Posterior abdominal muscles, sit-ups, or follow the video of abdominal muscle ripper X.
Tuesday back, hard pull, 6 groups, 10- 20 strokes per group, rowing 4 groups, about 20 strokes per group, pull-ups, or dumbbells.
Rowing with one hand, four groups, 20 strokes in each group, two kinds of equipment. Don't know the name, just ask the coach.
On Wednesday, shoulder, barbell pressure, 4 groups, each group 10-20, dumbbell sitting pressure 4 groups, each group 20 times, dumbbell standing bird 4 groups, each group 15-20 times, (this action is the essence, very painful, but the effect is very good), dumbbell shrugs.
This is basically an infinite loop. In the meantime, you change some movements. Basically, if you practice for a month, you can do other moves while watching others practice. Do abdominal exercises every time, at least 4 times a week.
Squat your legs, just like sprinting, just practice two more devices. You can go 3-4 times a week, just make reasonable arrangements yourself. I have practiced this plan for three years, which is my own systematic summary.