共查询到20条相似文献，搜索用时 312 毫秒
1.
2.
3.
１．孔令辉为均衡型打法的运动员,他的最大特点是技术全面,发挥稳定,在发球轮、接发球轮和相持段中均有极强的对抗能力。李富荣在评价孔令辉时说：“其年龄、球艺、经验正值运动生涯的顶峰,加上赛前技战术、身体、心理都调整至最佳状态,从而为取胜打下了坚实的基础”。 ２．孔令辉在前三板的对抗中稍占优势。 ａ．发球轮中,孔令辉抢攻意识强,上手率为４７．８％,这个比例是非常高的。 ｂ．接发球轮极为稳定,中性球的处理十分得当,接发球的抢攻次数竟多于对方的发球抢攻,十分鼓舞士气。 ３．相持段发挥了无与伦比的成功。在主动进… 相似文献
4.
以世界优秀女子一线横板弧圈球结合快攻型打法5名乒乓球选手为研究对象,采取录像观察法、数理统计法等对其2010~2012年间参加的50场国际比赛录像进行技战术统计与分析,通过对女子横板＂弧快＂打法方法的技战术特征分析得出＂弧快＂打法选手发抢段使用率、得分率均为良好,发球和发球抢攻战术是发抢段主要得分手段,发球后控制技术也具有一定得分实力;接抢段使用率、得分率都为优秀,接发球、接发球抢攻、接球后抢攻是接抢段主要得分手段;其相持段使用率保持在良好水平,得分率为及格,该打法相持段反手得分能力突出。 相似文献
5.
运用文献资料法、录像观察法、数理统计法,对2012年伦敦奥运会乒乓球男单决赛张继科发球轮和接发球轮技战术运用特点进行整理分析,找出张继科在比赛中技战术运用的特征,为进一步完善横拍弧圈快攻型打法提供参考。研究结果显示:张继科在发球轮中得分率略低于接发球轮。一方面说明张继科接发球和接发球抢攻质量较高,另一方面也说明目前高水平运动员接发球上手更加积极主动,已摆脱过去较为被动的局面。 相似文献
6.
对当今世界高水平男子乒乓球运动员削球打法的特征进行研究.结果表明,削球打法在前4板的争夺中,得分能力不强,发球抢攻段和接发球抢攻段的抢攻使用率和得分率与进攻型打法相比较仍有较大的提高空间;削球打法在相持段的使用率和得分率较高,相持段的技战术非常重要;正手削球的稳定性亟待加强.国际乒联对兵乓球做出规则和器材的修改,诸如球拍两面覆盖不同颜色、无遮挡发球、40mm大球、11分制、无机胶水等等,给削球打法带来了机遇与挑战. 相似文献
7.
运用文献综述法、录像观察法、乒乓球＂三段分析法＂等,对2012年乒乓球斯洛文尼亚公开赛男单决赛张继科与马龙在发球抢攻段、接发球抢攻段和相持段的技术运用情况进行分析,结果显示：张继科在发球抢攻段、接发球抢攻段和相持段的技战术得分率均高于马龙,而马龙在发球直接得分上高于张继科。 相似文献
8.
运用三段技术统计法对樊振东在2014年亚洲杯乒乓球男单决赛中的发球抢攻段、接发球抢攻段和相持段的技战术运用进行统计并分析,探讨樊振东在技战术运用上的特点,从技战术的角度分析比赛失利原因。结果表明：樊振东发球后第三板被马龙控制,第三板直接上手机会不多,发球落点节奏变化不明显;接抢段优秀,接发球控制、进攻技术使用比较流畅,积极主动;相持段中发抢段相持球得分好于接抢段相持球技术,相持中反手拉技术使用较多,正手相持技术使用频数较低。 相似文献
9.
运用文献资料法,结合对世界优秀乒乓球运动员的观察。分析规则修改后乒乓球技战术发展趋势,并在此基础上,提出青少年运动员基础训练的基本思路。研究显示:重建发球及发球抢攻体系。发球的技术动作、旋转、落点的选择,应突出与自身打法及特长技术之间的衔接,围绕己身的特长抢攻技术,构建全面、立体、多变的发球抢攻技战术体系。接发球朝向"主动、凶狠、全面"的方向转变。注重培养运动员主动相持意识及其衔接能力。此外,须加强专项体能、心理等方面的训练。 相似文献
10.
2011年法国网球公开赛李娜技战术研究 总被引：1，自引：0，他引：1
通过录像观察法等对李娜在法国网球公开赛7场比赛中发球阶段、接发球阶段、相持阶段以及整体的技战术运用进行分析。结果表明,李娜发球阶段技术较为稳定,但球速不高,为对手接发抢攻提供了机会;接发球阶段接第二发球得分率明显高于接一发;相持阶段战术合理,心理更加成熟稳定。建议:李娜在训练中提高发球速度;接发球应形成自己的技战术套路;加强相持阶段心理承受能力和应变能力训练。 相似文献
11.
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
12.
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
13.
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
14.
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
15.
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
16.
17.
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
18.
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
19.
20.
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