The core of the body – the so-called core – is the natural power center in the middle of the body. Its functions are very versatile: in all movements in everyday life, the Core stabilizes the spine, straightens the trunk and protects the internal organs. A multi-layered, complexly superimposed muscle system in the area of the abdomen, back and hips provides this multifunctionality. In the course of the steadily increasing back problems in the population and additionally growing appreciation of one’s own health, spinal gymnastics (coretraining) has long since proven itself as a fixed element in prevention. Especially the muscles of the trunk, the muscular protective corset, are often neglected and thus susceptible to dysfunctions and diseases of the spine, which initially usually express themselves as back pain. Target group: Participants with special risks in the musculoskeletal system, especially in the area of trunk stability and mobility of the spine without diseases requiring treatment. Course Objectives: – Strengthening physical health resources – Strengthening psychosocial health resources – Reduction of risk factors – Coping with complaints and discomfort – Building commitment to health sport activity – Stabilization of the general health well-being – Improvement of the movement conditions Course content: – Strengthening physical health resources – Strengthening psychosocial health resources – Reduction of risk factors – Coping with complaints and discomfort – Building commitment to health sport activity – Stabilization of the general health well-being – Improvement of the movement conditions 4.1.11. Contents (see lesson plans for more details) – Learning the anatomical basics of the body core – the trunk musculature. – Control of the body center through perception exercises – Proprioceptive exercise mediation for the interaction of the muscular and skeletal system – Strengthening of the muscular system of the trunk and compensation of imbalances through exercises with and without aids – Training of breathing to support the coretraining. – Effect and action knowledge on preventive measures for complaints such as back pain and tension – Everyday transfer of the course contents Methods of the course: – systematic training program for groups on the basis of sports science – Orientation to the individual physical performance levels of the participants – Involvement of the social environment – Guidance for self promotion in everyday life – practical training of different training programs especially for strengthening the muscular system of the trunk – comprehensive instructions for the subsequent continuation of the training after the ten-week program (detailed seminar documents with learning instructions)