身体最长的肌肉如股直肌、股内侧肌、肌外侧肌都起于或止于髋关节,髋关节还是上、下肢配合推掷动作的桥梁。 推铅球最后用力时,由于右侧髋积极向投掷方向转动,形成超越器械。此时,股四头肌、臀大肌、卡腰肌、背胳肌被扭紧拉长,加大了工作距离,加快了最后用力推铅球动作。从唐山市中学生参加中考体育推铅球加试看,几乎大部分学生是臀部后坐髋关节留在后边,造成重心下降。使蹬腿、转髋、送髋消极和挺胸及手推拨铅球无力。笔者认为,最后用力阶段是推铅球技术的关键环节,而衡量最后用力是否合理要由用力顺序(蹬腿、转送髋、挺胸、推拨铅球)、出手 The longest muscles in the body, such as the rectus femoris, the medialis, the lateral muscles, all start and stop at the hip joint, and the hip joint is also a bridge between the upper and lower limbs for pushing action. When the last shot of the shot put, due to positive right hip rotation to the throwing direction, the formation of transcendence equipment. At this point, the quadriceps, gluteus maximus, cardia psoas muscle, skeletal muscle was tightened elongated, increasing the working distance, to speed up the final hard shot put action. From the Tangshan secondary school students to participate in the physical examination put shot put plus test, almost most of the students are hip-back hip left behind, causing the center of gravity down. Turn the kick, turn the hips, send the hip negative and chest and push the shot put weakness. The author believes that the final stage of force is a key part of the shot put technology, and to measure the last force is reasonable by the forced order (kick, transfer hip, chest, push shot), shot