以行動本位量數檢證網球底線擊球之行動特定效應
緒論:本研究探討不同球速、擊球目標大小、以及正拍與反拍等情境下,網球底線擊球表現與球速知覺的行動特定效應。方法:參與者為19名網球選手,於底線以正拍與反拍將發球機所發出不同球速的球,回擊至大或小目標區,擊球後口語評估球速度。以高速攝影拍攝擊球動作,分析動作啟動時間、準備期啟動時間、加速期啟動時間、拍-球觸擊時間,以及動作時間、準備期時間、加速期時間,解析球速知覺的行動本位量數,並比較回擊成功與失敗時的球速知覺。結果:一、不同球速、目標大小、正拍與反拍的擊球成功率沒有顯著差異。二、球速越快則越早啟動加速期;正拍與反拍動作時間沒有差異,但正拍準備期較短且加速期較長。三、不同球速的口語球速評估達顯著...
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Published in | 體育學報 Vol. 56; no. 1; pp. 91 - 106 |
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Main Authors | , , |
Format | Journal Article |
Language | Chinese |
Published |
台灣
中華民國體育學會/National Society of Physical Education, Republic of China
01.03.2023
中華民國體育學會 |
Subjects | |
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Abstract | 緒論:本研究探討不同球速、擊球目標大小、以及正拍與反拍等情境下,網球底線擊球表現與球速知覺的行動特定效應。方法:參與者為19名網球選手,於底線以正拍與反拍將發球機所發出不同球速的球,回擊至大或小目標區,擊球後口語評估球速度。以高速攝影拍攝擊球動作,分析動作啟動時間、準備期啟動時間、加速期啟動時間、拍-球觸擊時間,以及動作時間、準備期時間、加速期時間,解析球速知覺的行動本位量數,並比較回擊成功與失敗時的球速知覺。結果:一、不同球速、目標大小、正拍與反拍的擊球成功率沒有顯著差異。二、球速越快則越早啟動加速期;正拍與反拍動作時間沒有差異,但正拍準備期較短且加速期較長。三、不同球速的口語球速評估達顯著差異,擊球落點目標大小、正拍與反拍皆不影響口語球速評估。四、將加速期啟動時間視為球速知覺的行動本位量數,發現擊球成功與失敗時,口語球速知覺沒有差異,但高球速與小目標要求下,成功試作的加速期啟動時間顯著較晚。結論:一、網球選手正拍及反拍擊球成功率相同,且不受球速及目標大小影響。二、選手因應不同球速,會維持相同的動作啟動時間,並隨球速加快而提早啟動加速期,減少動作時間以及準備期與加速期時間;正拍加速期較早啟動且時間較長。三、球員能辨認各球速差異並予以評估,口語球速評估不受目標大小與正反拍影響。四、成功與失敗時的口語球速評估沒有差異,但行動本位量數顯示,在小目標要求且較快球速的情境下,回擊成功時知覺球速較慢。本研究之行動本位量數結果支持行動特定效應。 |
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AbstractList | 緒論:本研究探討不同球速、擊球目標大小、以及正拍與反拍等情境下,網球底線擊球表現與球速知覺的行動特定效應。方法:參與者為19名網球選手,於底線以正拍與反拍將發球機所發出不同球速的球,回擊至大或小目標區,擊球後口語評估球速度。以高速攝影拍攝擊球動作,分析動作啟動時間、準備期啟動時間、加速期啟動時間、拍-球觸擊時間,以及動作時間、準備期時間、加速期時間,解析球速知覺的行動本位量數,並比較回擊成功與失敗時的球速知覺。結果:一、不同球速、目標大小、正拍與反拍的擊球成功率沒有顯著差異。二、球速越快則越早啟動加速期;正拍與反拍動作時間沒有差異,但正拍準備期較短且加速期較長。三、不同球速的口語球速評估達顯著差異,擊球落點目標大小、正拍與反拍皆不影響口語球速評估。四、將加速期啟動時間視為球速知覺的行動本位量數,發現擊球成功與失敗時,口語球速知覺沒有差異,但高球速與小目標要求下,成功試作的加速期啟動時間顯著較晚。結論:一、網球選手正拍及反拍擊球成功率相同,且不受球速及目標大小影響。二、選手因應不同球速,會維持相同的動作啟動時間,並隨球速加快而提早啟動加速期,減少動作時間以及準備期與加速期時間;正拍加速期較早啟動且時間較長。三、球員能辨認各球速差異並予以評估,口語球速評估不受目標大小與正反拍影響。四、成功與失敗時的口語球速評估沒有差異,但行動本位量數顯示,在小目標要求且較快球速的情境下,回擊成功時知覺球速較慢。本研究之行動本位量數結果支持行動特定效應。 Introduction: This study aimed to examine the influence of ball speed, target size, and forehand-backhand on tennis groundstroke performance and action-specific effect on ball speed perception. Methods: Nineteen tennis players served as participants. They performed forehand and backhand ground stroke to return tennis balls to small and large targets. Tennis balls were shot by a ball machine in different speed. Ball-speed judgments were made verbally after every stroke. High-speed cameras were used to capture stroke movements and further analysis of movement initiation time (MIT), preparation initiation time (PIT), acceleration initiation time (AIT), racket-ball contact time, movement time (MT), preparation time (PT), and acceleration time (AT). We figured out what is the action-based measure for ball-speed perception in tennis ground strokes and compared ball-speed perceptions in success returns and faults. Results: 1. There was no significant difference among performances in different ball speed, target size |
Author | 許皓鈞(Hao-Jyun Shiu) 劉佳哲(Chia-Che Liu) 黃嘉君(Chia-Chun Huang) |
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SubjectTerms | backhand ball-speed perception forehand perception-action TSSCI 反拍 正拍 球速知覺 知覺-行動 |
Title | 以行動本位量數檢證網球底線擊球之行動特定效應 |
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