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題名 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貢獻者 體育室 關鍵詞 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 上傳時間 23-Aug-2018 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 資料類型 article dc.contributor 體育室 dc.creator (作者) 嚴雅婷 zh_TW dc.creator (作者) Yen, Ya-Ting en_US dc.creator (作者) 劉有德 zh_TW dc.creator (作者) Liu, Yeou-Teh en_US dc.date (日期) 2007-11 dc.date.accessioned 23-Aug-2018 16:30:06 (UTC+8) - dc.date.available 23-Aug-2018 16:30:06 (UTC+8) - dc.date.issued (上傳時間) 23-Aug-2018 16:30:06 (UTC+8) - dc.identifier.uri (URI) http://nccur.lib.nccu.edu.tw/handle/140.119/119524 - dc.description.abstract (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. en_US dc.format.extent 292887 bytes - dc.format.mimetype application/pdf - dc.relation (關聯) 台灣運動心理學報, Vol.11, pp.57-66 dc.subject (關鍵詞) posture stability ; one-hand catching ; secondary task ; ceiling effect en_US dc.subject (關鍵詞) 姿勢穩定性 ; 單手接球 ; 第二工作 ; 天花板效應 zh_TW dc.title (題名) The Relationship between Posture Stability and One-hand Catching en_US dc.title (題名) 姿勢穩定性與單手接球的關係 zh_TW dc.type (資料類型) article
