Marideth Stiller

Marideth has been immersed in the fitness industry for over 25 years.
After graduating from N.C. State University, she began her career as a
group fitness instructor in the Raleigh area. After many years of
teaching a variety of fitness disciplines, and especially after an injury to
her back, Marideth began to look for a more mindful approach to
exercise and movement.

In 2007, she began training in both pilates and
yoga disciplines, studying with The Pilates Certification Center,
Balanced Body, Power Pilates and YogaFit. After studying both the
contemporary and classical pilates approach, she eventually earned her
full Pilates Method Alliance certification as well as her 200 hour
Registered Yoga Alliance Teacher.

Marideth joined IFTA in 2004 as a continuing education provider and
certification specialist. She and her husband, Tony (also an IFTA fitness
trainer) have three beautiful girls, a goofy dog and grumpy cat.

Dedicated to the Raleigh area, you can usually find her teaching or
participating in the many boutique and specialized fitness studios in the


Nationally recognized certifications and certificates in group fitness, personal training, aqua, cycling, senior fitness, pilates, yoga, youth fitness, and many more.
Live Certifications At-Home Certifications

Earn CECs

Certification by IFTA validates your commitment to excellence. Continuing education and recertification are vital parts of this commitment.
DVD / 3.0 CECs Downloaded or Shipped Essay Articles (1.0 CEC) Downloaded or Shipped


For fitness professionals certified by AFAA, AAAI, and IFTA. Renewal is easy and cost effective.
Learn More! Renewal Forms


IFTA offers a variety of workshops available at various events and many available on video. Check out our workshops offered in a huge span of fitness categories!
Workshops Available Shop DVD Workout Videos