✔ 最佳答案
Yes! Running can have such effect. Either it is going upstair or at ground level.
At least 15 minutes or more for 3 times a week.
Running too much will hurt your legs. Please do not run every day.
If you use your ankle to reach the ground first, it will make your leg thick.(personal experience).
If you use your toes to reach the ground first, your leg will be slim and small.
I think you seldom have sport activities. You need to have training for your leg and then the muscle will grow up .