I can very positively grade the use of the SpinaliS chair
I use SpinaliS in my work in the eye clinic and for eye surgeries. In the clinic I have a lot of movements that especially strains the lumbar part of the spine.
The great flexibility of SpinaliS allows me to have the chair seat follow the movements of the spine. The SpinaliS chair relieves the burden on the back and distributes it evenly. Using SpinaliS, in my experience, has indirectly strengthened my back muscles and allowed me to stretch while sitting for several hours. In addition, a great mobile chair enables the continuous adaptation of the entire body to help me and my approach to operating.
The chair is also used by assistants who are also very positive regarding its use. One is constantly encouraged to be active using the entire spine and back muscles while sitting. Thus, despite sitting we strengthen our back muscles the spine is constantly in motion and thus indirectly exercises.