共查询到17条相似文献，搜索用时 93 毫秒
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运用统计学的相关研究方法,对世界优秀女子200 m跑运动员的各50 m分段成绩与总成绩进行分析研究.揭示各50 m分段时间与200 m成绩之间的相关关系和当今世界优秀女子200 m跑运动员速度分配的基本特征. 相似文献
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运用相关分析、回归分析、聚类分析等研究方法,对世界优秀女子200 m跑运动员的各分段50 m成绩与总成绩进行分析研究,揭示各分段50 m时间与200 m成绩之间的相关关系,以及当今世界优秀女子200 m跑运动员速度分配的基本特征,为提高我国女子200 m运动成绩提供科学借鉴。 相似文献
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运用相关分析、回归分析、聚类分析等研究方法,对世界优秀女子200 m跑运动员的各分段50 m成绩与总成绩进行分析研究,揭示各分段50 m时间与200 m成绩之间的相关关系,以及当今世界优秀女子200 m跑运动员速度分配的基本特征,为提高我国女子200 m运动成绩提供科学借鉴. 相似文献
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顾旭锋 《体育科技文献通报》2010,18(10):28-28,59
运用统计学的相关研究方法,对世界优秀男子200m跑运动员的各分段50m成绩与总成绩进行分析。揭示各分段50m与200m成绩之间的相关关系和当今世界优秀男子200跑运动员速度分配的基本特征,为提高我国男子200m跑运动成绩提供科学借鉴。 相似文献
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梁荣发 《体育科技文献通报》2006,14(6):82-82
运用统计学的相关研究方法,对世界优秀女子200m跑运动员的各50m分段成绩与总成绩进行分析研究。揭示各50m分段时间与200m成绩之间的相关关系和当今世界优秀女子200m跑运动员速度分配的基本特征。1.简单相关分析表明,在第3个50m分段能保持良好的速度,是赢得比赛的根本保证,偏相关分析表明,各50m分段时间与200m成绩的偏相关关系绝对值大小排列为｜r4｜>｜r1｜>｜r3｜>｜r2｜(r1代表第1个50m分段,r2代表第2个50m分段,依此类推),这说明能够在第4个50m分段维持较高速度相当重要。2.建立了4个50m分段时间与200m成绩之间的多元回归模型:Y=0.306+0.… 相似文献
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研究目的:提高我国女子200m运动员的运动水平,为教练员科学化训练提供理论指导和方法。研究方法:文献资料法、灰色关联分析法和回归分析法。结果和结论:①影响女子200m跑专项成绩的主要因素是最大速度,其次是加速能力和速度耐力。②世界优秀女子200m跑成绩与每50m分段成绩遵循线性关系。③女子200m跑的速度特征是跑速接近匀速,每50m分段平均速度符合81.5%、100%、95.08%、和87.79%的模式。建议:教练员利用分段数学模型进行控制训练。 相似文献
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世界优秀男子400m跑运动员速度分配特征的新视角分析 总被引：1，自引：0，他引：1
运用相关分析、回归分析、因子分析等研究方法,对世界优秀男子400 m跑运动员的各分段50m时间与总成绩进行分析。揭示各分段50m与400m成绩之间的相关关系和当今世界优秀男子400m跑运动员速度分配的基本特征,为提高我国男子400 m跑运动成绩提供科学借鉴。 相似文献
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运用文献资料、数理统计、灰色关联分析等方法,对2015年北京田径世锦赛及第12届全运会女子全能前八名运动员各项成绩进行分析,结果显示:世界优秀女子七项全能运动员的800m、200m、100m栏、跳高、跳远等项目成绩对其全能成绩总分贡献程度很大;世界优秀女子七项全能运动员的各项目与全能成绩总分的关联度大小排序为:速度类项目＞跳跃类项目＞投掷类项目;世界优秀女子全能运动员速度类200m和100m栏,铅球与跳高存在非常显著性差异(P＜0.01),200m和800m存在显著性差异外(P＜0.05),其他各项目的相关性均不显著(P＞0.05);我国优秀女子七项全能运动员的各个单项和整体实力与世界水平差距很大. 相似文献
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为深入了解世界混合泳项目的发展趋势,促进我国混合泳项目的进一步突破,文章运用文献资料法、数理统计法、比较分析法、灰色预测法,对第1至第18届世界游泳锦标赛男女个人混合泳成绩发展态势及变化特征进行分析。运用灰色预测模型对第19届世界游泳锦标赛男女200m及400m个人混合泳项目第1名成绩进行预测。研究结果表明:世界游泳锦标赛男女200m及400m个人混合泳成绩的整体发展平衡且均呈现提高趋势,其中女子200m个人混合泳成绩提高幅度最大,男子400m个人混合泳成绩提高幅度最小;第13届世锦赛后,男女混合泳项目整体成绩均表现出不同幅度的下降;世界游泳锦标赛男女200m及400m个人混合泳成绩的变化趋势不同,其中,男女200m个人混合泳届内竞争逐渐加大,即前8名成绩差距逐渐缩小,男子400m个人混合泳次之,女子则相反;近年来,我国选手在混合泳项目中国际竞争力较强,与世界顶尖运动员差距不断缩小,男子200m个人混合泳为第19届世锦赛重点夺金项目;第19届世界游泳锦赛男女个人混合泳项目第1名成绩的预测值为:男女200m个人混合泳分别为1min 56s17、2min08s30,400m个人混合泳分别为4min08s24、4min29s85。 相似文献
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E Eichenberger B Knechtle P Knechtle CA Rüst T Rosemann R Lepers 《Journal of sports sciences》2012,30(12):1295-1301
Abstract Little research has examined ultra-endurance swimming performances. The 'English Channel Swim', where swimmers have to cover a distance of 32?km between England and France represents a unique long-distance, open-water, sea-swimming challenge, and each year swimmers from all over the world try to succeed in this challenge. The best times in minutes and the nationality of successful men and women swimmers were analysed from 1900 to 2010. A total of 1,533 swimmers (455 women and 1,078 men) from more than 40 countries have successfully completed the 'English Channel Swim'. Great Britain was the country most represented, with 38% of the total, followed by the United States with 20%. Swim speed has increased progressively for both sexes (P??0.05). The results suggest that the performance of women open-water ultra-distance swimmers may be similar to that of men. Further studies investigating anthropometrical and physiological characteristics of open-water ultra-swimmers are needed to compare men's and women's open-water ultra-swim performances. 相似文献
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张焕臣 《武汉体育学院学报》2002,36(5):106-108
在文献资料研究、调查访问和逐步回归分析的基础上，通过正交设计选取最佳教学训练指标组合成高校女生800m跑教学的优选方案。对成绩有显著性影响的4个因素分别是1200m跑、200m跑、60m后蹬跑和50m跑。 相似文献
