I Have Had Polio In My Right Leg Since The

I have had Polio in my right leg since the age of 3. It wasn't a major issue until I realised that I couldn't run for more than a mile, my right leg tires severely, my right leg has lesser stamina and I have a slight limp while walking. My right leg is shorter in length by an or two, thinner by a few inches throughout and my foot is one inch shorter. I wanted to know if it can be cured 100% only by limb strengthening exercises. Thanks.