Matt Fitzgerald is a coach and training expert for PEAR Sports, an audio coaching system that learns users’ fitness levels and adjusts their workouts accordingly, so athletes are always training at the right intensity level. Unlike any other fitness trackers, PEAR guides users step by step with real-time audio feedback from coaches like Fitzgerald, who tell them when to speed up or slow down and offer useful tips to improve their form. Fitzgerald is a renowned fitness expert and certified sports nutritionist. He is the author of the Racing Weight series. His latest work is entitled "The New Rules of Marathon and Half-Marathon Nutrition: A Cutting-Edge Plan to Fuel Your Body Beyond 'the Wall.’" He has also consulted for sports nutrition companies, including Energy First, PacificHealth Labs and Next Proteins. He is a graduate of Haverford College with a B.A. in English.