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广东运动员尹汉钊是目前我国男子 一线短跑选手中的代表人物。１９９８年６月 ６日，在全国大奖赛总决赛（北京）中，尹汉钊跑出１０秒２４的好成绩，但是近两年没有获得新的突破。我们根据他１９９７，１９９９年的３次比赛的技术录像，进行一些分析，供教练员、体育教师和短跑爱好者们参考。一、全程技术指标的分析 图１、２是尹汉钊１９９７年上海全运会比赛和１９９８、１９９９年全国田径大奖赛总决赛的全程技术参数。就成绩而言，１９９８年１０秒２４最好，１９９７年１０秒３３次之，１９９９年１０秒３８最低。由图可以看出尹汉钊… 相似文献
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乱世江湖──１９９７～１９９８年德国足球甲级联赛前半程综述１９９７－１９９８年德国足球甲级联赛在于寒地冻中步入了“中盘”拼杀,在１９９７年１２月２０日冬休期开始之前,德甲共进行了２０轮比赛。经过这２０轮的激战,本赛季德国足球的“大模样”已初见端倪,回... 相似文献
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王治郅,１９７７年出生,北京人。１９９１年起先后在八一青年队。八一队、国家青年队、国家队效力。其间,曾获得１９９５年世界青年锦标赛第９名,并获得“最佳中锋”奖,１９９６年２２岁以下亚洲锦标赛亚军,并获得“最有价值球员”奖,１９９６年奥运会第８名,并获得“盖帽”第三名,１９９７年、１９９９年亚洲锦标赛季军、冠军,１９９８年亚运会冠军,１９９７年全运会冠军,１９９５－１９９６、１９９６～１９９７、１９９８～１９９９。１９９９～２０００赛季全国男篮甲Ａ联赛冠军,并获得１９９６～１９９７赛季全国男篮甲Ａ… 相似文献
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以中国女子足球国家队为研究对象,选取2010年至2011年共计15场正式比赛,对比赛相关技术指标的统计以及各技术指标与比赛结果的相关性分析表明:控球率、射门次数、射门成功率、进球四项技术指标与获得比赛胜利的相关性较高,而传球次数、定位球、犯规与越位等技术指标与获得比赛胜利的相关性较低. 相似文献
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从新规则看健美操难度动作的发展 总被引：1，自引：0，他引：1
一、引言当今,国际健美操运动发展十分迅速,国际体操联合会正大力宣传,力争在２００４年将健美操列入奥运会比赛项目。国际体操联合会在新的情况下制订了１９９７－２０００年的健美操竞赛规则（下称新规则）,并将难度划分了种类和等级。新规则与国家体委审定的１９９... 相似文献
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Variable versus constant power strategies during cycling time-trials: prediction of time savings using an up-to-date mathematical model 总被引：2，自引：0，他引：2
Swain (1997) employed the mathematical model of Di Prampero et al. (1979) to predict that, for cycling time-trials, the optimal pacing strategy is to vary power in parallel with the changes experienced in gradient and wind speed. We used a more up-to-date mathematical model with validated coefficients (Martin et al., 1998) to quantify the time savings that would result from such optimization of pacing strategy. A hypothetical cyclist (mass = 70 kg) and bicycle (mass = 10 kg) were studied under varying hypothetical wind velocities (-10 to 10 m x s(-1)), gradients (-10 to 10%), and pacing strategies. Mean rider power outputs of 164, 289, and 394 W were chosen to mirror baseline performances studied previously. The three race scenarios were: (i) a 10-km time-trial with alternating 1-km sections of 10% and -10% gradient; (ii) a 40-km time-trial with alternating 5-km sections of 4.4 and -4.4 m x s(-1) wind (Swain, 1997); and (iii) the 40-km time-trial delimited by Jeukendrup and Martin (2001). Varying a mean power of 289 W by +/- 10% during Swain's (1997) hilly and windy courses resulted in time savings of 126 and 51 s, respectively. Time savings for most race scenarios were greater than those suggested by Swain (1997). For a mean power of 289 W over the "standard" 40-km time-trial, a time saving of 26 s was observed with a power variability of 10%. The largest time savings were found for the hypothetical riders with the lowest mean power output who could vary power to the greatest extent. Our findings confirm that time savings are possible in cycling time-trials if the rider varies power in parallel with hill gradient and wind direction. With a more recent mathematical model, we found slightly greater time savings than those reported by Swain (1997). These time savings compared favourably with the predicted benefits of interventions such as altitude training or ingestion of carbohydrate-electrolyte drinks. Nevertheless, the extent to which such power output variations can be tolerated by a cyclist during a time-trial is still unclear. 相似文献
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A notational analysis of elite tennis strategy 总被引：6，自引：3，他引：3
