Acceleration Naperville is Chicagoland’s authority for speed, agility and sports performance development for athletes of all sports. The Acceleration system has been used by over 4,000 pro-athletes and has pre- and post-tested at least 500,000 athletes worldwide, including: Randy Moss, Darren McFadden, Brandon Marshall, Jim Thome, Shawn Alexander, Warrick Dunn, Vince Carter, Tracy McGrady, Brett Hull, and Butch Reynolds. Our patented systems have over 25 years of scientific and physiological research backing and are sure to recruit fast twitch muscle fiber in your body at unprecedented levels and provide you with tangible change in athletic ability.