Can you elaborate? What was your problem, and what did you do to fix it?
It was interesting.
I was very tight in the hips, but if I warmed up properly, I could squat damn near ass to ankle with perfect form.
I had pain in my right SI joint, and pain in and behind my left knee.
I could play golf, and play it fairly well, but would be tight as hell in the morning.
I would simply not listen to the mantra of: "This is what happens when you are getting older" (I was in my mid thirties, and am now quickly approaching 40).
A powerlifter I know said: "Dude, you probably have periformis syndrome."
I have always been an avid strength trainee since I was 16 (I played competitive Division I tennis).
He told me to foam roll, and that worked for a while.
I got a number of deep tissue massages and that was a very good symbiotic relationship between massage, foam rolling, training and chiropractic (chiro I would go to like once a month or when I felt it necessary).
Then a very good deep tissue massage therapist told me about the lacrosse ball (plenty of vids on youtube). It is painful as a mother, but it works.
I haven't looked back and have been squatting pain free and am nowhere near as stiff as I used to be.