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ABSTRACTRecently, there has been much controversy over the International Association of Athletics Federation (IAAF) regulations regarding eligibility to compete and natural testosterone levels in female athletes. Much interest lies in the analysis of Caster Semenya's extraordinary performance. The objective of this work were, a) Complete an analysis of Caster Semenya's results during the 800m finals and b) search for existing similar performances by other female athletes. We analysed the results of the finals of all IAAF World Championships and Olympic Games from 1984–2016, including the 800m results of the Diamond Leagues 2016–2018. Exponential curves were fit to the data to characterise and predict performance for each event. Caster Semenya's finishing times before her ineligibility to compete and after the suspension of the IAAF hyperandrogenism regulation were found to be 1.24% and 1.49%, respectively, faster than the characteristic performance of the elite-standard in the women’s 800m final. Other female athletes, with finishing times faster than the ones predicted by the characteristic curves were also discovered. The percentage difference in performance between Caster Semenya and the other participants did not reach 3% in the 800m event. No conclusions can be drawn regarding extraordinary results ever performed during the 100m, 200m or 400m finals. 相似文献
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Kirk J. Cureton Larry D. Hensley Antoinette Tiburzi 《Research quarterly for exercise and sport》2013,84(3):333-340
The purpose of this study was to determine the extent to which the mean difference in performance between men and women on selected physical performance tests was related to the sex difference in body fatness. Percent total body fat (% fat) estimated from skinfold thickness measures and performances on the modified pull-up, vertical jump, 50-yard dash, and 12-minute-run tests were measured on 55 male and 55 female college students. Males had significantly less fat and performed significantly better than females on each of the performance tests. Mean differences were 8.2% fat, 20.0 modified pull-ups, 20.8 cm on the vertical jump, 1.3 seconds on the 50-yard dash, and 590 m on the 12-minute run. Linear regression equations predicting performance scores from % fat within the groups of men and women indicated that if body fatness in men and women were similar, performance differences would be reduced, on the average, by 7 modified pull-ups, 4 cm on the vertical jump, .5 seconds on the 50–yard dash, and 146 m on the 12-minute run. These expected changes in performance were 36%, 19%, 38%, and 25% of the mean sex difference in performance on the four physical performance tests, respectively. It was concluded that greater body fatness is one characteristic that partly explains why women, on the average, do not perform as well as men on strenuous tasks requiring movement of the body weight. The sex-specific difference in body fatness should be one factor considered in establishing separate occupational and athletic performance expectations for men and women. 相似文献
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Jeremy B. Coquart Daniel Mercier Montassar Tabben Laurent Bosquet 《Journal of sports sciences》2015,33(11):1124-1131
The aim was to test the influence of sex and specialty (3000, 5000 and 10000 m) on the validity of middle-distance running performance predictions obtained from the Mercier et al.’s nomogram. Consequently, we examined all official French track running rankings for the 3000-, 5000- and 10000-m events (men and women) from 2006 to 2012. A scoring table was used to determine the runners’ specialties. Only runners who performed in the three distance events within the same year were included (75 women and 400 men). The Mercier et al.’s nomogram was used to predict one running performance from the other two. The results showed no significant difference between actual and predicted running performances (P = 0.77). Female runners had significantly lower performances than male runners (P < 0.001). Specialty did not influence performances (P = 0.11). Very high correlations were found between actual and predicted performances (0.91 < r < 0.99), with the exception of women (r = 0.85) in 5000 m. Moreover, low limits of agreement were obtained for male and female runners, whatever the specialty. These results support the validity of the nomogram to predict running performance in the 3000-, 5000- and 10000-m events for male and female runners, whatever the specialty. The predicted running performances may be used in training programmes (e.g., to prescribe tempo runs) and competitions (e.g., to establish split times). 相似文献
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世界优秀女子十项全能运动员的成绩特征 总被引：2，自引：0，他引：2
采用文献资料、数理统计和比较分析等方法，对优秀女子十项全能运动员的成绩特征进行分析，探索女子十项全能运动项目的发展规律。结果显示：女子十项全能尚在起步阶段，运动员的强弱项目分布各自不同，水平差距较大，造成各项目成绩和得分差并较大。短跑、跨栏、跳高和跳远项目得分比例较大，而投掷、1500m跑和撑竿跳高等项目相对较弱，反映出项目间发展的不平衡。各类项得分的比例为短跨类〉跳类〉投类〉耐力类。第2天的得分率比第1天要高。 相似文献