共查询到20条相似文献，搜索用时 234 毫秒
1.
实证研究了中国足球职业俱乐部教练员的价值,主要围绕教练员更换的主要原因、教练员更换与球队成绩的因果关系和关联程度、教练员更替的个人特征与球队成绩之间关系等问题展开讨论.研究表明,影响中国足球俱乐部更换教练员的主要因素为上期胜率和球队管理风格;教练员更替的路径分析显示,教练员更替、引进球员和前赛季成绩都对本期胜率产生显著影响,其中,"教练员更替"因素对球队当期成绩有负向影响,支持了"管理者更替恶性循环理论";最优更替类型的选择顺序依次为赛季间内部更替、无更替、赛季间外部更替、赛季内内部更替、赛季内外部更替;"教练员能力"因素对球队成绩具有明显的作用,而"年龄"因素作用并不明显. 相似文献
2.
刘毅 《体育科技文献通报》2012,20(3):40-41
对第16届女子篮球世锦赛各球队的11项技术指标进行统计,并运用因子分析法对所得数据进行分析和检验。结果表明：影响第16届女子篮球世锦赛成绩的技术数据指标可以分为：进攻能力类因子、投篮能力类因子、个人防守能力类因子和失误类因子,这4类决定着第16届女子篮球世锦赛各球队的综合技战术水平,影响球队的成绩;影响第16届女子篮球世锦赛各球队成绩的技术数据指标是得分、进攻篮板、助攻、三分命中率、盖帽和失误6项指标;运用因子分析对篮球比赛的技战术指标进行量化评价具有较高的可靠性,能够客观的反映各队的技战术能力。 相似文献
3.
对NBA球队运动员参赛、首发和运动员上场时间与球队胜率的比较分析 总被引：1，自引：1，他引：0
对NBA各球队运动员参赛总平均次数、平均首发次数和运动员上场时间与各球队胜率进行比较分析 ,结果表明 ,球队胜率较高的队 ,球队的平均参赛率和首发率较高 ;同时发现运动员在场上比赛时间在 1～ 2节比赛的人数为最多 相似文献
4.
主要通过数理统计等方法,对2010—2011赛季中国男子职篮联赛平均得分与该队外援进攻能力进行回归分析和综合评价,结果表明:罚球命中率和助攻这两项指标对其球队得分的贡献突出,是反映外援进攻能力的主要指标。 相似文献
5.
采用逐步回归分析法、秩相关分析法和聚类分析法对26届亚洲男子篮球锦标赛各球队的技战术指标进行统计与分析,研究影响本届比赛各球队得分能力的主要因素。研究结果:(1)建立影响第26届亚洲男子篮球锦标赛各球队得分能力的回归方程;(2)影响第26届亚洲男子篮球锦标赛各球队得分能力的主要因素是被侵、失误、助攻和进攻篮板4项技战术指标;(3)第26届亚洲男子篮球锦标赛各球队得分能力的回归方程得分值排序情况与名次排序具有一定程度的相关关系,回归方程能较好地反映出第26届亚洲男子篮球锦标赛各球队的得分能力情况;(4)聚类结果与第26届亚洲男子篮球锦标赛各球队的最后排名基本一致。研究结论:该研究有效性较高,各球队可以根据得分能力回归分析和各球队技战术指标聚类分析的结果进行针对性的训练,提高队员冲抢进攻篮板的能力、减少球队失误、提高球员合理技术的能力,加强队员进攻、突破能力,提高球队的得分,最终提高球队成绩,为各球队训练计划的制定提供参考。 相似文献
6.
对第27届亚锦赛中国男篮与4强队之间的比赛进行分析,结果表明：中国男篮在场均得分、总投篮命中次数、总投篮次数、2分球投篮次数、3分球投中次数、防守篮板球和盖帽等指标上,都是前四强球队中最低的;中国男篮除在投篮次数上略高于其他队伍外,其他技术统计指标比其他球队较低。 相似文献
7.
以第16届亚运会日本、韩国和朝鲜男子足球队所参加的决赛阶段比赛为研究对象,选取球队传球和抢断球的次数作为球队进攻和防守能力的指标,球队核心球员传球方向的次数、成功率和比例作为球队技战术特征的指标进行数据统计和分析,以期为我国男子足球队在今后比赛中能够更好地应对对手提供理论依据。 相似文献
8.
9.
现代篮球运动在不断向高速度、高空优势、高空技巧、激烈对抗发展的同时,攻防转换速度在篮球战术行动中的作用尤为重要。对第28届雅典奥运会男子篮球中国队7场比赛的攻防速度和与之比赛的6支球队的攻防速度进行了对比和研究,结果表明攻防转换速度快的球队,胜率较高。从攻守战术实施和运用的时空内容,彼此间相互关联的若干因素等揭示篮球运动攻防转换速度的重要,指出攻防转换速度能力乏力进而影响投篮次数是中国男篮成绩不佳的直接原因。 相似文献
10.
