左侧支撑是指标枪最后一个交叉步左脚内侧着地后,通过左脚,左腿到肩的连线做强有力的制动和支撑用力。左侧支撑的好坏直接影响到最后用力。所谓的最后用力是指运动员保持器械由助跑获得的速度不受损失,并再继续加速向投掷方向运动中不停顿,并且充分动员参与投掷工作的肌肉群预先拉紧,又快速地收缩产生爆发力 The left side of the support refers to the last crossing of the javelin. After the left foot strikes the inside of the left foot, the left foot and left leg to the shoulder are strongly braked and supported by the connection. The quality of the left support directly affects the final force. The so-called final force refers to the athletes to maintain the speed of the device from the run-up loss, and then continue to accelerate the movement to the direction of throwing non-stop, and fully mobilize the muscle groups involved in throwing work pre-tensioning, and rapid contraction to produce explosive