Thanks for these videos and others on OA of the knees. They are helpful. I am going to watch your other videos on squats. I feel that wall squats are helping me. About 10 days ago, there was a report that wall squats and planks done isometrically lowered blood pressure more than any other kind of exercise, such as running and hiit. It recommended holding these positions for up to 2 minutes and doing 4 sets of 3 wall squats or planks, with a couple of minutes of rest in between, 3 days/week. I have been doing both exercises, though not yet 4 sets. With my back against the wall, I have, over time, gradually been able to slide down into a seated position and I have gradually increased the time in this position. Sometimes, I can do 2 minutes, sometimes 1 minute. Depends on how my knees feel. If I feel too much pressure, I stop. Yesterday, I squatted for 2 1/2 minutes, but today, I could only squat for 1 minute. So, I am getting the blood pressure lowering effect of these squats and my knees feel good afterwards. Using the wall for support is a good way to get into doing squats. But I would encourage anyone not to push through pain.
@newyorkguy thanks for sharing your experience ~ the key is finding a type of squat that can be performed without symptoms (during and afterwards) and gradually increasing the volume and then the level of difficulty. Performing some daily conditioning exercises also supports the progression of squats-- and more importantly, the squats required in daily life.