扈军 《体育科技文献通报》2010,18(5):45-46
本文采用文献资料法、访问调查法、数理统计法等研究方法,结合目前我国篮球后备人才培养,分析新赛季CBA联赛外援使用新政策对我国篮球竞技水平的提高与发展带来的制约和影响作用。通过研究得到：在目前CBA联赛外援的制度下,各支球队过分依赖外援的发挥平均出场比赛时间达到了41.2分钟,大大缩减了年轻队员的比赛锻炼机会;在目前我国后备力量的培养模式下,这种制度非常不利于我国篮球竞技水平的快速提高和突破。 相似文献
11.
收集2018~2019赛季CBA联赛常规赛的相关技术数据,按照所选择的10项防守指标(自变量)对防守效率(因变量)贡献程度的大小进行逐步回归分析。结果显示:按照对CBA球队防守效率(因变量)贡献的大小,本研究所引入的防守技术指标(自变量)依次为:抢断、防守篮板、场均篮板、盖帽、限制对手三分命中率、限制对手罚球命中率。按照球队的战绩分为前十名高水平球队与后十名较低水平球队,通过Mann Whitney U检验对比这6项防守技术指标,其中场均篮板、盖帽、限制对手罚球命中率三项指标不同水平球队间无显著性差异(P>0.05);抢断、场均防守篮板、限制对手三分球命中率三项指标高水平球队明显强于较低水平球队,且二者之间呈显著性差异(P<0.05)。 相似文献
12.
Miguel ángel Gómez Javier Pérez Bartosz Molik Robert J. Szyman Jaime Sampaio 《Journal of sports sciences》2013,31(11):1066-1075
AbstractThe purpose of the present study was to identify which game-related statistics discriminate winning and losing teams in men’s and women’s elite wheelchair basketball. The sample comprised all the games played during the Beijing Paralympics 2008 and the World Wheelchair Basketball Championship 2010. The game-related statistics from the official box scores were gathered and data were analysed in 2 groups: balanced games (final score differences ≤12 points) and unbalanced games (final score differences >13 points). Discriminant analysis allowed identifying the successful 2-point field-goals and free-throws, the unsuccessful 3-point field-goals and free-throws, the assists and fouls received as discriminant statistics between winning and losing teams in men’s balanced games. In women’s games, the teams were discriminated only by the successful 2-point field-goals. Linear regression analysis showed that the quality of opposition had great effects in final point differential. The field-goals percentage and free-throws rate were the most important factors in men’s games, and field-goals percentage and offensive rebounding percentage in women’s games. The identified trends allow improving game understanding and helping wheelchair basketball coaches to plan accurate practice sessions and, ultimately, deciding better in competition. 相似文献
13.
Angel Ric Robert Hristovski Bruno Gonçalves Lorena Torres Jaime Sampaio Carlota Torrents 《Journal of sports sciences》2016,34(18):1723-1730
The aim of this study was to identify the dynamics of tactical behaviour emerging on different timescales in football small-sided games and to quantify short- and long-term exploratory behaviour according to the number of opponents. Two teams of four professional male footballers played small-sided games against two different teams with a variable number of opponents (3, 5 and 7). Data were collected using a combination of systematic observation and a non-differential global positioning system (15 Hz). The temporal diversity and structural flexibility of the players were determined by calculating the dynamic overlap order parameter q, entropy and trapping strength. Analysis of the exploratory dynamics revealed two different timescales, forming a different metastable landscape of action for each constraint. Fast dynamics lasted on average a few seconds and consisted of changes in tactical patterns. The long timescale corresponded to the shared tasks of offence and defence lasting tens of seconds. The players’ tactical diversity decreased with an increasing number of opponents, especially in defence. Manipulating numerical imbalance is likely to promote changes in the diversity, unpredictability and flexibility of tactical solutions. The fact that the temporally nested structure of constraints shaped the emergence of tactical behaviour provides a new rationale for practice task design. The manipulation of numerical imbalance on the timescale of a few tens of seconds, on which the exploratory behaviour of players saturates, may help coaches to optimise the exploratory efficiency of the small-sided games. 相似文献
14.
