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    题名: The Relationship between Posture Stability and One-hand Catching
    姿勢穩定性與單手接球的關係
    作者: 嚴雅婷
    Yen, Ya-Ting
    劉有德
    Liu, Yeou-Teh
    贡献者: 體育室
    关键词:  posture stability ; one-hand catching ; secondary task ; ceiling effect
    姿勢穩定性 ; 單手接球 ; 第二工作 ; 天花板效應
    日期: 2007-11
    上传时间: 2018-08-23 16:30:06 (UTC+8)
    摘要: The purpose of this study was to explore the relationship between postural stability and one-hand catching from the perspective of relative proficiency of the two motor skills and the influence of the secondary task. Nine right-handed and one left-handed female college students majoring in physical education without prior experience in standing on the stabilometer participated in this study. All the participants practiced on the stabilometer 20 trials a day (each trial lasted for 30 seconds), 3 days a week for 4 weeks. Balancing time and number of balls caught were examined for the pre-test, mid-test, post-test and one-month retention-test, which included standing on the stabilometer only and those plus one-hand ball-catching (with preferred and non-preferred hand). The movements of the stabilometer were captured by a PhaseSpace motion digitizing system to derive the frequency and the amplitude of the platform. The results were as following: 1. The balancing time significantly improved with practice, F(subscript (2.37, 21.29))=91.02, p<0.5, the continuing improved postural stability was observed through the addition of the secondary task of one-hand catching. 2. Although there was no difference between the preferred and non-preferred hand in the number of balls caught on the stabilometer at all tests, F(subscript (1, 9))=0.17, p=0.687, there were significantly more balls caught with non-preferred hand while standing on the ground than standing on the stabilometer at pre-test, t(subscript (9))=2.39, p<.05. 3. The frequency of the platform significantly increased and the amplitude significantly decreased after practice. To sum up, posture stability could be considered as a more skilled task when performing another task, and its importance required a secondary task to reveal. The less familiar skill would be easily subject to the perturbation of the imposed task when 2 tasks were asked to perform simultaneously. The improvement of the unfamiliar skill could lessen the perturbation effect of the imposed task.
    關聯: 台灣運動心理學報, Vol.11, pp.57-66
    数据类型: article
    显示于类别:[體育室] 期刊論文

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