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跨栏跑运动的发展是人类与自然界长期斗争的产物,伴随着刘翔在2004年雅典奥运会上夺得男子110米栏的冠军,跨栏跑运动在我国受到前所未有的追捧和重视。文章对跨栏跑的技术特点及其发展趋势进行研究,以使大家了解跨栏基本技术特征,为今后研究提供理论依据。 相似文献
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我国男子110m栏优秀选手刘翔的跨栏技术分析 总被引：13，自引：2，他引：13
以2003年在世界田径锦标赛和大奖赛洛桑站的前3名世界顶尖跨栏运动员的110m栏比赛全程跟踪录像进行分析计算,并对刘翔的跨栏步技术进行定点摄像及解析。刘翔与世界顶尖选手比较,分栏时间长而平均速度低。最高栏间速度低,而且次数少;栏间跑3步平均时间稍好;过栏腾空时间长,起跨角大,起跨距离稍远,下栏距离长,这揭示了刘翔的跨栏步技术存在问题,也是薄弱环节的所在,也是刘翔赶超世界先进水平的突破口。 相似文献
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跨栏技术的实效性、环节技术的熟练性、专业特点的经济性和反映这三个特性的几个技术如“直线性、节奏性、摆动腿技术、腿臂配合技术” ,构成了现代 110m跨栏跑技术的特点 ,使其更趋完善和合理。通过对 110m跨栏跑现代技术要素的分析 ,揭示了现代 110m跨栏跑的技术特点及理论依据 ,对男子 110m跨栏的教学、训练提供借鉴 相似文献
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110m跨栏跑是非对称性的周期性项目,对速度、力量、灵敏、柔韧协调性等素质均有极高要求。从刘翔的成功借鉴经验,本文对青少年优秀跨栏运动员的体能训练、技术训练等方面进行阐述,它对提高早期训练水平,使青少年跨栏运动员早期训练更加合理化、科学化,使他们为今后创造出更好的运动成绩打下基础。 相似文献
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分析刘翔、杰克逊110 m栏跑12.91 s同一成绩的技术参数。结果表明,刘翔的栏间速度均匀性强、节奏好,专项速度能力、专项速度耐力、终点冲刺能力以及起跑后的疾跑加速能力强,栏间3步步频快,这是他能创此优异成绩的重要技术因素与优势所在。但与杰克逊相比,刘翔最快栏周期出现较晚,快于1 s的高速分栏时间少,跨栏技术动作稳定性、起跑反应时、第1段落的加速能力以及跨栏步技术还有待提高与完善。 相似文献
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在跨栏跑项目中,110米栏是最具代表性和技术难度最大的项目,过栏是跨栏跑技术的重要组成部分,其任务是使身体快速越过栏架,为栏间跑创造条件。下面就以110米栏过栏时摆动腿与起跨腿的技术作一主要分析。 相似文献
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对我国110m跨栏技术特征的分析 总被引：1，自引：0，他引：1
结合现代跨栏技术原理和国内优秀110m跨栏运动员比赛的运动学参数,阐明良好跨栏跑技术的特征,为评价运动员跨栏跑技术的合理性提供可靠的依据. 相似文献
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我国优秀田径运动员刘翔在雅典奥运会勇夺男子110栏冠军，2006年打破男子110米栏世界纪录，2007年夺得110栏世界锦标赛冠军。刘翔的杰出表现与成就在国内掀起一股跨栏的热潮，使得跨栏这项运动对国人有一种特殊的情结与期待。在田径诸多项目中，跨栏跑作为一个观赏性比较强的运动项目，在中学的体育课堂中也比较受学生欢迎；但是跨栏跑这项运动开展起来较为困难。首先，跨栏跑是一项技术动作比较复杂的运动项目，要学好这项技术需要把身体素质跟过栏技术相结合起来。其次，跨栏跑具有一定的危险性，比较容易造成学生的运动损伤，对学生的保护措施要求较高，在跨越栏架的过程中，撞栏、摔栏、推栏都是很常见的问题。最后，跨栏跑对学生的身体素质要求比较高，包括身体的协调性和柔韧性以及爆发力。 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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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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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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曲爱宁 《体育科技文献通报》2007,15(8):97-98
柔韧素质是健美操专业学生的专项素质之一,通过对普通高校健美操专业学生分组对照进行柔韧性训练的实验研究,认为对训练肌群辅以按摩器振颤刺激,可大大提高柔韧性训练效果。 相似文献
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我国城市体育自然环境建设与发展的研究 总被引：5，自引：0，他引：5
采用实地调查研究、理性思维研究和文献资料调研等方法对主要问题进行了专门研究，提出了进行城市体育场所区域生态功能区划、设计体育生态功能区布局的方案、做好体育场所绿色环境系统规划、制定体育场所生态与绿地管理措施等基本观点，提出了若干城市体育自然环境建设与发展的对策。 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