Bar stool seat tilt angle design: the artistic embodiment of ergonomics

Weight distribution of the upper body and sitting stability
When the human body is in a sitting position, the weight of the upper body is mainly concentrated on the buttocks, waist and back. The traditional upright seat design often ignores this weight distribution feature, resulting in excessive pressure on the buttocks and waist after sitting for a long time, which can easily cause discomfort or even pain. The design of the bar stool effectively disperses the pressure in these areas by adjusting the seat tilt angle. Proper tilt not only releases the pressure near the buttocks, but also promotes blood circulation and reduces the stiffness caused by maintaining the same posture for a long time.

Scientific setting of tilt angle: wisdom of 3 to 5 degrees
Based on the principles of ergonomics, the seat of the bar stool is usually designed to tilt backwards, and the tilt angle is controlled between 3 and 5 degrees. This design is not a random move, but the best range obtained after repeated research and testing. The 3-degree tilt angle can gently guide the body to lean back, which is neither too radical to cause customers to lose their sense of balance, nor too gentle to lose the effect of dispersing pressure. 5 degrees is the upper limit, which ensures that customers can maintain a stable sitting posture even in the most relaxed state and avoid sliding out of the seat due to excessive tilt. This design not only improves the stability of the sitting posture, but also enhances the customer's sense of security.

Reduce the pressure on the ischial tuberosity and optimize the distribution of upper body weight
The backward tilted seat design also has an important function, which is to reduce the pressure on the ischial tuberosity (the two protruding bones under the buttocks). In an upright sitting position, the ischial tuberosity often bears most of the weight of the upper body. This will cause local blood circulation to be poor and produce soreness for a long time. The tilt design of the bar stool allows the torso to naturally move back to the backrest. This slight change greatly improves the distribution of upper body weight, allowing the pressure originally concentrated on the ischial tuberosity to be dispersed to the entire buttocks and even the thighs, thereby effectively relieving the pressure in this area and improving the overall comfort.

Reduce the force on the lower limb muscles and reduce fatigue
In addition, the tilt design of the bar stool also takes into account the force on the lower limb muscles. When sitting upright, the lower limb muscles need to exert force continuously to maintain body balance, which can easily cause muscle fatigue over a long period of time. The inclined seat design reduces the force on the lower limb muscles, especially at the knees and ankles, by changing the position of the body's center of gravity. This design not only helps reduce lower limb fatigue caused by long-term sitting, but also can prevent varicose veins and other health problems caused by long-term sitting to a certain extent.