Sepp Porta et al.\*

*1Institute of Applied Stress Research, Judendorf – Strassengel, 2Institute of Pathophysiology, Medical University of Graz, 3Institute of Mathematics and Scientific Computing, KFU Graz, 4Rehabilitation Clinique of the AUVA, Tobelbad, 5Theresianische Militärakademie, Wiener Neustadt, 6St. Anna Hospital, Herne, 1,2,3,4,5Austria 6Germany* 
