I found sitting posture and ergonomics always weird. I was always thinking that nobody can sit like that for a long time.
I think the most recent recommendations are to swap your seating position every now and again to not keep load on any single part for too long and to take frequent breaks to walk around.
Yep, there's not really any animal that "sits" for a long amount of time.
You're either up and moving around, sitting for maybe five minutes, or just full on flopped on the ground.
Sitting for 8 hours while being physically inactive but still alert just isn't natural for really any living thing. Even ambush predators are laying down while they wait.
That's what great about work from home.
I bounce between laying on a couch, sitting in a comfy chair, an ergonomic office chair at a desk, or standing at a counter.
If I did any of those things for 8 hrs straight, my back would be killing me.
I've always thought lumbar support pillows are the most uncomfortable, dumb thing to put in your chair and I have no idea how people sit with those for any length of time.
I swear those things have hurt me so much, I have no idea either. There was one that came with a used expensive chair I bought. I thought I was sitting in it wrong or something because I felt like I had severe back pains after just a few days.
Ok I agree but there's a caveat. If you've got a gaming setup or other situation where you want your chair to lean back (usually a knob an office chair has), then the lumbar pillow is great for gaming/theater mode
I definitely also think moving around is the way to go, but in regards to feeling uncomfortable when sitting straight, it helped me to do stretches.
I'm guessing, if you're always kind of 'curled' up, the sinews and muscles and such at the front of your body contract. So, if you then go into the straight position once in a blue moon, everything at the front of your body has to be stretched further than it usually would be, which is uncomfortable.
Well, and if you give it the ol' morning stretch, those sinews and such will be stretched beyond the normal straight sitting position, so that the normal straight sitting position is within the comfortable range...
I used to think and feel the same. That changed when mid pandemic I decided to invest in a good chair, Herman miller embody. It taught me how to sit properly, so much so that even when there's no back rest I sit with my back straight and people on occasion asked me how I do it 😁