At One On One, clients workout in a state-of-the-art facility with access to certified trainers, a collegiate diver, a martial artist, and trainers who have competed in figure- and bodybuilding competitions. The fitness gurus can design customized plans tailored to each client’s skills as they monitor, motivate, and encourage them to reach their goals. In the gym—which is open 24 hours a day—TVs suspended from the ceilings occupy athletes as they work up a sweat on Precor and Life Fitness treadmills and elliptical machines. Strength-training machines populate the gym floor, as do free weights, an adjacent pool, and medicine balls for clients who grow sick of standard workouts. An in-house massage therapist is available to ease tense muscles and knead away stress with Swedish, deep-tissue, and hot-stone massages.