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一、外拨挡防右摆拳击面 对方用右直拳向李小龙面部击打,李见对方右拳打来速用左掌向外拨挡开对方右拳。接着,李用右摆拳向对方面部左侧猛力击打,将站方打倒侧摔于地(图1)。 要点:防守时外挑拨挡要及时,拨挡横向用力,动作不可太大,以对方右拳不及身为宜。右摆拳还击要快速,准确有力,力达拳背。 解析:此动作为防守还击法,拨挡防可使对左右拳失去攻击效果,使其心理发生变化,李小龙抓住时机趁其出击失 相似文献
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散打项目中出拳的力量和速度是影响散打技术击打效果的关键因素,要发展出拳力量和速度,关键在于核心素质的练习。研究通过对两组运动员进行力量训练干预实验,实验前后对实验对象进行运动生物力学方面的测试和结果统计,研究结果：核心力量训练后(1)实验组运动员做前手摆拳动作时的髋关节屈伸角度（140.30±2.07°）比实验前更大（P<0.05）,(2)实验组出拳阶段的髋部（2.863±0.107m/s）和肩部（4.137±0.132m/s）速度提升,带动拳峰部的出拳速度（11.033±1.116m/s）提升,(3)实验组与对照组在出拳阶段与总时间上均有明显缩短。研究结论：(1)核心力量训练有助于增加散打前手摆拳击打路线,提升技术动作的稳定性;(2)核心力量训练能提高散打前手摆拳整体出拳速度;(3)核心力量训练与传统力量训练都具备缩短前手摆拳动作时间的效果。 相似文献
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组合拳在拳击比赛中的运用 总被引：1，自引：0，他引：1
组合拳就拳法的技术而言，它可分为单个拳法的技术动作和组合拳技术动作两大类。单个拳法技术分为直拳、摆拳、勾拳等拳法，组合拳技术分为左直拳接右直拳、三次扰视拳接右直拳、左直拳接右摆拳接左钩拳等。在拳击比赛中组合拳是一种常用的拳法。阐述了在拳击比赛中运用组合拳的具体方法。 相似文献
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运用录像观察、数理统计、对比分析等方法对2016年巴西里约奥运会十名男子拳击冠军运动员技战术的运用情况进行研究与分析,总结出冠军运动员技战术的运用特征。1、冠军运动员不断使用前手直拳真假虚实进攻,借助假动作引诱对手反击或进攻后进行后摆拳、后直拳迎击或直接重击对手头部;2、前手单拳佯攻后组合拳重击;迎击时以后直拳、后摆拳精准击打对手头部;严密防守后或快速撤防后组合拳重击,并以格挡与后仰防守;3、快速后仰后单拳或组合拳结合反击、格挡防守反击精准、躲闪防守以迎击为主;4、重拳组合迎击以假动作、虚晃、步法、欲攻动作为前提,精准性高;5、犯规技术以头前冲为主且使用次数和种类较少。 相似文献
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分解教学在武术教学中具有十分重要的作用，分解技巧的好坏往往决定着教学的质量与效果。从某种意义上说，没有合理有效的分解技巧，就没有得心应手的武术教学。笔者多年从事武术教学，在此愿将教学心得与大家分享。一、分解方法１．结构和方向路线复杂繁难的动作分解方法（l）按上下肢两部分进行分解教学。如《初级长拳第三路》第二段第六动“叉步双摆掌”，可分解成上肢部分的双摆掌和下肢部分的插步成叉步。（２）将一个动作分解成几个小节进行教学。如《少年拳第二套》中的“跃步冲拳”可分解成三小节：①屈体提膝后摆掌；②上步跳跃后… 相似文献
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竞技武术套路中腾空摆莲B和C级跳跃落地接马步是长拳、南拳武术项目的两个难度动作.通过对该组动作落地技术的动力学及相关稳定性因素的分析,提出合理的落地技术和训练中需解决的问题.采用录像观察与试验分析相结合的方法,针对男女运动员的腾空与落地的特点,提出相应的解决办法和训练理论. 相似文献
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北京奥运会拳击比赛迎击拳功效分析 总被引：3，自引：0，他引：3
运用专家访谈法、观察分析法等研究方法分析北京奥运会拳击比赛中的迎击拳技术.拳击运动要求运动员运用灵活的步法快速移动,迅速地出拳反击和适时地进行迎击.主要结论:要充分认识迎击拳在拳击比赛中得分的重要性;进一步提高运动员身体素质、反应能力和拳法技术;加强左右手摆拳迎击拳的训练;与拳击强国的交流是提高拳击技术水平的重要途径.建议我国拳击运动员进一步增强迎击拳和其他拳的综合运用效果.进一步提高中国拳击运动员技术水平. 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