Originally Posted by refugee
Due to old injury on my left ankle, i can only perform pistol squat on my right leg. In order to do pistol squat on left, i need to rest the left heel on small elevated platform.
Are there way i can improve my left heel flexibility in such case?
Since its due to injury, for the time being there is nothing wrong with squatting with your heel elevated like that. A lot of people who are new to the pistol learn it this way.
In the mean time, keep going all the way down with standard squats and work on the mobility, as well as rear foot elevated split squats, and skater squats.
How does your ankle feel when doing the basic version of the skater squat with arms out in front? The basic skater squat could be a good choice for you right now while you work on your pistol.
I'm not sure if your ankle is something that will improve with time and more practice squatting deep, depends how bad it is, I'd just say keep squatting, unless it aggravates your ankle, if anything hurts, stop doing it.