Grind Shop - Home. Grind Shop Sports Performance Training is an institute of elite fitness & performance in Cincinnati, OH. When a student enrolls at the Grind Shop they will become part of a community that is built on camaraderie, support, and encouragement. We have developed a progressive system that will ensure each student to be efficient, productive and help them reach their full potential.. Grind Shop Training, Fitness, Lose Weight, Gain Muscle, Sports training, Sports Performance Training, Sprint, weight lifting, running, Olympic Lifting, performance, strength, cardio, core, flexibility, endurence, tone, abs, gluts, plyometrics, athlete, athletics, Personal training, bootcamp, private training, quickness, speed, agility, strength training, nutrition, suplements, eat healthy