office chair makers Instructions on how to adjust your ergonomic chair
Rao Peilun, professor of human factors and ergonomics at Tsinghua University, gave us a formula - "a high degree of matching, support in place, not moving."
Adjustable is the height of the cushion itself, and secondly the height of the armrest that can be adjusted, then the angle of inclination of the front, rear and rear of our backrest is adjustable when sitting down.
In addition, office chair makers tell you that you can also adjust the shoulder, head support of the site, which is the most basic part can be adjusted. So more comfortable, reasonable height is formed by the thigh and calf angle, slightly less than 90 °.
From the side view, you can see the forearm, boom angle is about 90 °. Then look at the positive arm, arm and body angle is about 10 °. This is a more ideal, comfortable armrest height.