Fitness Trainers | Staff

Katie Thornhill

The owner of Personal Pilates Plus, Katie Thornhill, has a Bachelor of Science in exercise and sports sciences, and an Associate’s Degree as a physical therapist assistant. She is a certified personal trainer with National Strength and Conditioning Association, a certified Pilates instructor, and a certified prenatal/post-partum instructor. She has worked in the fitness and health industry for 20 years. Other specialties include stability/core training, ball exercise, and free weights. Her philosophy is facilitating a balance in life with family, education, occupation, emotional, physical, social, and spiritual wellness.

Heather Lee

Heather Lee has her Bachelor of Science in Kinesiology from the University of Colorado at Boulder in 1993. She obtained her Physical Therapists Assistant degree from Denver Technical College in 1999. Heather received her Pilates certification from the Donna McLean studio and has been using her knowledge in both a rehab setting and here in the studio. She has worked in the physical therapy setting since 1995 in sports medicine and manual therapy settings. Heather continues to work full time as a Physical Therapist Assistant. In her spare time, Heather enjoys the Colorado outdoors and telemark skiing and competes in triathlons.

Asya Rudikoff has a Bachelor of Science in Kinesiology from the University of Maryland and a Doctorate in Physical Therapy from the George Washington University. After years of dreaming, she finally moved from Baltimore to Denver with her husband and their Rottie, Odin and is very excited to be joining the Personal Pilates Plus team! She fell in love with Pilates in the rehabilitation setting while completing an orthopedic residency program at Johns Hopkins, and loves the way that it has changed the lives of her patients and clients. She is passionate about living a balanced lifestyle and can’t wait to explore the outdoors in Colorado.

Jen Duffley

Certified Pilates instructor, Jen Duffley, began her fitness journey at a very young age. A former competitive gymnast and coach, Jen was trained to work diligently, developing a sense of confidence, and an eye for form and technique. This, she believes, is the foundation to achieving the best results with any activity. Incorporating patience and a calming mind-set, Jen encourages her clients to accomplish the ultimate: core strength and balance. Jen is passionate about finding that perfect combination of mind and body, and believes that any good fitness program should be challenging and integrative.

Outside of her Pilates life, Jen enjoys skiing, biking, and traveling. Jen continues to educate herself through PhysicalMind Pilates and passes this expertise on to her clients.

Heather Phifer

Heather began her love and exploration of Pilates as a student at Personal Pilates Plus in 2008. She found Pilates to be such an invigorating and relaxing practice that it became crucial to include it in her life permanently and to explore the practices of Joseph Pilates in more depth. In 2009, Heather received her certification from the Donna McLean Studio and continues her education under the supervision of second generation Pilates masters and the senior staff at PPP. In her spare time Heather enjoys making modern, unique children’s rooms and home decor at her local business, Elevated Scraps.