@jsilvela I wonder! Seriously! But one actual exercise I have for my issue (tennis elbow) is this one: https://www.youtube.com/shorts/yTmEjQbWj8Q which makes the tendon where the problem lies work way harder than a button press. I should have added that actual motion is probably important too. I think the tissue fibres need actual motion to help them figure out what direction they need to line up in and little button presses fail to do that.