探索不同赛制下比赛表现指标对比赛结果产生的影响,选取2018年俄罗斯世界杯59场、118组技战术表现和跑动表现指标作为自变量,比赛胜、负作为因变量。运用K型聚类分析,对比分均衡比赛进行界定。根据比赛控球率的不同对比赛表现指标进行标准化处理。运用数据级数推断法界定各自个变量增加2个标准差对比赛获胜概率带来的变化。研究结果:1)在所有比赛中,9项技战术表现指标(射门次数、射正次数、射正率、定位球射门次数、突破进入罚球区次数、控球率、传球成功率、解围成功次数和防守反击次数)和3项跑动表现指标(本方控球时跑动距离、进攻三区跑动距离和对方罚球区跑动距离)使比赛获胜概率显著提升。对方控球时跑动距离则使获胜概率显著下降;2)在比分均衡比赛中,5项技战术表现指标(射门率、定位球射门次数、控球率、传球成功率和解围成功次数)和3项跑动表现指标(本方控球时跑动距离、进攻三区跑动距离和对方罚球区跑动距离)使比赛获胜概率显著提升。而向前传球次数、低强度跑距离、中强度跑距离、对方控球时跑动距离4项比赛表现指标则使获胜概率显著下降。研究表明,FIFA世界杯获胜球队在立足于防守的基础上,以防守反击和定位球作为主要进攻和得分手段,表现出与联赛球队不同的比赛策略。因此,各级球队在备战时应根据赛制和对手实力情况作出针对性的战术部署。 相似文献
15.
A home field advantage is given when the home team wins more than half of the games under home conditions. For team sports, this advantage has been well-established in many studies. The present study examines the home field advantage for individual sports on the example of table tennis. Therefore, all games of the men’s first German National League of table tennis (n?=?406) were analyzed for the seasons 2008/2009 to 2012/2013. There was a home field advantage of 51.48?%. A more specific measure for the home field advantage is to look at single games (“best-of-five” modus), where the home teams won more games (2.01 per competition) than the away teams (1.95 per competition). Both results were statistically not significant. A statistically significant correlation between the size of the home field advantage and the number of spectators was found, as well as an advantage by competition rules of the home team in the opening game, whereas the travel distances of the away teams did not affect the results. Accordingly, the home field advantage is less pronounced in individual sports than in team sports. The player’s performance, however, is positively influenced by the social support of home spectators and the specific competition rules. 相似文献
16.
运用数理统计和逻辑分析等研究方法,并使用中国足协技术统计软件对2011赛季中超联赛辽宁宏运足球队全年30场主客场比赛以及中超其余15支球队共计240场比赛进行了统计分析,试图通过统计数据客观描述2011赛季辽宁宏运足球队的整体技战术特征以及存在的主要问题,为辽宁足球的再次振兴以及辽宁宏运足球队征战下赛季的中超联赛提供理论参考,为我国足球整体技战术水平的提升提供借鉴。 相似文献
17.
18.
The aims of this study were (1) to compare water polo game-related statistics by context (winning and losing teams) and sex (men and women), and (2) to identify characteristics discriminating the performances for each sex. The game-related statistics of the 64 matches (44 men's and 20 women's) played in the final phase of the Olympic Games held in Beijing in 2008 were analysed. Unpaired t-tests compared winners and losers and men and women, and confidence intervals and effect sizes of the differences were calculated. The results were subjected to a discriminant analysis to identify the differentiating game-related statistics of the winning and losing teams. The results showed the differences between winning and losing men's teams to be in both defence and offence, whereas in women's teams they were only in offence. In men's games, passing (assists), aggressive play (exclusions), centre position effectiveness (centre shots), and goalkeeper defence (goalkeeper-blocked 5-m shots) predominated, whereas in women's games the play was more dynamic (possessions). The variable that most discriminated performance in men was goalkeeper-blocked shots, and in women shooting effectiveness (shots). These results should help coaches when planning training and competition. 相似文献
19.
王欣 《体育科技文献通报》2010,18(10):18-19,34
中国国奥男子足球队在北京奥运会足球比赛上的表现大家看得清清楚楚,虽然国奥队在比赛前国人都寄予了厚望,但通过三场比赛,我们看到了中国足球同世界足球的差距,特别是同世界二流球队的比赛,我们的体力、技战术水平、足球意识都与世界二流球队有一定的差距,更不用说和世界主流球队的差距了。本文主要从国奥队技战术水平、心理素质、足球意识等方面阐述中国足球与世界足球的差距,让我们看到中国足球的不足,以及如何学习国外先进的足球理念和技术,并能在实际运用中加以消化和利用。 相似文献
20.
《European Journal of Sport Science》2013,13(6):369-372
Abstract The aim of the present study was to identify the game-related statistics that discriminate between season-long successful and unsuccessful basketball teams participating in the Spanish Basketball League (LEB1). The sample included all 145 average records per season from the 870 games played between the 2000–2001 and the 2005–2006 regular seasons. The following game-related statistics were gathered from the official box scores of the Spanish Basketball Federation: 2- and 3-point field-goal attempts (both successful and unsuccessful), free-throws (both successful and unsuccessful), defensive and offensive rebounds, assists, steals, turnovers, blocks (both made and received), and fouls (both committed and received). To control for season variability, all results were normalized to minutes played each season and then converted to z-scores. The results allowed discrimination between best and worst teams’ performances through the following game-related statistics: assists (SC=0.47), steals (SC=0.34), and blocks (SC=0.30). The function obtained correctly classified 82.4% of the cases. In conclusion, season-long performance may be supported by players’ and teams’ passing skills and defensive preparation. 相似文献