Combining strength and flexibility training, such as through ATG split squats, can be effective for restoring mobility and enabling full squats.

“something like a atg split squat where you're going full range of motion on the front leg stretching out the back leg you're engaged the whole time is it a strength exercise is it a stretch it's a strength stretch exercise and for a lot of people spending hour upon hour separately training strength and flexibility it might be more powerful to train these things together and that can lead to really powerful effects for restoring the ability to full Squat and to be able to use that as a strength building exercise”