 ,分析新规则下女排比赛的回合特点 ,以及中国女排与世界女排强队在不同回合比赛所表现出的实力及存在的问题 ,以期增强排球比赛的精彩性和提高中国女排不同回合比赛的能力     

悉尼奥运会中国女排与世界强队得分方式的比较分析

本通过中国女排在悉尼奥运会上与世界强队的四场比赛中，进攻、拦网、发球、对方失误四大得分方式，进行全程的录像统计，结合献资料，分析了中国女排与世界强队在得分方式上的差距。     

2007年世界女排大奖赛总决赛中国女排综合实力分析

中国女排在2007年世界女排大奖赛上以四胜一负的佳绩获得了亚军。以2007年世界杯女排大奖赛中国女排与世界强队的几场重要比赛为研究对象，分析发现中国女排最主要的制胜因素是稳定的一传和优秀的防守。     

中外优秀女子排球运动员跳发球空中击球动作的运动学分析

1前言20世纪90年代以后,随着新规则的实施,跳发球技术得到了飞速发展,因其冲跳距离长、击球点高、力量大、球速快、旋转强,已成为世界女排强队普遍采用的进攻性发球之一和得分主要手段。目前,中国女排在跳发球技术上,无论是在比赛中使用的人数还是使用的次数、效果方面与世界强     

第11届女排世界杯中国队与世界强队一攻技战术效果研究

以排球比赛的一攻为切入点,运用录像观察、数理统计等方法,对2011年第11届女排世界杯中国队与世界强队比赛的一攻数据进行了统计和分析。结果表明:中国女排在面对世界强队的高质量发球时,其总体的接发球效果好于对手;二传传球的隐蔽性不及世界强队,分配球战术中,后排攻战术的分配球比例少于欧美强队,在接发球到位的情况下,快攻战术球的分配率高于世界强队;一攻进攻中,快攻是中国女排主要的得分方式,但得分效果差于交手的美国队与巴西队,而在前排强攻和后排攻方面,中国女排表现出前排强攻不强、后排进攻乏力的弱点。     

从雅典奥运会析我国女排的发展对策

通过雅典奥运会各国女排的表现，阐述了世界女排的发展格局；通过与其他强队的比较，阐述了目前中国女排的优势与不足，并为中国女排备战2008年北京奥运会提出一些对策和建议。     

中国女排与2007年世界杯前三名女排队员非技术因素的对比分析

运用文献资料和数据统计等方法对中国女排和2007年世界杯前三名女排队伍的年龄、身高、体重、扣球高度和拦网高度等非技术因素进行统计比较与分析，结果发现：中国女排队员年龄结构不合理；身高指标与其他强队相差不大，但在体重指标上中国女排存在一定差距；扣球高度和拦网高度上已达到世界强队水平。     

''02世锦赛中国女排强攻效果探析

对中国女排在此次世锦赛中的强攻效果进行分析。找出中国女排与世界部分强队在强攻上是否存在差距和不足,以期为提高中国女排今后的科学训练水平和比赛成绩提供参考依据。     

从世界女排强队起伏沉沦看中国女排2008年奥运会的夺冠之路

选取巴西、俄罗斯、意大利和中国队为研究对象,对近20年来这4支世界女排强队起伏沉沦的分析,找出保持世界强队所应具有的技战术特点,为中国女排在2008年奥运会夺取冠军提供建议。     

对乒乓球直板横打几项新技术的探索

采用文献资料、录像统计等方法,对中国女排2004年奥运会和2005年7月大奖赛总决赛的比赛数据及比赛情况进行比较分析,探讨中国女排与世界强队的优势和差距。1．中国女排的优势     

Carbohydrate ingestion improves endurance performance during a 1h simulated cycling time trial

This study examined the effect of carbohydrate ingestion on metabolic and performance-related responses during and after a simulated 1h cycling time trial. Eight trained male cyclists (VO 2 peak = 66.5ml kg -1 min -1 ) rode their own bicycles mounted on a windload simulator to imitate real riding conditions. At a self-selected maximal pace, the cyclists performed two 1h rides (separated by 7 days) and were fed either an 8% carbohydrate or placebo solution. The beverages were administered 25 min before (4.5ml kg -1 ) and at the end (4.5ml kg -1 ) of the ride. With carbohydrate feeding, plasma glucose tended (P = 0.21) to rise before the time trial. Compared with rest, the plasma glucose concentration decreased significantly (P < 0.05) at the end of both rides, with no statistically significant difference being observed between treatments. Thereafter, plasma glucose increased significantly (P < 0.05) at 15 and 30 min into recovery, and was significantly higher at 30 min during the carbohydrate trial compared with the placebo trial. No significant changes in plasma free fatty acids were observed during the ride. However, a significant increase (P < 0.05) in free fatty acids was found at 15 and 30 min into recovery, with no difference between trials. Mean power output was significantly (P < 0.05) greater during the carbohydrate compared with the placebo trial (mean - S.E.: 277-3 and 269-3W, respectively). The greater distance covered in the carbohydrate compared with the placebo trial (41.5-1.06 and 41.0–1.06km, respectively; P < 0.05) was equivalent to a 44s improvement. We conclude that pre-exercise carbohydrate ingestion significantly increases endurance performance in trained cyclists during a 1h simulated time trial. Although the mechanism for this enhancement in performance with carbohydrate ingestion cannot be surmised from the present results, it could be related to a higher rate of carbohydrate oxidation, or to favourable effects of carbohydrate ingestion on the central component of fatigue.     

