Despite recently going to a gym for aerobics and strengthening, I am developing a new bad habit. I am plopping down in the chair when I'm off or fatigued. This is inconsistent but I know better and need to address it.
I have been a Physical Therapist since 1975 and have seen many patients associated with disc problems and compression fractures of the spine from this behavior.
The solution is to slowly lower your butt down in the chair using and strengthening the same muscles that lift up. There are 3 muscle actions. Concentric which is lifting: butt up out of the chair. Isometric which is holding still half way up and eccentric which is the lowering back down. When we lower slowly or better yet, hold still a second, we are improving the muscles that lift the butt up.
If it seems very difficult to start it should be done in a taller chair using your arms on the armrests... uses the same upper body muscles that lift us up.
Now I need to kindly practice what I preach.