The highlighted finding of this study is that mental practice of the dynamic Qigong technique Wu Qin Xi causes significant modulations of EEG brain activity. Practicing the dynamic Qigong technique Wu Qin Xi mentally results in increased fronto-central midline theta activity and increases in alpha-1power in the same intensity as in physical training in eyes open-conditions. Therefore, mental practice of the dynamic Qigong technique Wu Qin Xi has the same effect on EEG brain activity as physical training considering the eyes-open condition.