MEET GRETCHEN
Gretchen Bosselmann-May
Founder & Classical Pilates Instructor in Scottsdale
I founded TruForm Pilates Scottsdale to create a Pilates studio where clients receive knowledgeable, personalized instruction rooted in the Classical Pilates method.
My goal is to help you build strength, improve how you move, and develop greater confidence in your body while learning how the complete Pilates system works together.
Nationally Certified Pilates Teacher
Power Pilates Comprehensive Certification
Advanced Classical Training & Mentorship
Founder of TruForm Pilates Scottsdale
My Journey to Classical Pilates
I came to Pilates after an injury made me aware of how limited and disconnected movement can feel when the body is not working as a whole.
I had always valued exercise, but Pilates taught me that strength alone was not enough. The body also needs control, coordination, balance, flexibility, and an understanding of how every part works together.
When I discovered Classical Pilates, I found a complete system rather than a collection of disconnected exercises. Each movement had a purpose, each exercise prepared the body for what came next, and the apparatus provided both support and challenge.
What began as part of my own recovery and personal practice gradually became a professional calling. I began teaching Mat Pilates in 2014 and expanded to the complete apparatus system in 2015.
For many years, I balanced teaching Pilates with a corporate career. That experience helped shape the way I teach today, with respect for real bodies, real schedules, and the importance of movement that supports everyday life.
Why I Choose Classical Pilates
The original system. Purposeful progression. Lasting skills.
There are many ways to teach Pilates. I chose to dedicate my practice to the Classical Pilates method because it preserves the complete system developed by Joseph Pilates.
Classical Pilates follows a purposeful order and progression. Each exercise builds the skills needed for the next, allowing strength, mobility, coordination, and control to develop together over time.
I do not want clients to simply complete a workout. I want them to understand what they are doing, build strong movement foundations, and develop skills they can carry into more advanced exercises and everyday life.
My Teaching Philosophy
Personalized instruction. Purposeful progress. Practice for life.
No two bodies move in exactly the same way. Every client brings a different history, experience, and set of goals into the studio.
My responsibility as an instructor is to observe the person in front of me, select the exercises and apparatus that best support that client, and teach the method in a way that is both challenging and appropriate.
My approach emphasizes:
✓ Precision over repetition
✓ Quality over intensity
✓ Progression over perfection
✓ Understanding rather than simply following
✓ Long-term development over quick fixes
Whether you are completely new to Pilates or have years of experience, I want you to leave each session with a better understanding of your body and greater confidence in how you move.
“Gretchen is knowledgeable, attentive, and genuinely cares about each client. She provides individualized guidance based on how each person moves, making every session effective, appropriate, and personal. Her bright, intimate studio creates a welcoming environment for learning and progress.”
A. Black
Comprehensively Trained. Continually Learning.
Power Pilates Comprehensive Certification
Completed in 2016, with training across Mat and complete Classical Pilates apparatus.
Nationally Certified Pilates Teacher
Earned the NCPT certification in 2018.
Lolita San Miguel Pilates Master & Mentorship Program
Second Generation Pilates Instructor
Completed in 2020, continuing my study of the Classical Pilates method and its teaching lineage.
Kathi Ross-Nash Professional Pilates Advanced Teacher Training
Completed Part 1 in 2022 and Part 2 in 2026.
Continuing Education
I continue to study with respected Classical Pilates educators including Kathi Ross-Nash, Michael Fritzke, and Ton Voogt.
Thoughtful Guidance Designed Around You.
Careful Observation
I watch how you move and use what I see to determine where you need support, where you are ready for greater challenge, and which skills should come next.
Clear Instruction
I explain the purpose of the exercise, help you understand what you are working toward, and provide corrections that are specific and useful.
Individual Progression
Your sessions develop as your skills develop. We do not rush into advanced exercises before the necessary foundations are in place.
The Complete Pilates System
Depending on your needs, your session may include the Reformer, Cadillac, Chairs, Barrels, Mat, and additional specialized Classical apparatus.
A Supportive Challenge
Pilates should challenge you, but it should also help you feel capable. My goal is to create an environment where you feel supported, focused, and encouraged to progress.
Work With Me at TruForm Pilates Scottsdale
Private Pilates
Private Pilates provides one-on-one instruction tailored to your body, goals, and movement needs.
Small Group Pilates Classes
Classes are limited to four and use the complete Classical system, allowing clients to progress while continuing to receive personalized instruction.
Workshops & Instructor Education
I am committed to continued learning for both myself and the wider Pilates community. TruForm Pilates Scottsdale regularly hosts educational workshops designed to deepen instructors’ understanding of the Classical method.
Frequently Asked Questions
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I began teaching Mat Pilates in 2014 and teaching on the full apparatus in 2015.
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Yes. I enjoy helping new clients learn the foundations of Pilates, become comfortable with the apparatus and build confidence from their first session.
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Yes. Private Pilates provides an opportunity to refine technique, explore the complete Classical system and continue developing more advanced movement skills.
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My teaching is precise, personalized, and progressive. I focus on helping clients understand the exercises, improve movement quality, and develop the skills needed to advance through the system.
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Yes. When viewing Private Pilates availability, select Gretchen as your preferred instructor and choose an available date and time.
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Yes. I personalize each session around your current abilities, movement history and goals. When appropriate, I may recommend that you receive clearance or guidance from your healthcare provider before beginning. Pilates instruction is not a substitute for medical treatment, but it can help you build strength, control and confidence as you return to movement.
Begin Your Pilates Practice with Gretchen
Every new client begins with an Intro Pilates Session. This gives me time to learn about your goals, introduce you to the Classical Pilates system, and recommend the training path that best supports you.
Private Pilates is available at TruForm Pilates in North Scottsdale’s McDowell Mountain Ranch neighborhood.
