Sitting back at 135 degrees is best

Sitting upright is not the best position for office workers. According to Canadian and Scottish researchers, the posture of sitting upright by 90 degrees creates unnecessary pressure on the back. The best sitting posture is slightly reclining - about 135 degrees.

Sitting for a long time is easy to cause lower back pain. Data show that 32% of the population in the UK sits more than 10 hours a day. Half did not leave the chair, even when it was time for lunch. 2/3 went home to work and also sat at a place at home.

New research was conducted at Woodend Hospital in Aberdeen, Scotland. Twenty-two healthy volunteers were taken with a new type of resonance camera so they could freely move in the experiment.

In the study, the patients performed three sitting postures: slightly lowered - the body bent forward, upright 90 degrees, and leaned back about 135 degrees while the foot remained on the ground.

The researchers calculated the spine angle, bone plate height and bone movement in different positions.

3 different sitting postures.The last sitting posture, reclining at least 135 degrees is most appropriate.(Photo: BBC)

The bone plate is moved when the body's weight is placed on the spine, causing the bone disc to deviate from the position. The movement of the bone plate is most pronounced when sitting upright 90 degrees, at least in a 135-degree posture. This suggests that sitting in a comfortable position will create less strain on the bones, tendons and ligaments. Slightly seated posture reduces the height of the bone plate, resulting in increased fatigue on the last 2 bones.

The researchers concluded that sitting at 135 degrees is the best sitting posture for the back and everyone should sit that way.

Dr. Waseem Bashir of the University of Alberta, Canada, said: "Sitting in the proper posture is very important, because the pressure on the spine and ligaments over time will lead to chronic pain and long distortion. long".

"One in three people with lower back pain and sitting in one place for too long is the reason, because our bodies are not made to sit in one place," added Rishi Loatey at the British Chiropractic Association. .

MT