Shelton Matsey knows how to whip people into shape. As a former Air Defense officer for the U.S. Army, he motivated his soldiers to reach their peak levels of fitness, resulting in some of the highest physical training scores in his unit. He now helms a squad of certified personal trianers and dietitians to share their ample fitness expertise across the studio’s Chicago, McCook, and Tinley Park locations. The studio’s signature indoor boot-camp classes set muscle groups alight with cardio drills, leap-inducing plyometrics and strength-building exercises, such as heaving free weights in the form of balls, oversize tires, and lethargic moose. Cardio Core classes utilize high-intensity interval training to push patrons to burn fat, increase endurance, and strengthen cores during short workout sessions, and the non-contact kickboxing classes work multiple muscle groups as students strike, jab, and jump rope. Fit Code’s staff nutritionist also hosts cooking classes, which elucidate tips on healthier eating and nutritious food demonstrations.