Anatomy and physiology
In the late 1940s, the Swedish hygienist with the imposing surname – Akerblom – after studying different seating furniture came to the conclusion that in most cases the upper back is supported by the back of a chair (armchair), while the loin is tensed.
Sitting on the “wrong” seat, a person is constantly sliding off it, toughening his/her back and leg muscles, which leads to tiredness and contributes to the development of a number of diseases.
As a result, he determined the formula of the line of the back of a chair and its lower part best fitted to human anatomical and physiological characteristics, regardless of age and stature.
CROWN armchair is developed with due regard to Akerblom line, allowing a sitting posture to maintain the natural S-shaped curve of the spine. This not only provides comfort but also minimizes the load on the muscles and bones.