向手球初学者教授假动作

David Henigman, Katarina Ohnjec
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引用次数: 1

摘要

本初步研究的目的是评估一个为期两个月的训练计划,通过“移动对手”的手,来提高单次向前假动作向左移动并向右移动,以及单次向前假动作向右移动并向左移动。青少年男子手球运动员16名,年龄9.64±0.87岁。该计划在两个月内实施,其中进行了18次(35%)培训,以提高假动作技能,而总共进行了52次培训。期初完成初始录像,期末完成最终录像。视频由三位专家进行分析,使用评分表和详细的评分标准。对两个变量确定了描述性统计的基本参数。通过信度(Cronbach’s α)和均匀性(平均项目相互关系)分析专家估计贡献的度量特征。采用非参数(Wilcoxon t检验)方法分析不同时间点假动作表现水平的变化。结果表明,试验具有良好的信度和均匀性(α1=0.90;r1 = 0.80;α2 = 0.86;r2 = 0.87)。通过对结果的分析,发现运动技能习得的初始状态和最终状态之间存在显著差异(T1 = 114.5, p= 0.01;T2 = 7.00;p = 0.01)。限制因素可以从该实体的样本量,对照组的缺失以及仪器的验证评估中看出。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Teaching feints to handball beginners
The aim of this preliminary research was the evaluation of a two-month program for improvement of single forward feint to the left with passage to the right, and single forward feint to the right with passage to the left by „shifting opponents” hand. Sixteen young male handball players, aged 9.64 ± 0.87 years, participated in this study. The program was being implemented in two months, in which 18 training sessions (35%) were conducted for the improvement of feint skills, from 52 training sessions overall. Initial video recording was accomplished at the beginning of the period, and final video recording at the end. Videos were analyzed by three experts, using grading list and detailed grading criteria. The basic parameters of descriptive statistics were determined for both variables. The metric characteristics of the expert estimation contribution were analysed through measures of reliability (Cronbach's α) and homogeneity (average item intercorrelation). The non - parametric (Wilcoxon t-test) method was used to analyse changes in the levels of feint performance at different time points. The results indicate satisfactory reliability and homogeneity of the tests (α1=0.90; r1=0.80; α2 =0.86; r2=0.87). By insight into results, the significant difference is spotted between the initial and final state of both motor skills acquisition (T1 = 114.5, p= 0.01; T2 =7.00; p= 0.01). The limiting factors can be seen in the sample size of this entity, the absence of the control group as well as the validated evaluation of the instrument.
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