This is a nice post from Dan John.
He talks about three simple longevity tests to check “where you are”.
One of them is the sitting/standing test that got a bit of coverage recently.
I really like it as a test of basic movement. My youngest is learning to walk so is just working out the getting up portion. It’s interesting how as people get older they seem to regress back to that point.
Try it, it might be harder than you think.