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Stack Experts

The best sports performance experts in the country—trainers, nutritionists, sport psychologists and others—contribute STACK's Sports Performance content. These men and women work with top athletes and teams, at both the collegiate and professional level, to help them get better and make smart training, nutrition, skills and gear choices. They regularly offer the benefits of their experience to help STACK's readers and web visitors become better athletes. Read about their backgrounds and find their articles and posts—all designed to help young athletes safely and effectively boost their performance. Learn More

Pete Holman


The American Council on Exercise® (ACE) is the world’s largest nonprofit fitness certification organization, dedicated to providing education that helps individuals live their most fit lives. After more than 25 years of providing comprehensive, unbiased scientific research impacting the fitness industry, ACE has become a leading and established resource for... Read more about ACE

Pete Holman

Adam Bornstein

Adam Bornstein is an award-winning fitness and nutrition writer and editor. Named ”one of the most influential people in health,” Bornstein was previously the editorial director for and the fitness editor for "Men’s Health" magazine. He is the author of "Man 2.0: Engineering the Alpha" and five other... Read more about Adam Bornstein

Pete Holman

Adam Kessler

Adam Kessler is a speed coach who has worked with state championship teams, as well as with athletes in different sports, many of whom have competed in the NBA, NFL and overseas. He is the owner of Fitness Planning Consultants (Columbus, Ohio), and he is the founder of, a... Read more about Adam Kessler

Pete Holman

Adam Lockhart

Adam Lockhart is the head strength and conditioning coach at Crash Conditioning in Calgary, Alberta, where many top hockey players and prospects train, including NHL defensemen Duncan Keith and Mike Green. His coaching strengths are in speed and agility training, as well as Olympic weightlifting. He has coached members of... Read more about Adam Lockhart

Pete Holman

Adam Redmond

Adam Redmond, CSCS, owns RedTech Innovations, a software development company that analyzes the stride of hockey players. He also trains athletes at Crash Conditioning, and he has worked for more than a decade with Steve Serdachny, the Edmonton Oilers’ skating and skills coach. Redmond played hockey for the University of... Read more about Adam Redmond

Pete Holman

Adam Vogel

Adam Vogel is the founder of Pure Performance Training (Needham, Mass.) He began his training career working with members of Northeastern University’s football, hockey and lacrosse teams. From there, he expanded into developing strength training programs for the general population and corrective exercise programs for post-rehabilitative patients. Vogel was the Director... Read more about Adam Vogel

Pete Holman

Alan Stein

Alan Stein is the owner of Stronger Team and the head strength and conditioning coach for the nationally-renowned DeMatha Catholic High School boy’s basketball program. A performance consultant for Nike Basketball as well as the head conditioning coach for the annual McDonald’s All-American game, the Jordan Brand Classic and the... Read more about Alan Stein

Pete Holman

Alessandro Brazzit

Alessandro Brazzit is the strength and conditioning coach for junior performance development at FC Treviso. He has worked as a strength and conditioning coach with several high school basketball teams in Italy and as a personal trainer in Australia. He received his M.S. in Sport Science from the University of... Read more about Alessandro Brazzit

Pete Holman

Alex Boyd

Alex Boyd currently serves as an assistant strength and conditioning coach at Middle Tennessee State University, where she works with the women’s volleyball, soccer and softball programs. She previously served as a graduate assistant strength and conditioning coach at Eastern Illinois University and as a sports performance intern at Stanford... Read more about Alex Boyd

Pete Holman

Ali Christoph

Ali Christoph is a college recruiting advisor with the Student-Athlete Showcase. She is a graduate of the University of Tennessee, where she played varsity soccer. During her college career, she was a three-time All-American, ESPN’s Player of the Year and SEC Co-Player of the Year. A two-time captain, she helped... Read more about Ali Christoph

Pete Holman

Ali Hyatt

Ali Hyatt is a marketer and writer with a background in creating successful brand strategies and products for consumer, athletic and apparel brands. She has also worked on the development of and strategy for a mobile health tracking device. She is always on the lookout for new mobile and digital... Read more about Ali Hyatt

Pete Holman

Allen Langford

Allen Langford is the director of performance coaches at Athletic Body Mechanics in Houston. A former four-year starting cornerback at the University of Wisconsin, he was named academic All-Big Ten, All-Big Ten (twice) and team MVP in 2008. He graduated with a degree in Business and Communications. After interning at... Read more about Allen Langford