Trained as a German elite soldier Rouven knows what it takes to make the impossible possible. His athletic history involves 10 years of soccer, 11 years of Thaiboxing and other martial arts, and a variety of running competitions (such as 100 km ultra marathon run in Bornem, Belgium). He additionally competed in several Kickboxing and Thaiboxing fights in Europe. In his 4 years as an elite German soldier he learned how to master the difficult balance between endurance and strength, performing at the highest level in both areas.

Rouven began his career as a personal trainer in Ottersberg, Germany, where he offered specialized training to numerous clients. In an effort to be at the forefront of health and fitness, Rouven traveled to North America and decided to settle in Canada. Since then he has continued to update his knowledge base through various avenues, such as courses, literature, the international institutes of Health and Physical Performance and of course his own training with top athletes.