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标题：Free-throw accuracy and success as a function of basketball weight in 9- to 11-year-old male players
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作者：José Luis Arias
期刊名称：Motriz. Journal of Physical Education. UNESP
印刷版ISSN：1980-6574
出版年度：2012
卷号：18
期号：2
页码：338-344
DOI：10.5016/4611
语种：English
出版社：UNESP - São Paulo State University
摘要：The goal of this study was to analyze whether participants can attain more free-throw accuracy and success by modifying basketball weight. The participants were 54 children (age: mean=10.63, SD=0.55 years) from six basketball teams. We established three situations in which the participants played four games with each of the following balls: (a) regulation ball (485 g, 69-71 cm), (b) a lighter ball (440 g, 69-71 cm), and (c) a heavier ball (540 g, 69-71 cm). The procedures that were followed were: (a) defining the variables, (b) instructing the observers and obtaining reliability, (c) monitoring the properties of the ball and filming the games, and (d) recording the data from the observation. The results revealed statistically significant differences for free-throw accuracy (χ2=1.76, df=2, p=.050) and success (χ2=5.69, df=2, p=.048). Free-throw accuracy and success were higher with the 440-g ball than with the 540-g ball.
其他摘要：The goal of this study was to analyze whether participants can attain more free-throw accuracy and success by modifying basketball weight. The participants were 54 children (age: mean=10.63, SD=0.55 years) from six basketball teams. We established three situations in which the participants played four games with each of the following balls: (a) regulation ball (485 g, 69-71 cm), (b) a lighter ball (440 g, 69-71 cm), and (c) a heavier ball (540 g, 69-71 cm). The procedures that were followed were: (a) defining the variables, (b) instructing the observers and obtaining reliability, (c) monitoring the properties of the ball and filming the games, and (d) recording the data from the observation. The results revealed statistically significant differences for free-throw accuracy (χ2=1.76, df=2, p=.050) and success (χ2=5.69, df=2, p=.048). Free-throw accuracy and success were higher with the 440-g ball than with the 540-g ball.
关键词：Mini-basketball. Children. Rule modification. Team sport. Game analysis.;mini-basketball;children;rules modification;team sport;game analysis.
其他关键词：Mini-basketball. Children. Rule modification. Team sport. Game analysis.