1. Sitting and working for a long time.
2. Often feel cervical and lumbar pain.
3. Always feel uncomfortable and unnatural.
If you hit one of these points, it is recommended that you quickly change to an ergonomic chair. The rich adjustability of the ergonomic chair allows you to comfortably maintain a relatively healthy sitting posture. The support for the lumbar spine, waist, and shoulders, and the support for the arms can greatly reduce the burden on the lumbar spine and arms. In addition to sitting comfortably, it can also reduce lumbar spine diseases caused by prolonged sitting.
The principle of the ergonomic chair
First, the human body is not built to sit for long periods of time. As can be seen from the above figure, from the standing position to the sitting position, the disc bones are inclined forward, the sacral inclination becomes smaller, and the lumbar spine curve becomes flat. A healthy standing lumbar spine curve angle is 20°-45° while sitting without lumbar support reduces the curve angle by 50%.
This change in the lumbar curve angle will increase the internal pressure of the third lumbar intervertebral disc by more than 40%, and will also lead to muscle dislocation, resulting in muscle pain, back pain, and other phenomena.
One of the important functions of the ergonomic chair is to support the lordosis of the third and fourth lumbar vertebrae through the lumbar pillow (lumbar support) to reduce the pressure on the lumbar intervertebral disc, thereby reducing low back pain. Secondly, the back of the chair is tilted back at about 100°, which can make the angle between the trunk and the thighs greater than 90°, which also helps to reduce the pressure on the back.
In addition, the adjustable functions of armrests, chair height, seat depth, backrest, etc. constitute a complete ergonomic chair.
Summarize the principle of the ergonomic chair in one sentence, through the lumbar support and other adjustable functions, reduce the pressure on the lumbar spine, and provide a comfortable and correct sitting posture.
Post time: Aug-17-2022