The conventional belief that an upright, right-angled posture is optimal for the human spine is a historical artifact rather than a scientifically substantiated principle. This standard, still forms the basis for international furniture sizing (ISO and CEN), originated from Victorian-era notions of discipline and moral rectitude rather than an understanding of functional anatomy.
This cultural inheritance has dictated the geometry of schools, offices, and factories for decades, assuming that the human body can comfortably conform to a rigid, right-angled shape.
The reality, as identified by numerous researchers, is that the Emperor’s throne - the archetype of modern task chairs - was never designed for long-duration productivity or physiological preservation.
@PiousGeek Try saddle / kneeling chairs; they are easy to find and far superior to flat seats. What we call "ergonomic" seating today was based on the flawed idea that a straight posture is sustainable on a flat seat; it ain't.
@Xoli_PN It's not you. Back pain costs the United States an estimated $200 billion to $300 billion annually. The cause of 85% of back pain is unknown 🙄
@aiss3an Most "ergonomic" chairs are based on a single, flawed blueprint from the 1960s: the 90-degree angle. Our bodies aren't built like Tetris blocks, so this posture is pretty standard today, unfortunately.