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从第8届女子排球世界杯比赛探讨女子排球比赛得失分因子及规律 总被引：6，自引：1，他引：5
通过对第8届女子排球世界杯比赛的录像统计，分析了女子排球比赛得失分因子和基本规律，揭示了排球运动各战术系统中的内在联系和制胜因素。 相似文献
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仇军 《沈阳体育学院学报》1985,(1)
世界女子排球锦标赛是世界女子排坛规模最大的比赛,它的历史可以追溯到50年代初期国际排球联合会成立的年代;关于世界女子排球锦标赛历届比赛的情况简单介绍如下。第一届 1952年,在莫斯科举行了第一届世界女子排球锦标赛,有8个国家参加比赛,结果苏联女排获得冠军,获得2—8名的国家是:2波兰、3捷克斯洛伐克、4保加利亚、5罗马 相似文献
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我国女子撑杆跳高成绩的近期预测与展望 总被引：1，自引：0，他引：1
对女子撑杆跳高项目的发展进行了预测。研究指出，2008年我国女子撑杆跳高项目，可望逼近世界第8名；从奥运会设项至今，我国女子撑杆跳高运动技术水平走出了一条小角度缓慢提高之路，与世界水平呈差距拉大之势。并提出相应的对策。 相似文献
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“奥达杯”汇聚全国女子桥牌精英
汇聚了全国所有女子桥牌精英的奥达杯全国女子桥牌精英赛6月5日在辽宁沈阳开幕,来自全国各地8支代表队齐聚沈阳,争夺总奖金70万元、其中冠军奖金高达18万元的大奖。 相似文献
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采用文献资料法、专家调查法和数理统计法,对我国25名8～9岁女子体操运动员力量素质进行研究,筛选出对8～9岁女子体操运动员专项成绩有显著影响的力量素质指标,运用灰色关联方法确定力量素质指标的权重系数,采用累进积分和百分位数法制定8～9岁女子体操运动员力量素质评分标准和等级标准。 相似文献
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我国女子竞技体育优势项目群及其实力研究 总被引：1，自引：1，他引：0
通过对女子优势项目各单项进行聚类分析,了解我国女子竞技体育优势项目群及其竞技实力的特点,为其它潜优势项目及弱势项目的发展提供借鉴依据。通过专家访谈法等对我国5届奥运会女子获奖大项进行分析,认为我国女子竞技体育优势大项是举重、乒乓球、射击、跆拳道、体操、田径、跳水、游泳8个大项,并形成了以技能主导类为项群的女子项目群优势。 相似文献
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夏冬 《沈阳体育学院学报》2013,32(4)
采用文献资料和数理统计等方法,对近8届奥运会田径比赛获得前8名的中国运动员成绩及项目分布特点进行研究.结果:近8届奥运会中国田径运动员均获得奖牌,男子运动员获得前8名成绩的人数和项目数量均少于女子运动员.径赛项目男子110m栏、女子中长距离跑竞争实力较强;田赛项目女子投掷项目成绩突出,铅球、铁饼、链球均具备冲击奖牌或金牌的实力;公路赛项目男女20km竞走竞技水平较高,女子马拉松项目发展迅速;全能赛项目有待突破.确保女子运动员成绩稳步提升与促进男子运动项目的发掘是中国田径未来发展的趋势;加强后备人才贮备、提升运动员比赛能力、有针对性的科学研究是保证中国田径可持续发展的重要因素. 相似文献
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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. 相似文献
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Roy J. Shephard 《Journal of sports sciences》2013,31(7):603-620
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. 相似文献
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Alan M. Nevill Roger L. Holder Andrew Bardsley Helen Calvert Stephen Jones 《Journal of sports sciences》2013,31(4):437-443
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. 相似文献
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许良 《体育科技文献通报》2011,19(2):1-4
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。 相似文献
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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. 相似文献
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重新认识体育的社会关联 总被引：3，自引：1，他引：2
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。 相似文献
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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。 相似文献
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对全面把握游泳训练环节的探讨 总被引：4，自引：0，他引：4
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。 相似文献