The biomechanical analysis of the pushing kick in the conventional free combat was aimed at the crowds with different ages and different types of skeletal muscles. The analysis precision was low. Therefore, this article put forward the biomechanical analysis of push-kick of free combat based on 3D image. Three-dimensional image technique and Hill equation were used to construct the biomechanical model of muscles of free-combat athletes and describe the leg mechanics in the kicking process. Pattern system provides an up-to-date and authoritative fuzzy model, which is an intelligent recognition algorithm. Then, the image analysis was used to build the motion model of knee joint, so as to determine the dynamic equation of knee joint of pushing kick. Based on the above model, the characteristics such as the strike force of push kick, the peak characteristic of leg joint angular velocity and the joint torque were analyzed to achieve the biomechanical analysis of the pushing kick in free combat. Experimental data show that combined the proposed biomechanical analysis method with the traditional analysis method, the precision has improved by 47.69%. Meanwhile, it is suitable for the biomechanics analysis of different free combat crowds.

中文翻译：

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基于3D无线传感器网络图像的散打前踢腿动作研究

常规自由搏击推踢的生物力学分析针对不同年龄、不同骨骼肌类型的人群。分析精度低。因此，本文提出了基于3D图像的自由搏击推踢的生物力学分析。运用三维图像技术和希尔方程构建了自由搏击运动员肌肉的生物力学模型，描述了踢腿过程中的腿部力学。模式系统提供最新的、权威的模糊模型，是一种智能识别算法。然后，利用图像分析建立膝关节运动模型，从而确定推踢膝关节的动力学方程。基于上述模型，推踢的打击力等特征，分析了腿部关节角速度和关节力矩的峰值特性，实现了自由搏击推踢的生物力学分析。实验数据表明，提出的生物力学分析方法与传统分析方法相结合，精度提高了47.69%。同时适用于不同自由战斗人群的生物力学分析。