First of all, you should move your joints, pull your arms, bend over, leg press, do some push-ups and relax your muscles.

Second, then warm up. You can jog on the treadmill for a few minutes to warm up. Or do aerobic exercise for about ten minutes, and your body sweats slightly.

Third, do some anaerobic exercise. Anaerobic exercise can also warm the body, such as squatting, pushing and pulling. These are anaerobic exercises.

Fourth, when you go to the gym to exercise, you must wear loose clothes that absorb sweat, and don't wear clothes that are too tight or inconvenient for exercise. Sportswear and running shoes are definitely necessary, and these should also be prepared before warming up.