The correct way is: if you are muscular, massage the leg muscles first to soften them. Then hold your head up, chest up and abdomen in, tiptoe up the stairs step by step, and you'd better tighten your hips. If you go down the stairs, you'd better kick and get off to avoid knee injury (if there is an elevator, you'd better take it down). It takes about 30 minutes to climb. Remember to stretch after climbing.

I used to climb the stairs for more than a month, 13 floor, and went back and forth three times. At that time, my legs were the thinnest, but I climbed up in a building that was not that high. What a pity! Plus not paying attention to diet, I got fat. So you should be careful not to get fat.