Of course not. Running is going to improve so many more things than a few flights of stairs. You're already running different distances so I expect different pa

Of course not. Running is going to improve so many more things than a few flights of stairs. You're already running different distances so I expect different paces. Best thing is some sprints for vo2 max improvement and then longer runs too. This article is really for people who can't do a harder form of exercise. It's showing climbing stairs as an easier thing to do than go for a run, if you can't go for a run It is useful "especially among those unable to achieve the current physical activity recommendations" If you can do proper exercise of course do that!