MoVo-TK is a “self-help program” that was developed on behalf of the “Techniker Krankenkasse” (TK), a German health insurance company, and with the valuable support by Dr. Nicole Knaack (TK Hamburg). On the basis of a brochure and an accompanying training book, users (members of the TK) are familiarized with the MoVo concept (“Motivation”) and guided step-by-step through the various phases of behavioral change (“Hoch motiviert!”). No empirical studies on the effectiveness of MoVo-TK are available as yet.