Aeris Swopper clearly superior
Prof. Dr. Dietmar Schmidtbleicher of the Johann Wolfgang Goethe University in Frankfurt am Main issued an expert opinion for the Aeris Swopper active chair in 2003. The conclusion of the expert opinion on the activation of abdominal and back muscles when using the Swopper for normal office activities:
"TheAeris Swopper is an ideal seating instrument for office work. Due to its design features, it provokes more than double the usual. From a physiological and therefore preventive health point of view, the Aeris Swopper is clearly superior to a standard office chair.“