The Upper-Crossed Syndrome is a chronic, inflammatory and degenerative disease of the musculoskeletal system. An unnatural and / or permanently static posture and repetitive movement patterns lead to incorrect loading on the body. As a result, the locomotor apparatus reacts by adapting the muscles. An imbalance between weakened and tense muscle groups becomes persistent. This imbalance can lead to the development of musculoskeletal conditions. However, this muscular mismatch can be improved by specifically strengthening the weakened muscles. The aim of this sports study is to identify exercises that specifically strengthen muscles that are weakened in the Upper-Crossed syndrome. Therefore, possibly preventing the development of an imbalance and subsequently, the development of such condition.