When the chair is cushioned, the body will unconsciously lean forward, resulting in increased pressure on the lumbosacral joint and physiological curvature deformation. It is best to put a pillow on the waist to reduce joint pressure and keep the waist radian.

The calf is called the second heart of the human body. The muscles in this area can contract to promote blood flow. The return of venous blood in the leg is accomplished by the movement of calf muscles. If the leg muscles do not move when sitting, then the calf is also at rest. At this time, the process of blood flowing back to the heart of the lower body will be hindered, thus affecting the efficiency of blood conveying oxygen and nutrition to the whole body.

It can protect human skin from friction and make it soft and comfortable.

Judging from the symptoms, more attention should be paid to sitting in a single position for a long time. Compressing gluteal muscle will slow down blood circulation, induce gluteal muscle spasm, cause inflammation exudation, compress common peroneal nerve, and cause pain and discomfort. In this case, it is best to use the cushion to relieve muscle pressure, get up and exercise every half hour as far as possible, reduce joint pressure, improve muscle tension, and avoid sitting hunched in the chest to avoid physiological curvature deformation and increase the burden on the intervertebral disc.

Because most professional people work in a sitting position, if the sitting position is not good, it is obviously not conducive to the health of the spine, the buttocks are not fully filled with chair cushions, and the waist lacks effective support. Humpback and trunk lateral flexion are common bad sitting positions and important incentives for low back pain.

Wrong posture is harmful to the body, but as long as you change your posture frequently, the harm is actually greatly reduced. So, what does it mean to change positions frequently? Take the work on the desk as an example. You should get up every half hour and have a rest. Whether you go to the bathroom or stand up from your seat to move your arms and legs, it is beneficial. The activity time should be 3-5 minutes, and then continue to work. The longest continuous working time can't exceed 1 hour, and you should have a rest. If you stay at your desk for two or three hours, the pain in your neck, shoulders, back and legs will not be too far away.