Personal Pilates Plus Staff

Katie Thornhill

The owner of Personal Pilates Plus has been in the fitness and wellness industry since 1983 and opened her personal training/fitness business in 1996.  Katie specializes in Pilates, personal fitness training and MAT-muscle activation techniques.  She graduated with a Bachelor of Science in exercise and sports sciences, with a concentration in Wellness Management from CSU in 1991.  She has been a personal trainer for 35 years and is certified through National Strength and Conditioning Association.  She earned an Associate’s Degree as a physical therapist assistant in 1998 and worked at St Anthony Central in acute neuro-trauma.  She received her Pilates certification in 1999 and has been training herself and others ever since.  Katie  and is now currently being certified in the 2nd level as a MAT, muscle activation techniques, specialist.  She is certified in pre-natal/post-partum exercise.  She taught gross anatomy, anatomy, physiology and medical terminology at CSU and DTC.  Her passion is facilitating a balance in life with family, education, occupation, emotional, physical, social, and spiritual wellness.  She loves rock climbing, river rafting, camping and all outdoor exercise (indoors, when she can’t be outside)

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.

Carrie Davidson

 I recently moved here from California and am so excited to be working at Personal Pilates Plus! I worked as a Women’s Pelvic Health Therapist for the last 10 years. There I fell in love with Pilates and completed my Comprehension Teacher training certification through Basi Pilates International.  I was able to incorporate Pilates with my patients for rehabilitation and teach group equipment and mat classes.  I specialize in pre and post natal care, back-hip and pelvic disfunction, postural alignment and women athletes. I received my 200 hour yoga certification and look forward to teaching that as well! It’s been a crazy year and I look forward to being back in the studio working with all of you and the amazing instructors here at Personal Pilates Plus.



Heidi Kullman
Hi, my name is Heidi. I am a Colorado Native. I live in Arvada with my Husband, and 3 daughters. I have been teaching Yoga for over 12 years with over 300 Hours of Yoga Teacher Training. I have experience teaching Vinyasa, Power, and Gentle Yoga Classes. I have a certification for Mat Pilates and have been consistently teaching mat classes for over 6 years. I teach a multi-level class placing a strong emphasis on form, and proper technique. I keep my classes fresh and fun. I would love to see you in one of my classes at Personal Pilates Plus in Arvada! Heidi will be teaching Thursday mornings (virtual) at 6:45am for the MAT class as well as 1 Saturday a month! Jump on over to our website and sign up!


Caitlin Reagin

Hello my name is Caitlin or Catie. I am a 28 year old Denver native. My fitness journey started back in 2015 during my undergrad when I got into my first bodybuilding competition. I enjoyed the gym atmosphere so much I went on to get my personal training certification through NASM. Although weight training was very beneficial I still felt like I wasn’t as mobile or had the core strength I was after. I discovered pilates and have never looked back! I got my pilates certification in 2018 and have been teaching ever since. I enjoy challenging my clients with challenging traditional pilates exercises especially focusing on overall body strength.

When I’m not teaching pilates I enjoy hiking with my dogs or trying new cuisine. My all time favorite food is pad Thai from Wild Ginger in Littleton, CO.



Emily Brumbaugh
Emily is passionate about living a balanced, yogic life. As a mindful movement practitioner, she finds joy in teaching others how to find physical and emotional strength. She specializes in teaching Vinyasa Yoga and Pilates for seniors. Her classes are alignment based and core centered. She likes to emphasize the importance of breath, encouraging students to move with their own breath and listen to the wisdom of the body. 

Yoga has taught her how to find peace within the chaos of the world we live in. It has shown her light where there was darkness, helping her move through grief and live life with less pain. She is a forever student of Yoga Therapy, Ayurveda, and holistic healing. In her free time, she enjoys hiking, rock climbing, traveling, and spending time alone in nature.


Belle Knopf

My goal is to bring the joy and love of movement to others, in order to help them function through life with more mobility and ease. I have a desire to always learn and grow and have successfully completed almost 2000 hours of continuing education in fitness and yoga since my first Teacher training in 2015. I am kind, outgoing, and always ready for adventure. I have a passion for helping others and animals, and am constantly looking to grow and improve. Thank you for this opportunity to guide you through movement. I am excited to help you unlock your potential through our time together.


Azzie Crean
Hello, my name is Azzie, and I have been practicing yoga for over 10 years. I received my 200 hour certification at The River Yoga in Denver, Colorado in 2022. I specialize in teaching yin yoga, as well as the practice of Vinyasa yoga. My mission is to create a community through the shared experience of breath and movement, connecting people to the deeper aspects of themselves and the world around them. My classes are designed to help students release tension and cultivate inner awareness, while building strength, flexibility, and resilience. Whether you’re a seasoned yogi or a beginner, I invite you to join me on your mat to explore the transformative power of yoga together.



5716 Ammons St
Arvada, CO 80002
(303) 918-0974