共查询到20条相似文献,搜索用时 78 毫秒
1.
2.
投篮技术是篮球运动中进攻技术的核心,是比赛中唯一得分手段。在篮球比赛中多种矛盾的焦点是投篮,进攻一方运用多种技术,战术的目的都是为了假造良好的投篮机会,并力求将球投入篮筐得分。而防守方则想方设法阻止对手投篮。双手都力争主动,因此,我们就投篮技术是矛盾的焦点。 相似文献
3.
投篮技术是篮球运动中进攻技术的核心,是比赛中唯一得分手段。在篮球比赛中多种矛盾的焦点是投篮,进攻一方运用多种技术,战术的目的都是为了假造良好的投篮机会,并力求将球投入篮筐得分。而防守方则想方设法阻止对手投篮。双手都力争主动,因此,我们就投篮技术是矛盾的焦点。一个运动员如果 相似文献
4.
试论旋转球在投篮中的运用 总被引:1,自引:0,他引:1
黄顺和 《体育成人教育学刊》1994,(2)
试论旋转球在投篮中的运用福建体院黄顺和投篮是指进攻队员,为把球投入对方球篮而采用的各种专门动作的总称。它是篮球运动非常重要的进攻技术和得分手段,一场球赛始终包含着进攻与防守两大部分.不论攻守,运用一切战术目的,都是为了投篮得分。比赛胜负是以投篮得分多... 相似文献
5.
一、前言投篮是篮球运动最关键的技术,而单手肩上投篮又是诸多投篮技术中最重要和最常用的技术,其技术动作的规范、合理与否,是影响投篮效果——命中率的首要因素。由于一些运动员投篮动作的不规范、不合理,在比赛中,特别在无人防守的罚球时,因命 相似文献
6.
抢篮板球技术是篮球运动中,一个很重要的组成部分。在篮球比赛中,投篮有一半以上能命中,防守的任务通常是防止对方投篮,但这在比赛中不是每次都能做到的,假如对方投篮了,防守一方应尽力使进攻一方抢不到篮板球,避免对方再次投篮。近年来国内不少专家经研究也发现,抢篮板球次数对比赛胜负的影响,比投篮命中率或总投次数对胜负的影响更大。 相似文献
7.
篮球运动不仅是通过技战术来比赛,也是"斗智"活动。因此灵活运用假动作,因人制宜,行之有效地防守,就能控制比赛。假动作在比赛中作为防守的一种技术手段越来越被人们所重视,本文将针对篮球比赛中防持球队员假动作进行探讨和分析。1运用假动作防持球队员的应用分析1.1防投篮。进攻队员持球时,防守者要严密防守。此时持球 相似文献
8.
9.
10.
篮球是一项技术综合性较强的运动项目,投篮得分的多少,决定着比赛的胜负。随着运动员身高、力量、弹跳等身体素质及防守技术、战术的不断发展与提高,那种无人防守、轻松投篮的现象在比赛中已经很少见到,取而代之的是有投必防,有投必封的激烈对抗场面。如何提高运动员在激烈对抗条件下投篮命中率已经成为提高竞技篮球运动水平的关键。 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.
16.
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
17.
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
18.
19.
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
20.
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