Then you can't practice dead meat, like those big bodybuilders. You should practice transverse muscle, which is full of explosive force like Bruce Lee 1.
I have a parkour friend who was trained in the club of our school.
1. Arm and chest muscles.
Quick push-ups, air push-ups. Inside and outside, changing the angle of push-ups is enough. Practice quickly and stick to multiple groups. 500 a day. And handstand, absolute exercise. If you don't practice, parkour will definitely not work. Parkour should lean back and lean forward. Conditional single parallel bars, come on. One of my classmates can do more than 30 patterns on the horizontal bar, and the horizontal bar can do 10 patterns. But I became a soldier this year. Hehe, he can have more than 50 parallel bars, which is depressing. He just started training in high school.
2. Sit-ups,
Abdominal muscles must be practiced. You can cooperate with parallel bars or horizontal bar training. Practice abdominal muscles sideways. If there is no contact with abdominal muscles, there is no physical ability to practice somersaults. And there is no strength.
3. Bouncing ability. There are many tutorials online. I think the most important thing is to practice running fast. Repeated sprints. The most effective. Stop jogging, parkour is not jogging, son! Jogging can't exercise thigh muscles and whole body speed and coordination.
4. Full body stretching. This must be practice. It is impossible to parkour without practicing, because parkour is the best way to exercise the coordination ability of the whole body, and it is also the exercise of muscle symmetry, so relax your muscles and don't be too stiff.