Tips to stair climbing and mountain sprint
Pick first one perhaps 100 meters Alpha Rush Pro long, slight increase or a staircase with 20 to 30 relatively shallow steps. Choose the intensity of your sprints so that you reach after five repetitions at the limit, but this have not been exceeded.
Once at the top, making use immediately returns to descend at a trot as "respite". Reached down again, it goes directly to the next iteration.