Have constantly to deal with back problems and got the role of a physiotherapist recommended. I must say a resounding success. In particular, the exercise where you put her back on the role and then the back muscles practically rolls helps immensely. I feel after a real relaxation over the entire back and back pain have become significantly less. I'm now 10-15 reps without problems. However, I did the first time (3-5 Übrungssitzungen) only max. 5 repetitions endured because during exercise the back hurt and I partly stayed away the air. Targeted practice and appropriate breathing exercises the whole thing now but hervoragend. I always had to exhale and inhale specifically on the way back at the roles of the breast to loins, then it became more bearable. I highly recommend the role. For me it works better than the massage.