The most important thing in 100 meters is the starting reaction and the acceleration process. Press the center of gravity and start in a figure eight. Usually pay attention to training the swing arm and core strength of waist and abdomen. Generally, lifting tires is enough. Hitting the line action, pressing the head. Not to mention explosive power, 80% depends on talent.
In the 200-meter cornering technique, pay attention to the inclination of the body. Maybe it's due to lack of strength. Generally, I can only use 9.5% of the maximum speed in corners to ensure the full sprint on the straights.
Start in a curve and run on a tangent line, allowing for a short straight-line acceleration process.
Encyclopedia: The 400 meters is recognized as the most difficult event to practice in sports track events, and it is the most demanding event for athletes' physical fitness. Especially the final 100-meter sprint, where the human body's motor organs and internal organs complete maximum-intensity work under conditions of massive hypoxia, is an extreme-intensity exercise.
The 400 meters is more complicated. The most important thing is physical distribution, relaxation running, and the last 100 meters.
My summary is to relax running. The first 200 meters are relaxed running at 8.50% of the maximum speed, and the last corner drops to 70%, because overcoming centrifugal force consumes a lot of physical energy, and it is already reaching its limit. . After the bend, just go for it. Save your physical energy and your willpower and it would be better if you have the desire to win.
You will cross the finish line at a speed of nearly 80%