1 comfortable, and can sit for a long time in addition to maintaining a good body curve, a chair </ must not forget to sit comfortably, but to sit comfortably, sitting comfortably, of course, is of course very important, to keep the elasticity uneasy, and because the muscles are very important to support the body, so the good cushion is from the seat. The proper support of the body can reduce fatigue.
2 A three degree curved surface seat which must conform to the human body curve can increase the contact area between the bottom of the thigh and the buttocks and the seat, so that the pressure is evenly distributed and not concentrated at a certain point. At the same time, the effect of stabilizing the pelvis is also stable because of a slight tilt, so as to avoid sliding in front of the seat, and in addition, a round seat dign can also be made. Reducing friction and contact inside the knee is beneficial to health.
3 when the chair's matching degree is in the purchase, if the chair is very high, the chance of being selected is also bigger. For example, the chair can make the different adjustment with the user's body movement, because the user can't have only one posture, if the chair is dead, the chair is useless.
4 fast, light, accurate height adjustment device each person needs different height, but the height of the table is fixed, so whether the chair can adjust the height is one of the most important conditions, because the high chair will allow the user's feet to hang in the air and oppress the blood vessels in this part. It causes blood circulation and poor sitting posture, but too low chair can also reduce the contact surface of the chair with the body, the pressure is concentrated near the sciatic nodule, the small angle between the thighs and the trunk can also oppress the viscera. Most importantly, the too low chair will make the table look too high and the hands must be lifted to flat in order to smooth. On the desktop, there will be pain in the shoulders and arms. Generally speaking, the current height adjustment devices are all air pressure. When adjusting, they can be easily adjusted and the accuracy is high.
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