One is "active take-off", a technical style characterized by taking off with legs in the second and third jumps. To this end, athletes began to take off in the air-bending their legs and lifting their knees in the air. Then quickly stretch your legs and land on the ground, so that the distance of the second jump is obviously extended. Its outstanding feature is that the first jump distance is long, and the thigh is lifted higher in the air stage before the leg is released ("high swing leg"). Then, from top to bottom, the legs hit the ground to ensure the active coordination of support and action. This way can further extend the distance of the second hop, but at the same time, it will cause the "contribution" of the third hop to the total score to decrease.
The second is the "vertical" take-off technique, which is characterized by no thigh "high swing" action, the calf gathers to the thigh, and then the leg falls vertically and touches the ground. Athletes who adopt this technical style have outstanding qualities of speed and strength.
The third is the "paddling" take-off technique, which is characterized in that after the thigh is "raised", the straight leg touches the ground actively with the "paddling" action. The main qualities of athletes adopting this technical style are strength quality and speed strength quality.
The fourth is the "running" take-off technique, which is characterized by rapid advancement in the process of triple jump. The take-off leg enters the take-off by running, and the upper body keeps running forward. The first task of athletes who adopt this technical style is to keep the speed of entering the third jump. For these athletes, the quality that plays a major role is speed quality.
Athletes can practice the first technical action more, pay more attention to the action of "rubbing the ground" with their feet in the take-off of the three jumps, swing their arms with their body movements, and keep their upper body upright and not inclined. The reason why the second step can't be lifted is that the leg strength and joint strength are not enough. Try to reduce the run-up speed properly, control the distance and height of the first jump (don't jump too high or too far), and achieve "flat jump", so that you can control the stride jump of the second jump well.