Planet Fitness embodies a judgment-free zone where guests of all ages and fitness levels can sculpt their physiques with myriad aerobic and strength-training options within a friendly, down-to-earth atmosphere. Patrons may chisel, strengthen, and balloon muscles by pushing and pulling the extensive selection of brand-name equipment and free weights. With the help of a trained instructor, guests can design a custom workout program based on exercise history, medical background, and goals of completing an underwater bicycle race. Thirty-minute small-group classes concentrate on strengthening and toning specific body parts, and others promote salubrious bodies with full-body circuit workouts designed to give each and every lackadaisical muscle a Popeye-like infusion of metaphorical spinach.