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一、髂腰肌的主要作用 髂腰肌位于脊柱腰部两侧和骨盆内,它由腰大肌和髂肌两部分组成。它的起点是腰大肌在第12胸椎体和上4个腰椎体,髂肌起于髂窝。两肌在髂窝处合成一腱,止于股骨小转子。主要功能是使大腿屈和外旋;由于它处于人体的总重心处,又是较大的肌群,起到了稳定身体重心和承上启下的作用。 国外体育专家通过对优秀短跑运动员下肢摆动阶段功率研究认为,摆动阶段髋关节肌群是主要的发力肌群,而髂腰肌正是该肌群中的核心,对提高步频和步幅起到了重要作用。
First, the main role iliopsoas iliopsoas in the spine on both sides of the lumbar and pelvis, which consists of two parts of the psoas muscle and iliac muscle. Its starting point is the pectoralis major in the 12 th thoracic vertebra and on the 4 lumbar vertebra, the iliac crest in the iliac fossa. Two muscles in the iliac fossa synthesis of a tendon, stop in the femoral trochanter. The main function is to make the thigh flexion and external rotation; because it is located in the body’s total center of gravity, but also a larger muscle group, played a stable body center of gravity and the role of up and down. Foreign sports experts through the excellent sprinter stage lower limb swing phase power study that the swing stage hip joint muscle is the main hair muscle group, and iliopsoas muscle is the core of the muscle group, to improve the pace and pace To an important role.