Biomechanical comparison of successful snatch and unsuccessful frontward barbell drop in world-class male weightlifters
Biomechanical comparison of successful snatch and unsuccessful frontward barbell drop in world-class male weightlifters
复制标题
世界级男子举重运动员成功抓举与失败前杠铃落下的生物力学比较
DOI：
10.1080/14763141.2020.1787498
复制
发表时间：
2020
影响因子：
2.2
通讯作者：
Kubo Yasuyuki
中科院分区：
文献类型：
--
作者：
Nagao Hideyuki;Huang Zhong;Kubo Yasuyuki
本研究旨在通过对我国优秀男子举重运动员杠铃轨迹和举重动作的分析，探讨影响抓举成功的因素。抓举的动作分析是使用2015年世界举重锦标赛上录制的数字视频进行的。对22名举重相同的举重运动员的抓举成功和不成功的数据进行了分析；不成功的举重是由于杠铃向前下落。结果表明，抓举成功期后向杠铃后移与最大后向杠铃速度(Pvx-)的差值显著大于前向杠铃下落时(Dxl：P<；0.001，d>；5.0，Pvx-：P<；0.01，d>；2.0)。抓举成功的运动员在转体阶段之间的重心后移(COM)明显小于不成功的抓举(P<0.05，D&>2.0)。人们认为，在不成功的提举过程中存在过度的向后倾斜。然而，在最大杠铃高度(Dy1)方面没有发现显著差异。根据这些发现，DXL和PVX-是抓取的成功因素，而DY1不是。提示在换人阶段避免身体过度后倾，可能会影响优秀男子举重运动员抓举的成功率。
This study aimed to clarify the success factor of snatch based on barbell trajectory and lifter’s motion among elite male weightlifters. Motion analysis of snatch was conducted using digital videos recorded at the 2015 World Weightlifting Championships. Data on successful and unsuccessful snatch lifts of 22 lifters, each using the same weights, were analysed; the unsuccessful lift was due to a frontward barbell drop. Results revealed that the difference in backward barbell displacement between the turnover to catch phase (DxL) and peak backward barbell velocity (pVx-) was significantly greater in successful snatch than in frontward barbell drops (DxL: p < 0.001, d > 5.0, pVx-: p < 0.01, d > 2.0). Backward displacement of the lifters’ centre of mass (COM) between the transition to turnover phase in a successful snatch lift was significantly smaller than that in an unsuccessful lift (p < 0.05, d > 2.0). It is considered that there was excessive backward leaning during unsuccessful lifts. However, no significant difference in maximum barbell height (Dy1) was found. Based on these findings, DxL and pVx- are success factors for snatch, whereas Dy1 is not. It is suggested that avoiding excessive backward-leaning of the body in the turnover phase may vary the chances of successful snatch among elite male weightlifters.
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第二版
DOI：
--
发表时间：
2008
期刊：
影响因子：
--
作者：
Fujita J. Springer;Berlin;Schwab;M.(ed.)
通讯作者：
M.(ed.)
影响因子：
2.5
作者：
Mark DiSanto;Gary Valentine;N. Boutagy
通讯作者：
N. Boutagy
DOI：
10.1519/jsc.0b013e3181db23f4
发表时间：
2010-06-01
影响因子：
3.2
作者：
Chiu, Hung-Ta;Wang, Chih-Hung;Cheng, Kuangyou B.
通讯作者：
Cheng, Kuangyou B.
力量发展中的举重拉力
影响因子：
2.5
作者：
D. Hydock
通讯作者：
D. Hydock
DOI：
10.1519/jsc.0b013e318196b843
发表时间：
2009-03-01
影响因子：
3.2
作者：
Gourgoulis, Vassilios;Aggeloussis, Nikolaos;Mavromatis, Georgios
通讯作者：
Mavromatis, Georgios