挺舉、抓舉動作之槓鈴中心於垂直矢狀面位移之差異分析

The Analysis of Sagittal Plane Displacements of Barbell Center in Clean & Jerk and Snatch Movement

蔣明雄(Ming-Shiung Chiang)

舉重 ； 提鈴期 ； 發力期 ； weightlifting ； the first pull phase ； the second pull phase

輔仁大學體育學刊

17期（2018 / 07 / 31）

164 - 173

繁體中文

研究目的：探討優秀舉重選手挺舉、抓舉試舉最佳成績之80%、85%及90%重量之動作過程中，在提鈴期至發力期槓鈴中心之垂直矢狀面位移之個別差異，並比較兩者槓鈴中心於垂直矢狀面位移的差異。方法：以五名大專女子舉重選手為受試者，利用三台數位攝影機（60Hz）拍攝受試者抓舉動作，再利用Ariel Performance Analysis System（APAS）動作分析軟體進行資料分析，來獲得槓鈴中心之矢狀面位移參數，並分析不同試舉重量、兩種試舉動做之間的槓鈴中心之矢狀面位移差異。結果：挺舉時，隨著試舉重量的增加，槓鈴於矢狀面的位移差距有遞減的趨勢。抓舉時，位移差距以抓舉85%重量時最高、其次是90%重量、最小是80%重量。無論在試舉何種重量負荷時，挺舉動作的槓鈴中心於垂直矢狀面位移差距均大於抓舉動作。結論：挺舉或抓舉時，於不同試舉重量間的矢狀面位移均無顯著差異。但比較兩種試舉動作發現，於80%試舉重量時挺舉的槓鈴中心於垂直矢狀面位移差距會顯著大於抓舉。

Purpose: This study was to investigate the sagittal plane displacement of barbell during first pull phase to second pull phase that lift different weight (80%, 85% and 90% of personal optimum results) in clean & jerk and snatch technique, and compared the difference between this two techniques. Method: Subjects included 5 female elite weight lifters. Three digital cameras (60Hz) capture the weight lifts motion, and the displacement of barbell was analysis by Arial Performance Analyze system. Result: During the clean & jerk technique, the lift weight was increase that the sagittal plane displacement of barbell was decrease. In addition, the sagittal plane displacement of barbell from large to small was 85%, 90% and 80% in snatch technique. However, the sagittal plane displacement of barbell in clean & jerk lifts were large than snatch lifts, which lifting equal percentage of personal optimum results. Conclusion: In clean & jerk technique or snatch technique, there was no significant difference between different lifting weights. Nevertheless, the sagittal plane displacement of barbell that performed by clean & jerk lifts was significant large than snatch lifts, when compared in 80% of personal optimum results.

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