Babies sit straight up naturally. But the rest of us have to put effort in to having good posture, why?
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Since I started weight lifting I am forced to have good posture, otherwise my muscles start aching almost immediately because the muscles are in an unnatural position. This makes the bad posture very uncomfortable.
It’s like this because in the west we all sit in chairs. When I traveled in Asia so so many people sat squatted like babies like it was nothing. They never stopped sitting that way
Babies want to sit up the “right way,” by spring their spines with their muscles. They play and develop their bodies by using them. Then we make them sit still for ridiculous things like circle time and direct instruction. Then they learn to slouch, support their back with their bones, because it’s not natural to sit still that long and the muscles can’t do is
More balanced function of muscles. Our posture gets worse because we get weak and tight by lounging in chairs and not utilizing muscles through their full range. Go to Eastern Asia and you’ll see plenty of adults sit with good posture effortlessly.
Chairs. Humans are not supposed to sit like that to maintain proper posture. No, I’m not talking about having back support, but about almost every way chairs are designed.
If you want to sit without back support, you either should be squatting or you should be sitting on an elevated surface such that your knees are below your hips and your feet are touching the ground. If you want to sit with back support, your knees still have to be below hip height and the back support should be such that it provides support, but not the kind that causes you to disengage your core.
Meanwhile, our chairs are designed to fuck up your posture, including, yes, including the orthopedic chairs and the chairs that claim to improve your posture and/or be easy on your back.
It’s actually more normal to slightly slouch when you’re fully grown. It’s a relaxed posture, constantly being straight up isn’t normal. You’ll even see people who work out have a slight slouch, but stand straight when flexing.
Exaggerated slouching is what’s bad & caused from bad habits & normal things we do in society such as looking down at a desk, looking at our phones, etc.
Babys have a kyphosis in its whole spine while born. (Its shaped like a c from the side) while they start to crawl they have to look forward and develop a lordosis in their cervical vertebra section. Then they learn to sit and that develops the lordosis in their lumbar secrion as well. And now they have a spine that has the right curves for a upright walking life style. Short answer is that they develop the correct type of spine curvature through very simple activities and its the natural progression for them to have the correct posture while sitting so they do. Then you put them on a chair for 20 years and its no wonder why that coul change their comterble sitting position. ( the spine in a adult human should be shaped like 2 S thats connected ) https://media.istockphoto.com/id/948647114/photo/human-vertebral-column-labeled-anatomy-side-view.jpg?s=1024×1024&w=is&k=20&c=nsoWVN0LhK6rEPBFwb8R9mgCkf9BpxZU7r45jXoU6bI=
Side note, its shaped like that to make it work a bit like a spring and help absorb the impacts from running/walking on 2 legs
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Chairs are very bad training for good posture. With your feet essentially dangling under your knees, you are able to slouch. If you’re sitting on the floor, you naturally sit with a straighter spine.
Babies haven’t gotten used to chairs yet, essentially.
They need tummy time to strengthen they’re back and so they’re not lying down so much. A v shaped cushion is to support them sitting is better for them than a seat.
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