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韩国青年球员人选NBA
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作者 《当代韩国》 2004年第2期92-92,共1页
关键词 韩国 青年球员 NBA 河承进 篮球运动员
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不同年龄组足球运动员执行基本战术能力分析
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作者 张闯 《当代体育科技》 2018年第34期75-75,77,共2页
足球比赛的基本战术原则是一套指导与比赛空间管理有关的行为的行动规则。本研究的目的是比较两种方法的优缺点。以12~17岁青少年足球运动员的基本攻防战术原则为对象,样本包括由48名足球运动员进行的3689次战术行动。年龄类别:13岁以... 足球比赛的基本战术原则是一套指导与比赛空间管理有关的行为的行动规则。本研究的目的是比较两种方法的优缺点。以12~17岁青少年足球运动员的基本攻防战术原则为对象,样本包括由48名足球运动员进行的3689次战术行动。年龄类别:13岁以下(U-13岁)、15岁以下(U-15岁)和17岁以下(U-17岁)。采用足球战术评估系统(FUT-SAT)对战术绩效进行了测量,通过spss统计软件进行分析。结果表明:"进攻性覆盖"原则和"集中原则"得到执行。"全场进攻"和"积极防守"的战术原则更多地被年轻的足球运动员所执行。可以得出结论,基本战术原则的执行频率因比赛类别的不同而不同,这意味着对防御安全的评估。由于对进攻行动的信心和安全感增加,"进攻覆盖率"逐渐增加。 展开更多
关键词 足球 基本战术原则 青年球员 年龄
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The relationship between self-presentation concerns and pre-game affect among adolescent American football players
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作者 Leslie Podlog Marc Lochbaum +3 位作者 Jens Kleinert James Dimmock Maria Newton Stefanie Schulte 《Journal of Sport and Health Science》 SCIE 2013年第3期168-175,共8页
Background: The influence of self-presentation concerns on the adolescent sport experience has received scant empirical attention. The purpose of this investigation was to prospectively examine the relationship among... Background: The influence of self-presentation concerns on the adolescent sport experience has received scant empirical attention. The purpose of this investigation was to prospectively examine the relationship among self-presentational concerns and pre-game affective states among middle and high school aged football players. Methods: American football players (n = 112; mean age = 15.57 years) completed a measure of self-presentational concerns (SPSQ, McGowan, et al., 2008) a week prior to the measurement of selected pre-game affective states (i.e., attentiveness, self-assurance, serenity, and fear). Results: Regression analyses revealed that concerns about appearing athletically untalented negatively contributed to the significant prediction (p 〈 0.001) of pre-game attentiveness, /3 = -0.43, Radj ^2 19.5% (p 〈 0.001), and self-assurance, /3 = -0.38, R^dj = 11.9% (p 〈 0.01). Conclusion: These findings highlight the importance of reducing self-presentational concerns in promoting positive pre-game mental states that likely impact the quality of athletes' competitive play and experience. Copyright @ 2012, Shanghai University of Sport. Production and hosting by Elsevier B.V. All rights reserved. 展开更多
关键词 Attentiveness Longitudinal Self-assurance SELF-PRESENTATION
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The relative age effect has no influence on match outcome in youth soccer
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作者 Donald T.Kirkendall 《Journal of Sport and Health Science》 SCIE 2014年第4期273-278,共6页
Purpose: In age-restricted youth sport, the over-selection of athletes born in the first quarter of the year and under-selection of athletes born in the last quarter of the year has been called the relative age effe... Purpose: In age-restricted youth sport, the over-selection of athletes born in the first quarter of the year and under-selection of athletes born in the last quarter of the year has been called the relative age effect (RAE). Its existence in youth sports like soccer is well established. Why it occurs has not been identified, however, one thought is that older players, generally taller and heavier, are thought to improve the team's chances of winning. To test this assumption, birth dates and match outcome were correlated to see if teams with the oldest mean age had a systematic advantage against teams with younger mean ages. Methods: Player birth dates and team records (n = 5943 players on 371 teams; both genders; U11-U16) were obtained from the North Carolina Youth Soccer Association for the highest level of statewide youth competition. Results: The presence of an RAE was demonstrated with significant oversampling from players born in the I st vs. the 4th quarter (overall: 29.6% vs. 20.9% respectively, p 〈 0.0001). Mean team age was regressed on match outcomes (winning %, points/match, points/goal, and goals for, against, and goal difference), but there was no evidence of any systematic influence of mean team age and match outcomes, except possibly in U11 males. Conclusion: Selecting players based on physical maturity (and subsequently, on age) does not appear to have any systematic influence on match outcome or season record in youth soccer suggesting that the selection process should be focused on player ability and not on physical maturation. 展开更多
关键词 Match outcomes Relative age effect SOCCER Youth sport
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