Sciatica is irritation of the sciatic nerve that sends pain, tingling, or numbness from the lower back or buttock down one leg, and sitting makes it worse by compressing the nerve and the muscles around it.
Sciatica from sitting is irritation or compression of the sciatic nerve caused by prolonged seated pressure, tight hip muscles, and reduced movement, producing pain that radiates from the lower back or buttock down one leg.
Neutral sitting posture is a seated position where the spine keeps its natural curves, the pelvis stays balanced, and load spreads evenly across the lower back rather than concentrating in one area.
Ergonomic seating refers to chairs and desks designed to support a neutral spine and reduce the mechanical load that prolonged sitting places on the lower back.
Prolonged sitting damage is the gradual breakdown of spinal disc health, muscle balance, and posture that occurs when the body stays seated for extended periods without regular movement breaks.
