The foyer is neat and elegant, the music doesn't rock the building, and there are no men in the large aerobics class or the workout room across the hall. The Fitness Club for Women, in Wellesley since 1992, is a gym with a bit of finesse. In addition to a full class schedule, the fitness center houses a Pilates studio for certified Power Pilates instructor Marisa Petraglia and Future Shapes personal trainers. Child care is available for a fee.