[Influence of physical activity on mental well-being and psychiatric disorders].

It has been shown that endurance as well as resistance training improves mental well-being in the athlete. In patients with psychiatric disorders, physical exercise diminishes clinical symptoms. Especially in patients with depression, endurance exercise improves mood. Physical training has to be integrated in a concept due to the fact the physical exercise can not replace medicinal therapy. It has to be postulated that improved mood is a result of increased endogenous opioids.