Depends. If youre arthritic or such, and these help you walk, you come out ahead. Being stuck on the sofa allows muscles to weaken too.
If you're looking at these to begin with, you probably have knee troubles and need something. Keeping yourself moving is important, the part about braces and weakness is about elite athletes more than aging boomers. Youll be fine.
Sorry but I have no idea. I bought them for a little extra support when I workout cause I could feel my knee giving out when I moved it a certain way. I like the way they fit and feel and they help so I’m happy