What's the difference between a high back chair and a low back chair?

Thu May 12 2022 Spring


High back chair "good or bad"

The question of what is "good" needs to be said in two ways:
(1) From the perspective of sitting comfort
It is generally believed that a high back should be considered a high back when the back is close to the sofa back when it is shoulder height or higher. Relatively speaking, the backrest is the most comfortable to sit around this height. Some replies said: "The sofa with high back is actually not ergonomic. When people lean on the shoulders on the high back, the waist, back and back have to be separated by a certain distance, and there is less contact between the body and the sofa." This is not necessarily true, The amount of contact surface is related to the angle of the sofa back, the convex and concave curve, and the degree of softness. The contact surface of the low-back sofa with the backrest as high as the armrest is larger? Isn't this nonsense. In addition, the height difference between people is relatively large, and there is no reference standard to compare the height and the low.
(2) From a visual and aesthetic point of view
Low-back sofas are better. Nowadays, there are more small-sized houses. The low-back will not block the background wall too much, and will not affect the visual effect. Especially when the sofa is placed in the middle, the low-back is not so annoying. A sofa with a low backrest is easy to form a perfect proportion and has a much stronger sense of fashion.
Because these two items are mutually detrimental, when choosing, look at your own needs. Middle-aged and elderly people with bad waists should choose high backrests for their shoulders, and young fashionable nests should choose low backrests.

Comparison of high back chair and other types of chairs

1. Dimensions and characteristics of the low-back sofa chair: The low-back single-seat sofa is a light rest chair.
It supports the user's waist (lumbar vertebra) with a support point. The height of the backrest of the sofa is low. The size of the sofa chair is generally about 370 mm away from the seat surface, and the angle of the backrest is also small, which is not only conducive to rest, but also Moreover, the peripheral size of the entire sofa is correspondingly reduced. This low-back single-seat sofa is more convenient to move, light, and occupies a small area.
2. The size and characteristics of the high-back sofa chair: The high-back single-seat sofa is also called an aviation seat. Its characteristic is that it has three fulcrums, which make people's waist, shoulders and back of the head lean on the curved backrest at the same time.
These three support points do not form a straight line in space, so the technical requirements for making this sofa are relatively high, and it is also difficult to choose the size of this sofa chair. When purchasing the size of this high-back sofa chair, pay attention to whether the composition of the three support points on the back is reasonable and appropriate, which can be judged by the test seat.
3. Dimensions and characteristics of ordinary sofa chairs: This kind of sofa is a common type of family sofa.
Most of these sofas are sold on the market. It has two supporting points to support the user's lumbar vertebrae and thoracic vertebrae, and can obtain the effect of matching the curved surface with the back of the body. The angle between the backrest and the seat surface of this type of sofa is very important. If the angle is too large or too small, the abdominal muscles of the user will be strong and fatigued. Similarly, the width of the sofa seat surface should not be too large, usually within 540 mm according to the standard requirements, so that the user's calf can adjust the sitting posture at will, and rest more comfortably.

What's the difference between a high back chair and a low back chair?