Before choosing the right seat surface material, we first need to study the related requirements of human body temperature and humidity comfort. When the ambient temperature is neutral, the human body will feel comfortable, and the human body will maintain a thermal balance with the external environment, neither sweating nor too cold. When this balance is broken, the human body will generate more heat through chills, or excrete heat by evaporation in the form of evaporation. Therefore, whether the body temperature can be properly maintained or the heat is released in time becomes an important measure of the chair material. index.
The normal human body has three physiological curvatures. Because of physiological requirements, they do not grow in a straight line. The thoracic vertebrae are convex, and the cervical and lumbar vertebrae are convex forward. From the side, the spine is like the connection of two S. Due to this physiological feature, the waist and back cannot be placed in the same plane. Therefore, heat
If you want to achieve a comfortable sitting posture, the design of the back should conform to the natural spine curve. Therefore, a well-designed work chair should have the following two support points for the back of the human body:
1. There is an adjustable surface on the upper back to support the vestibular thoracic vertebrae.
2. There is an adjustable lumbar pad at the back waist to support the anterior lumbar vertebrae.
3. Can adjust the neck support. For users who need to relax their head and neck often, the height and angle of the neck support determine the fatigue of your cervical spine. A reasonable neck height should be adjusted to the third to seventh sections of the cervical spine. The cervical vertebrae receive the necessary support to effectively relieve the fatigue of the cervical spine. An adjustable neck pillow at the head and neck to support the anterior convex cervical vertebra is essential for relieving fatigue.