When we sit in the conventional way, with 90 degree angles in hip and knees, our balance and posture are poor. This affects many areas in the upper body and decreases circulation.
The poor posture that conventional chairs inevitably cause, stretches and tenses back muscles and thus decreases circulation (blood 5 litres, lymph 14 litres). The faceted joints in the spine are open, which increases the pressure on discs as much as 30 per cent. We can try to ease the pressure by using a backrest but it does not really help and, in the end, we end up not using it.
The weight of the upper body is also on the back of the thighs, the buttocks, the pelvic floor and the genital area, thus decreasing the circulation in those areas and causing swelling in the legs.
Traditional office chair, pressure on the thighs and buttocks.
Lower back pain
Genital health problems
Poor blood and lymph circulation