共查询到20条相似文献，搜索用时 156 毫秒
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我们在收看有关NBA的报道时，经常听到一个术语——“三双”，它是衡量球员技术的重要依据。“三双”的统计建立在五项技术指标的统计上，即得分，篮板、助攻、抢断、盖帽。所谓“三双”，就是指同一场次上述五项指标中有三项达到了两位数，即10次以上（含10次），意在反映球员的技术特点。由于中锋、前锋、后卫三个位置的划分，五项指标根据球员的身体条件具有天然的归属性，比方说中锋的优势在于盖帽和篮板，后卫的优势在于助攻和抢断，而前锋介于二者之间，由此产生了由不同项目组成的“三双”纪录。创造“三双”的球员至少具备打两个… 相似文献
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本文以浙江女排为研究对象。运用数理统计法对浙江女排在99－97年度全国排球联赛中五项技术的统计资料进行处理分析，并与同赛季我国优秀女排选手的技术指标进行比较研究，旨在探寻浙江女排目前在主要技术上存在的问题和差距，并据此提出改进的对策和建议，为浙江女排的技术训练提供参考。 相似文献
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目的:探讨元认知控制策略对高校田径教学效果的影响。方法:用试验教学的方法获得实验前后体育专业学生100m、110m栏、跳高、掷标枪和三级跳远五项技术评定成绩的数据,用SPSS l3.0统计学软件对所得数据进行T检验和描述性统计。结果:(1)实验前,实验班和对照班这五项技术评定成绩之间无显著性差异(P0.05);(2)实验后,实验班和对照班这五项技术评定成绩之间存在着显著性差异(p0.05),其中掷标枪和三级跳远达到了极显著性差异(P0.01);(3)利用元认知控制策略进行田径教学的效果比普通教学好。结论:利用元认知控制策略确实能够提高高校田径教学效果。 相似文献
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本通过对最新排球规则的研究和世界男女排球诸强基本技术的透视,对现代排球的发球、垫球、传球、扣球、拦网五项基本技术的发展趋势进行了探讨。 相似文献
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全能运动是由跑,跳、投所组成的综合田径运动项目,要求运动员要具备一定的速度、力量,耐力、柔韧、灵活等身体素质,才能更好地掌握技术和在比赛中发挥出更高的水平。女子全能运动项目在世界体坛上开始得比较晚,并且项目经常变动,这就给教练员和运动员带来很多不利因素。尽管如此,近些年五项全能运动水平仍发展得较快,世界女子五项全能成绩已达到4858分,而我国五项全能成绩则是4248分。这个成绩的取得,使我国教练员和运动员在进行女子五项全能训练中,积累了丰富的经验。但是国际田径联合会从今年起又把五项全能改为七项全能,增加200米和标枪,这又给教练员和运动员提出了新的课题:如何安排七项全能训练. 相似文献
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中美优秀男篮运动员部分技术和形态指标比较 总被引：3，自引：0，他引：3
张冉 《武汉体育学院学报》1998,(3)
对CBA、NBA在1996～1997年赛季得分、篮板球、盖帽、助攻、抢断五项技术前20名选手形态特征进行分析比较,揭示中国球员与世界优秀球员的形态与技术差异。 相似文献
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改革开放以后我国体育科技激励体系的发展 总被引：1，自引：0，他引：1
一、设立体育科技进步奖体育科技激励体系是指一系列的体育科技奖励制度，是对体育科学技术成果及科技人员的工作进行评价和奖励的社会机制，是维持体育科技事业正常发展的秩序、调整体育科学技术共同体内部关系的法则。由于“文化大革命”，我国科技奖励工作中断了１０年，粉碎“四人帮”后，我国在恢复正常的科研工作秩序的同时，也恢复了科技奖励制度，１９７８年的全国科学大会上三项体育科技成果受到奖励。１９８２年第五届全国人民代表大会第五次会议通过的新宪法第二十条规定“国家发展自然科学和社会科学事业，普及科学和技术知识，… 相似文献
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篮球策应队员要想发挥出自己最大的潜力，必须加强耐力、快速反应能力和灵活性、弹跳力、协调性以及力量素质训练，本文试从发展这五项身体素质的科学性和具体操作进行阐述和研究。 相似文献
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We determined the inter-day variability in elite-standard women's artistic gymnastics competition scores. National (50 gymnasts for up to three days) and Olympic (24 gymnasts for up to five days) competition scores published in the public domain ('Giant poster pull-out', 2010 ; Gymnastics Australia, 2008 ) were evaluated using three statistical measures. Analyses of the inter-day differences in the mean scores as a percentage (MDiff%), coefficient of variation percentages for the mean score across both days (CV%), and Pearson correlation coefficients for the inter-day score (r) were interpreted using thresholds from trivial to large. National-class gymnasts' two-day performance variation was trivial for vault, small for floor and beam, and moderate for bars. When senior gymnasts competed for a third day the performance variation increased to moderate for vault. Across five days of Olympic competition there were trivial (e.g. CV%: vault = 0.8) to small (e.g. CV%: bars = 2.0) variations in performances between days on all apparatus. Olympians' performance score consistency is superior to senior, national-class competitors. The performance score consistency required for gymnasts who aspire to participate at the Olympics as a top-24 competitor is better than 3%. 相似文献
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Jennifer Bunn Summer Schuitema Sidong Zhang Jerry Mayhew 《Research quarterly for exercise and sport》2019,90(1):64-70
Purpose: To evaluate the relationship between years of collegiate playing experience and success of NCAA Division I volleyball programs. Methods: Data were gathered from the 2010–2015 seasons for each volleyball program in the “power five” conferences. Players that were involved in at least 66% of the sets were selected for analysis. Each player’s years of college experience were tabulated and a team average experience score was created. This score was correlated with the end of season Ratings Percentage Index (RPI). Years with a significant correlation between success and experience were further analyzed for differences in on-court statistics by years of experience. Results: The range for team average experience score was 2.52–2.66. Only the 2012 season showed a moderate correlation between the team average score and RPI (ρ = ?0.421, p = .001), indicating that more experienced teams finished with a higher national ranking. Within this year, teams with more experience had a statistically significant (p < .05) higher season win percentage, higher conference win percentage, higher hitting percentage, more kills/set, and more assists/set than teams with low or only moderate experience. Conclusions: These data suggest that more collegiate playing experience does not always result in a significantly more successful season, but trends indicate that a relationship does exist between experience and success. In the one year that showed significance, more experienced teams had more favorable statistics related to skills that terminate play (e.g., kills) rather than ball control skills (e.g., digs and passing). 相似文献
