The Relationship between Core Stability and Naraechagi Kicks Velocity in Amateur Taekwondo Players: An Investigation

Lihao Guan, Xiangwei Meng
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Abstract

To win in taekwondo need to be able to kick faster and among the factors that influence velocity, core stability is important, but the relationship between core stability and kicking velocity in taekwondo is unclear. The aim of this study was to investigate the association between core stability and lower limb segmental COM velocity at the moment of kick. A total of 13 subjects (male. 172.6±7.3 cm. 64.3±11.78 kg. 2 9±4 years.) participated in this study. Data were captured using 13 infrared cameras at 120Hz, kinematic data were obtained using the motive motion capture system, the data were exported to Visual3D to calculate the centre of mass velocity of the left lower limbs segment at the moment of the kick, the level of core stability was measured using the Sahrmann core stability test and finally the two were analysed using Spearman rank correlation correlation. During the Naraechagi, most of the lower limb segments COM with SCST showed a strong correlation. Therefore, we believe that adding core stability training to taekwondo training has the potential to increase kicking speed. Future research may focus on the effects of stability training.
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业余跆拳道运动员核心稳定性与Naraechagi踢腿速度关系的研究
要想在跆拳道比赛中获胜,需要能够更快地踢出,而在影响速度的因素中,核心稳定性是重要的,但跆拳道核心稳定性与踢出速度之间的关系尚不清楚。本研究的目的是探讨核心稳定性与下肢段速之间的关系。共13名受试者(男性;172.6±7.3厘米。64.3±11.78公斤。(29±4岁)参加本研究。采用13台120Hz红外摄像机采集数据,采用运动捕捉系统获取运动学数据,将数据导出到Visual3D中计算出左下肢段在踢腿时刻的质心速度,采用Sahrmann核心稳定性测试测量核心稳定性水平,最后采用Spearman秩相关法对两者进行分析。在Naraechagi期间,大部分下肢节段COM与SCST表现出较强的相关性。因此,我们认为在跆拳道训练中加入核心稳定性训练有可能提高踢腿速度。未来的研究可能会关注稳定性训练的效果。
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