15-year-old junior high school students 50 meters 6 seconds 86? How to improve? (Internal details)

6.8 seconds is a very common achievement for boys in grade three. Of course, you didn't play your best. If the conditions are good, I believe your grades will be better (estimated at 6.3 ~ 6.4 seconds).

Binding sandbags is a weight-bearing exercise. The purpose of weight-bearing exercise is to improve your leg strength, joint strength, and your ability to accelerate running. Tie sandbags to do leg lifting, jumping, reverse pedaling and other exercises. These exercises can enhance the above abilities, thus improving your 50-meter performance. I wonder if you have any sand clothes. Your sandbag is too small, and the effect is not obvious.

You don't have to tie it for running practice. Doing more 30-meter, 50-meter and 100-meter running exercises will enhance your running ability, acceleration ability and speed endurance. In addition, we should pay attention to the exercise of lumbosacral muscles (lifting ribs and legs, sit-ups, etc.). ). Lumbosacral muscles are the axis of the body, and the requirements for sprinting are also very high.