A notational analysis of singles events at all four Grand Slam tournaments between 1997 and 1999 was conducted to determine the influence of the sex of the player and court surface on elite tennis strategy. Rallies of 7.1 +/- 2.0 s in women's singles were significantly longer than those in men's singles (5.2 +/- 1.8 s; P < 0.001). Rallies of 6.3 +/- 1.8 s at the Australian Open, 7.7 +/- 1.7 s at the French Open, 4.3 +/- 1.6 s at Wimbledon and 5.8 +/- 1.9 s at the US Open were recorded. Rallies were significantly longer at the French Open than at any other tournament (P< 0.05) and significantly shorter at Wimbledon than at any other tournament (P< 0.05). In women's singles, 52.8 +/- 12.4% of points were baseline rallies, significantly more than in men's singles (28.6 +/- 19%; P < 0.001). The proportion of baseline rallies played at the French Open (51.9 +/- 14.2% of points) was significantly greater than at the Australian Open (46.6 +/- 12.5%), Wimbledon (19.7 +/- 19.4%) and the US Open (35.4 +/- 19.5%; P < 0.05). The results show that both the sex of the player and surface of the court have a significant influence on the nature of singles tennis at Grand Slam tournaments. 相似文献
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胡一平 《山东体育学院学报》2003,19(2):93-96
从引文数量、类型、语种、年代等对《山东体育学院学报》(1998— 2 0 0 2 )发表的 5 5 2篇论文的 2 96 1篇引文进行了统计分析 ,并和本文作者 1998年发表的《1988- 1997年〈山东体育学院学报〉引文分析》进行了比较。结果显示 :《山东体育学院学报》已经形成比较合理的引文文献型和语种分布 ,引文文献年限趋于新颖性 ,各种引文数据基本符合科技类期刊的引文规范 ;篇均引文量 (4 .96篇 )比 1988— 1997年有明显提高 ,但与国内外科技期刊仍存在差距 ,外文引文率较低(15 .70 % ) ,自引率低。 相似文献
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为把握北美体育管理研究领域的内容特征,运用文献资料和逻辑分析等方法,对《体育管理学杂志》(JSM)1997—2006年发表的163篇研究论文的研究主题进行归类与凝练,对排名前10的研究热点进行探讨。研究发现该领域涉及面广泛,与体育管理实践和体育市场经济紧密结合,既有较高的理论意义,又有极强的应用价值。 相似文献
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福州市1997-2000年成年人体质比较分析 总被引：2，自引：0，他引：2
通过2000年福州市20-59岁的1681名成年人体质状况进行调查研究,以及同1997年4738名成年人身体形态、机能、素质所测均数进行对比分析。结果表明,福州市成年人随年龄增长,身高均值下降,体形变胖,机能水平逐渐下降,素质显著下降。 相似文献
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For any athlete competing at the highest level it is vital to understand the components that lead to successful performance. World cup cross-country mountain biking is a complex sport involving large numbers of athletes (100-200) competing for positional advantage over varied off-road terrain. The start has been deemed a major part of performance outcome in such races. The purpose of the present study was to establish the relationship between start and finish position in cross-country mountain bike World Cup events over a 10 year (1997-2007) period and to make comparisons with a model manipulating start position based on predicted athletic capabilities. Data collection and comparisons included results from World Cup events from 1997 to 2007 (males and females), and modelled race data based on potential performance capabilities over the same period. Analyses involved the association of annual plus pooled start and finish position (Kendall's tau) along with banded mean, standard deviation for number of changes in position, while non-constrained linear regression enabled comparison between seasons. Actual race data showed significant positive correlations between starting position and finishing position (P < 0.01) in all cases but less than the model. A mean 57.4% (s = 5.6) of males changed < 15 positions, while 62.9% (s = 9.1) of females changed < 10 positions compared with modelled data (83.6%, s = 0.8 and 91.6%, s = 1.5 for males and females respectively). Individual season comparisons show general patterns to be identical (P > 0.05) for both males and females. In conclusion, finishing position is highly dependent on start position and strategies need to be devised for competing athletes to progress in the sport. 相似文献
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胡喜华 《体育科技文献通报》2008,16(2):65-67
采用文献资料与逻辑分析等方法，对1997—2006年国内公开发行的25种中文体育期刊中有关体育舞蹈教学方面的论文进行统计分析，并与10年间体育舞蹈科研状况加以比较，旨在分析探讨体育舞蹈教学科研现状，并在此基础上，提出若干建议。 相似文献
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黄爱锋 《西安体育学院学报》2002,19(1):101-102
通过资料法、问卷调查等方法 ,从学生的角度对高校体育教育专业新课程方案的实施效果进行研究 ,结果表明 ,学生对 1997年教育部颁布的新课程方案基本表示认可 ,但对于课程方案中的选修课、术科类课程和教育实习等存在较大意见 相似文献
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体育术科高考乒乓球专项考试方法与标准的探讨 总被引：1，自引：0，他引：1
本文通过对１９９７年浙江省体育术科高考宁波师院考点各项成绩的对比分析和乒乓球专项考试原始成绩的统计分析，认为乒乓球专项成绩远远优于其它项目，主要原因是其考试方法不够科学，评分标准明显偏低所致。因此，重新审定乒乓球考试方法和标准是深化我省体育术科高考改革中急待解决的重要课题之一。 相似文献
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本文通过文献资料法，以老年人体育为题名在中国期刊全文数据库上模糊搜索，共找到1997至2006近十年来发表的关于我国老年人参与体育运动方面的论文共302篇，同时参考其它与老年人及老年人体育运动有关的论文及读物，较深入的了解我国老年人体育运动开展方面的的信息，为我们进一步对老年人体育运动的研究提供理论上的依据和借鉴。 相似文献