The cushion is too thick and it is easy to hurt the waist

The cushion is too thick and it is easy to hurt the waist

Place a cushion on the waist, which can effectively support the waist, maintain the physiological flexion of the lumbar spine, increase the body comfort, but the cushion must be placed on the waist, can not be placed on the chest and back. This is because the normal human body has a total of five lumbar spine, and they do not grow in a straight line due to physiological needs, but instead are in the middle Front bulging lordosis, seen from the side, the lumbar spine is like a gentle slope. Due to this physiological feature, the waist and back cannot be placed on the same plane.

Also, cushions should not be too thick to 10 cm Thick cushions are good. When the human body presses backwards, the cushion is just compressed to 5-8 cm, which is most suitable for the lordosis of the lumbar spine; if it is too thick, it will cause excessive lumbar spine flexion.