I have recently started Muscle Activation Techniques (MAT) therapy as prehab for my THR. I learned that feet have 54 joints apiece, and of those, only 15-20 of mine were neurologically responsive. The other 35-40 joints didn’t work. The muscles that controlled the 15-20 joints were doing all the work...and not very well it seems. So, what happened when my feet joints turned back on? I regained one inch in lost height, from 5’2” on April 1 2019 to 5’3” on May 15, 2019. This is because I regained control of dozens of muscles that control posture and I could stand up straight again! So, I have had valgus knees for as long as I can remember (knock knees). When I bend, my knee caps point 45 degrees in, and point over the inside of my big toes. Last week, in therapy, we started on hips and found some adductor/abductor variations that refused to respond to command. We did isometrics, nerve activation, and testing - repeat cycle many times - and then I tested my knees. They bent straight over my middle toes - it was completely unbelievable to me. My ROM dramatically improved in that hour - and I did not stretch. I have to be very careful with new circuits though, because they can shut down from overuse, and muscles that have been offline for a long time need tender care, too. I wish you all the best in your search for the active and healthy years you have been looking forward to!