表面肌电信号在膝关节运动性损伤中的应用价值
Application Value of Surface Electromyography in Knee Joint Sports Injury

表面肌电信号是指通过皮肤表面的电极来检测神经肌肉活动的电信号，是多个运动单元的动作电位在时间和空间上叠加的综合结果，可以定量地记录神经肌肉活动的电生理特征、肌肉的疲劳程度和神经传导速度，其检测手段操作简单、无创，在运动人体科学和康复医学等领域具有重要的应用和学术价值。膝关节是是人体结构中结构最复杂的关节，它也是运动中最容易受到损伤的关节之一。膝关节周围肌肉的力量和肌肉收缩的协调性因素是膝关节运动损伤的主要发病机制，应用表面肌电可以反映膝关节周围神经肌肉的实时状态和协调性的水平，可以为膝关节运动性损伤的发生、发展和康复过程提供重要的依据，本研究旨在通过对膝关节运动性损伤的原因分析和对表面肌电在膝关节运动性损伤中的应用分析，为运动爱好者改善膝关节活动功能、提高膝关节稳定性、避免膝关节运动性损伤和加快膝关节运动性损伤后的恢复过程，提供一定的科学理论依据和保护手段。
Surface electromyographic signals refer to electrical signals that detect neuromuscular activity through electrodes on the surface of the skin. It is a comprehensive result of the action potentials of multiple motor units superimposed in time and space. It can quantitatively record the electro-physiological characteristics of neuromuscular activity. The measurement of muscle fatigue and nerve conduction speed is simple and non-invasive. It has important application and academic value in the fields of sports human science and rehabilitation medicine. The knee joint is the most complex joint in the structure of the human body. It is also one of the most vulnerable joints in sports. The strength of the muscles around the knee joint and the coordinating factors of muscle contraction are the main pathogenesis of knee sports injury. The application of surface electro-myography can reflect the real-time state and coordination level of the nerve muscles around the knee joint, which can be used for knee sports injury. This study provides an important basis for the occurrence, development, and rehabilitation of this knee. The purpose of this study is to improve knee activity for sports enthusiasts by analyzing the causes of knee sports injuries and the application of surface electromyography to knee sports injuries function, improve knee stability, avoid knee joint sports injury and speed up the recovery process after knee joint sports injury and provide a certain scientific theoretical basis and protection measures.