Science and medicine of rowing: A review

The biology and medicine of rowing are briefly reviewed. Effort in a 2000 -m race is about 70% aerobic. Because the boat (and in some instances a cox) must be propelled, successful competitors are very tall, with a large lean mass and aerobic power. Large hearts may lead to erroneous diagnoses of a cardiomyopathy. Large respiratory minute volumes must be developed by chest muscles that are also involved in rowing. The vital capacity is typically large, and breathing becomes entrained. Expiration cannot be slowed relative to inspiration (as normally occurs at high rates of ventilation) and the limiting flow velocity may be reached, with the potential for airway collapse. Performance is strongly related to the power output at the ‘anaerobic threshold’, and lactate measures provide a guide to an appropriate intensity of endurance training. Peak blood lactate levels are higher in males (commonly 11–19 mmol·l -1 and occasionally as high as 25 mmol·l -1) than in females (9–11 mmol·l -1), probably because males have a greater muscle mass in relation to blood volume. The skeletal muscles are predominantly slow twitch in type, developing an unusual force and power at low contraction velocities. Many rowers have a suboptimal diet, eating excessive amounts of fat. Lightweight rowers also have problems of weight cycling. Aerobic power and muscle endurance often change by 10% over the season, but such fluctuations can be largely avoided by a well-designed winter training programme. Injuries include back and knee problems, tenosynovitis of the wrist and, since the introduction of large blades, fractures of the costae.     

Identifying home advantage in international tennis and golf tournaments

A regression analysis of competitors' tournament results in relation to their world rankings was proposed to identify the effect of home advantage in international ‘grand-slam’ tennis and ‘major’ golf tournaments. The results provided little evidence of home advantage in either the grand-slam tennis or the golf tournaments held in 1993. The only possible evidence of home advantage was found in the Wimbledon tennis and the US Open golf championships. Even these findings can be explained, at least partially, by (1) the availability of information concerning the low world rankings of the British tennis players competing at Wimbledon, and (2) selective entry, allowing only the world's top-ranked foreign golfers into the US open golf tournament. In both cases, the lower ranking home competitors have a greater opportunity to perform above their anticipated world rankings. Therefore, provided entry into tennis and golf tournaments is truly ‘open’ to both the host nation's representatives and foreign competitors alike, home advantage does not appear to be a major factor influencing the competitors' performance in such competitions. These findings may be explained by the relatively objective nature of the scoring systems used in tennis and golf, unlike the subjective influence of refereeing decisions on the results of team-games such as soccer.     

全国城乡学生体质20年动态分析

基于1985、1995和2005年全国学生体质调研数据,对各时期我国城乡学生形态、机能、体能发展水平进行系统地定量研究,动态分析20年全国城乡学生体质发展的特点与规律。主要研究结果：（1）近20年城乡学生生长发育持续提前,城市学生各项形态指标生长水平高于乡村,身高城乡差距缩小,体重、胸围城乡差距加大;（2）城市学生肺活量水平高于乡村,城乡学生肺活量20年持续下降,前10年乡村学生下降快、后10年城市学生下降快;（3）乡村学生800m、1000m跑水平高于城市,城市女生50m跑、仰卧起坐水平高于乡村,其他素质城乡学生水平波动较大;（4）城市女生50m跑20年持续下降,城乡学生800m和1000m跑、城市学生50m×8往返跑20年加速下降,其他素质20年间有增有降发展极不平稳。     

定向运动对大学生身心健康发展的实践研究

采用测量、问卷调查、数理统计等方法,分析定向运动学习前后对大学生身心健康的影响.结果经T检验和x2检验且表明：定向运动不仅能增强学生体质健康水平,而且有助于学生的情绪调节,增强自信心与创新意识,培养勇敢顽强的意志品质,建立良好的人际关系,能有效地促进学生身心健康发展.为了全面提高大学生整体素质,积极实践,构建定向运动课内外一体化教学模式,进行定向运动课程模块化教学,以满足学生的多元化需求.     

我国体育市场管理法规研究

采用调查法和比较法对全国体育市场立法和管理现状进行调查,对部分较早出台并有一定代表性的省市的体育市场管理法规的立法和管理情况进行了研究,提出了体育市场管理立法和管理的原则、基本程序、措施及其一般模式,为规范全国体育市场管理提供参考依据。     

重新认识体育的社会关联

体育与政治之间存在一个悖论，体育的发展与经济实力之间没有直线相关，体育与教育部分重叠，体育与宗教最为近缘，体育可借用科学手段，体育的艺术禀性日益明显，体育与养生反映着两种人生观。     

上海社区体育竞赛参与者的特点探析

本文在专家访谈、问卷调查、数理统计和文献资料分析的基础上,探析了上海社区体育竞赛参与者的特点、参与者对社区体育赛事运作管理的看法等问题。在此基础上从引进社区体育赛事的志愿者、整合社区体育赛事的各种资源、开发社区体育竞赛的无形资产、组建非营利性的专业团队、规范社区体育赛事的服务管理等方面提出了进一步满足上海社区居民日益增长的体育竞赛参赛需求的对策与措施。     

对全面把握游泳训练环节的探讨

从系统观点出发,结合训练实践,对全面把握游泳训练环节进行探讨。认为应强化非智力因素在运动员多年训练中的作用,在育材全过程中不断选材,从整体上把握动态训练的全过程,把培养高水平运动员的整个过程置于一个严格的科学控制之下。     

我国优秀游泳运动员出发技术辅助训练的研究

为改进我国优秀游泳运动员的出发技术,采用观测和实验方法,通过拍摄运动员陆上和水下出发技术录像以及出发计时,对出发技术进行运动生物力学诊断和分析。在此基础上,根据运动员自身特点和不同泳姿提出相应的入水启动方式,并研制出发训练辅助器材,对出发预备姿势、腾起角度以及飞行远度和入水角进行控制。实践证明:这是一种快捷、有效的出发技术辅助训练方法。