The Kinematics and Surface Electromyography Characteristics of Round Kick of Martial Arts Athletes

Q4 Biochemistry, Genetics and Molecular Biology

Molecular & Cellular Biomechanics Pub Date : 2020-01-01 DOI:10.32604/mcb.2020.011236

Xin Wang

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引用次数: 1

Abstract

In order to improve the level of athletes, modern scientific and technological means can be used to understand the characteristics and rules of movement. This study mainly analyzed the whip leg technique of Sanda athletes. Taking ten athletes as an example, the kinematics and surface electromyography (sEMG) data of them were measured, calculated and sorted out when they were doing the action of round kick. The results showed that the movement completion time of the first-level athletes was shorter, 0.34 ± 0.33 s. In the stage of turning hip and hitting, the angle of hip joint increased significantly. In the stage of turning hip, there was a significant difference in the angle of hip joint between different levels of athletes (p < 0.05), and there was no significant difference in other kinematics characteristics. In the aspect of sEMG, the duration of muscle discharge of the first-level athletes was shorter, but there was no significant difference in integrated electromyogram (IEMG) and root mean square (RMS). The experimental results reveal the importance of hip joint in the course of round kick and provide some theoretical bases for improving the level of athletes and carrying out targeted training.

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武术运动员回旋踢的运动学和体表肌电特征

为了提高运动员的水平，可以利用现代科技手段来了解运动的特点和规律。本研究主要分析散打运动员的鞭腿技术。以10名运动员为例，测量、计算并整理了他们在做圆踢动作时的运动学和表面肌电图数据。结果表明:一级运动员的动作完成时间较短，为0.34±0.33 s;在转髋和击球阶段，髋关节角度明显增大。在转髋阶段，不同水平运动员髋关节角度差异有统计学意义(p < 0.05)，其他运动学特征差异无统计学意义(p < 0.05)。在肌电图方面，一级运动员的肌肉放电持续时间较短，但在综合肌电图(IEMG)和均方根(RMS)上差异无统计学意义。实验结果揭示了髋关节在踢腿过程中的重要作用，为提高运动员水平和开展针对性训练提供了一定的理论依据。

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来源期刊

Molecular & Cellular Biomechanics CELL BIOLOGYENGINEERING, BIOMEDICAL&-ENGINEERING, BIOMEDICAL

CiteScore

1.70

自引率

0.00%

发文量

期刊介绍： The field of biomechanics concerns with motion, deformation, and forces in biological systems. With the explosive progress in molecular biology, genomic engineering, bioimaging, and nanotechnology, there will be an ever-increasing generation of knowledge and information concerning the mechanobiology of genes, proteins, cells, tissues, and organs. Such information will bring new diagnostic tools, new therapeutic approaches, and new knowledge on ourselves and our interactions with our environment. It becomes apparent that biomechanics focusing on molecules, cells as well as tissues and organs is an important aspect of modern biomedical sciences. The aims of this journal are to facilitate the studies of the mechanics of biomolecules (including proteins, genes, cytoskeletons, etc.), cells (and their interactions with extracellular matrix), tissues and organs, the development of relevant advanced mathematical methods, and the discovery of biological secrets. As science concerns only with relative truth, we seek ideas that are state-of-the-art, which may be controversial, but stimulate and promote new ideas, new techniques, and new applications.