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对国家男排队员跳发球技术的运动学比较研究 总被引：7，自引：0，他引：7
跳发球是近年来国内外男排比赛中主要的发球得分手段。本文通过对5名,中国男排队员的跳发球技术及2号位扣球技术、正面上手发球技术的影片解析,获取了跳发球技术的特征;揭示了跳发球与2号位扣球及正面上手发球在技术上的不同点,从而为跳发球训练提供一些理论依据和运动学参数。 相似文献
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李钦 《哈尔滨体育学院学报》2010,28(4)
采用文献资料、数理统计、录像观察法对2009～2010赛季CBA总决赛新疆队和广东队5场比赛的队伍结构及技战术运用情况进行统计,对双方得分能力、投篮次数、得分关系、主要得分形式、罚球命中率、篮板球、助攻和犯规等进行对比和分析,结果表明:新疆队在总体得分能力、外线攻防能力、后场篮板球和助攻等方面和广东队相比存在一定的差距。 相似文献
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我国男子排球队主动得分水平的诊断与评定 总被引：3，自引：2，他引：1
采用文献资料、问卷调查、录像统计等研究方法，确定我国男子排球队主动得分水平诊断的评价指标，即一攻命中率和再攻命中率为进攻水平的评价指标；发球命中率、破攻率为发球水平的评价指标；拦网命中率、有效拦网率为拦网水平的评价指标。建立诊断指标等级评价量表；并进行实例验证与分析。 相似文献
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Males typically have greater upper body strength than do females, which is likely to impact on the rowing techniques adopted by each sex. The aim of this study was to quantify energy contributions and compare the joint power production of upper extremity joints between the sexes. Seven males and eight females performed 60 s trials at five different stroke rates. External forces were measured at the handle and stretcher, while kinematics were recorded by motion analysis. Joint moments were derived by inverse dynamic calculations, followed by the calculation of joint powers and gross mechanical energy expenditure. Male rowers expended more total external energy per stroke and made a larger percentage contribution of angular shoulder energy to their total external energy expenditure. As stroke rate increased, the contribution from elbow and angular shoulder energy contributions decreased for both males and females. Female rowers decreased their angular shoulder contribution at a slower rate than did males as stroke rate increased. The overall percentage of work done on the stretcher was higher for male rowers, and this difference further increased at higher stroke rates. The results of this study suggest that specific upper body conditioning may be particularly important for female rowers. 相似文献
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采用文献资料法、录像观察法、数理统计法、对比分析法,对参加第二十九届北京奥运会的中国女篮的8场比赛进行技术统计,分别与8支国外女篮前锋队员的相应技术指标进行对比分析。结果显示：中国队前锋在进攻中抗干扰得分的能力比对手差,命中率较低;在前锋球员场均得分占全队得分百分数上与对手差异显著;防守技术不合理,配合质量不高,难以对对手形成有效地控制。 相似文献
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Irwin G Kerwin DG 《Sports biomechanics / International Society of Biomechanics in Sports》2007,6(2):131-144
This study focused on identifying the most effective skill progression for developing the longswing on high bar in men's artistic gymnastics. Building on previous work by Irwin and Kerwin, in which a method to rank progressions based on their angular kinematics was developed, this study aimed to use the method to quantify similarities in inter-segmental coordination between selected progressions and the longswing on high bar. Video images of four members of the UK men's national gymnastics squad performing three series of five longswings and eight progressions were recorded at 50Hz. Two-dimensional direct linear transformation techniques were used to determine the real-world coordinates from the digitized data. Inter-segmental coordination of the hip and shoulder joints during the functional phases of the longswing was assessed using continuous relative phase. Similarity between the longswing and each progression was represented by a "specificity score", which was also used to rank the progressions. Each progression's specificity score was calculated by combining a "difference score" (root mean squared difference between the continuous relative phase profiles of the longswing and the progression) and a "variability score" (standard deviation of the continuous relative phase profiles for each progression). The progressions that were most similar to the longswing included the looped bar longswing and layaway swing down (ranked 1st and 2nd), with specificity scores of 9% and 10% respectively. In contrast, the least similar progressions were the looped bar "no action" longswing (51%) and pendulum swing (63%) (ranked 7th and 8th). Establishing effective skill learning pathways is recognized as a key component of the coaching process and ranking progressions based on their specificity score provided a mechanism to identify progressions with similar inter-segmental coordination profiles to the key skill on the high bar, the longswing. 相似文献
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篮球得分是一切进攻技、战术的最终目的和全部攻守矛盾的焦点。通过对雅典奥运会女篮比赛前六名球队的5场比赛和中国队落败的4场比赛进攻得分情况进行统计分析，探讨雅典奥运会女篮前六名球队进攻得分的特点，并与中国女篮进攻得分的特点进行比较，找出中国女篮存在的差距，为今后中国女篮的训练和比赛提供有益参考。 相似文献