Nationally recognized credentials are only the baseline of each trainer's resumé at Optimum Fitness. To top off their NSCA certifications, they all hold degrees in exercise science or a similar field, excluding easy disciplines such as medicine ball anatomy. In practice, they prioritize one-on-one interactions and customized workouts that eschew monotony in favor of motivation. Their high-intensity boot-camp classes keep guests engaged with ever-varying routines that combine calisthenics and weight training. One day, students might heave sand bags over hurdles, flip tires end over end, and complete reps of sit-ups, and the next they might swing sledgehammers, do squats across a parking lot, and push themselves on rowing machines.

In addition to group classes, they trainers lead private sessions at home or in the studio with a joint focus on exercise and dietary health. Working alongside nutritionists, wellness experts, and physical therapists—as well as the Titleist-certified golf fitness professionals who help students up their game—they inspire clients of all ages to achieve their fitness goals with positive motivation and at-home accountability via online advice.