"As the baby boomers age and younger families join your club, the fitness programs at your club need to stay current. One way to keep up with the ever-changing needs of your members is to offer specialty training as part of your fitness program."
Specialty training programs are vast in this industry. Here's a short list of what you could offer:
TRX Training
Mommy & Me Yoga
Triathlon Training
Couch to 5k
Flexibility and Fitness