In this randomized controlled trial breast cancer patients will be randomized into three treatment arms:~Intervention group 1 will receive an Iyengar yoga intervention in a group setting, based on the internationally renowned yoga school of B.K.S. Iyengar, which in the context of this study mainly includes physical and relaxation exercises.~Intervention group 2 will receive a meditative yoga intervention including physical and meditation exercises and also ideologically neutral explanations of the ethical aspects of yoga.~Group 3 consists of a waiting list control group, combined with the offer to participate in a yoga intervention after 4 months.
This Study investigates the effects of two different yoga interventions on the health-related quality of life in breast cancer patients. Qualitative and quantitative data will be collected.