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吊環團身後空翻三周下環動作技術之個案分析:以林耀輝選手為例

An Analysis of Triple Backward Circle Somersault of the Ring: A Case Study of Lin, Yao-Hui

摘要


本研究探討我國優秀體操選手實施吊環團身後空翻三周下環動作技術。採用高速攝影機(JVC-9800; 60Hz),以APAS運動影像系統進行分析,使用MRI法建立之個人化人體肢段參數,設定八個剛體肢段的人體模型,將動作實施過程分為七個位置點,個案分析林耀輝選手完成吊環團身後空翻三周下環動作的技術及影響動作完成的因素。本研究結果分述如下:一、在(第六位置)預備落地及(第七位置)落地時髖、膝關節角度過大會造成後空翻旋轉不足落地時身體重心容易向前傾;角度太小會導致後空翻旋轉過多落地時身體重心向後倒,在預備落地及落地階段唯有適中的髖、膝關節角度在多周後空翻動作落地時才能順利站住。二、吊環團身後空翻三周下環動作在預備落地及落地階段髖、膝關節角速度過大或太小皆會影響多周後空翻動作落地時的穩定性。三、失敗動作(向前)的後空翻旋轉角度不足,而失敗動作(向後)的後空翻旋轉角度過多,導致落地時身體重心水平速度產生向前及向後的快速移動,造成落地動作失敗。四、此動作技術已有一定的熟練性時,在身體重心高度與脫手後騰空時間兩種參數對吊環團身後空翻三周下環動作穩定性的影響較小。五、團身後空翻三周下環動作落地時身體重心與地面夾角角度應接近垂直但角度不宜超過90°動作落地時較容易站住。

關鍵字

體操 吊環 團身後空翻

並列摘要


The purpose of this study was to examine the performance of the elite male gymnast Lin, Yao-hui. Our subject performed a high-level tucked triple backward circle somersault (TTBCS) in the air in the gymnastic ring event. This study was to investigate excellent TTBCS to determine the landing performance. The whole process was recorded by a high-speed digital camera (JVC DVL9800U / 60Hz), and the parameter was digitized by Anal Performance Analyses System (APAS). Therefore, this study linked the rigid body model with 8 segments with side-view and the individual body segmental parameter was recorded to obtain the kinematics data. The results show that the factors of successful landing performance are as follows. First, The value of the hip joint angle (HJA) and the knee joint angle (KJA) while landing after doing TTBCS on the ring largely influence the stability of landing. Form the landing preparing phase (position 6) to the landing phase (position 7), a larger or a smaller HJA and KJA would cause CM to move forward or backward. Second, while landing, larger or smaller hip joint angular velocities affect the stability of landing. Next, the somersault turns less or over cause, during the landing phase, the horizontal velocity of CM to move forward or backward. Then, when the subject is adept, the CM height and the duration of time in the air have less influence. Finally, if the angle of CM and ground when landing is near the subject perpendicular, but no more than 90°, the subject can stand still more easily.

並列關鍵字

gymnastics ring tucked backward somersault

參考文獻


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被引用紀錄


黃勝盟、賴建廷、楊政盛、陳暉、劉宏祐、彭賢德(2022)。優秀男子競技體操選手團身後空翻之運動學分析大專體育學刊24(1),102-116。https://doi.org/10.5297%2fser.202203_24(1).0007

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