From an exchange student in the U.S. in 1996 to a nationally certified strength and conditioning expert, József “Yo-Yo” Szendrei has built a lifelong career around elite sports performance training. As the Owner and Coach at Gym Integrity, József is driven by a deep passion for maximizing human potential through discipline, structure, and science-based methods.

A native of Hungary, József began his U.S. academic and athletic journey at Northeastern Junior College before earning his degree from the University of Oklahoma. His coaching career launched in 2007 at Texas Tech University, and he later returned to his alma mater, working with the University of Oklahoma’s athletic program until 2015.

Over the years, József has trained athletes across a wide range of sports, including tennis, basketball, and football, guiding multiple NBA and NFL draft picks. His coaching philosophy is rooted in continuous learning and practical application. By blending hands-on experience with cutting-edge performance science, József has developed a results-driven approach that empowers athletes to reach their highest level—physically and mentally.