Parkour needs all the muscles, such as the arm strength to climb the wall, the abdominal muscles to retract the legs and so on. But the most important thing is arm strength and leg (bounce). To tell the truth, it's no use going to the gym. You can only practice your physical fitness. If it is physical strength, everything is useful, but the most important thing is that sit-ups (action description Baidu) and treadmills (endurance) are normal, and no one consumes any physical strength after exercise. Supplementing carbohydrates 30 minutes before each exercise, eating protein-rich food 30 minutes after exercise, and not exercising for one hour before going to bed will affect sleep.