Use of cushions

With the popularity of mechanization and office computers, people who work in sitting positions are becoming more and more common. In order to prevent low back pain, some sedentary people often put a cushion on the car chair, sofa, or stool. The doctor reminded that the use of cushions to prevent back pain should also pay attention to methods.

The doctor pointed out: First, the cushion must be placed on the waist, it is incorrect to put it on the back. This is because there are 5 lumbar vertebrae in a normal human body. Due to physiological needs, they do not grow in a straight line, but a lordotic shape with the middle part protruding forward. Viewed from the side, the lumbar spine is like a small bag with a gentle slope. Due to this physiological characteristic, the waist and back cannot be placed on the same plane. Therefore, the correct sitting posture should be to raise your chest and head up. When you need to recline in a chair, keep your waist straight, leave the back of the chair, and sit back as far as possible when sitting on the sofa. Sit your hips on the bottom of the sofa, with your back close to the back of the sofa. If you put a cushion on the waist, you can effectively support the waist, maintain the physiology of the lumbar spine, balance the pressure of the lumbar spine and lumbar muscles, reduce strain, increase body comfort, prevent and improve lumbar discomfort, and stabilize the spine. benefit. Secondly, the cushion should not be too thick, preferably a cushion with a height of 10 cm. In this way, the human body is pressed backwards, which is exactly 5-8 cm, which is most in line with the physiological lordosis of the lumbar spine. Too thick will cause excessive flexion of the lumbar spine.