Do all kinds of aerobics quickly or slowly? I heard that doing quickly is to exercise explosiveness and speed, and doing slowly is to link endurance and strength, right?

The coach was right, but he didn't tell the whole story. Explosiveness and endurance are practiced at the same time, because when you just do a sport, you must have strength at the beginning, so you should do it quickly at this time, and insist on doing more when you don't have strength. Explosive power and endurance are exercised at the same time. Instead of practicing fast this time, practicing slowly next time will not be as effective as the first time.