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Meet Our Team

All of Pilates in Holland’s instructors are recognized as Comprehensive Teachers through Balanced Body University and Master Trainer, Ahmé Bovée, and are Nationally Certified Pilates Teachers (NCPT). They are skilled at tailoring workouts to fit the body in front of them, not the other way around. When we say Every Body Belongs, we mean that every workout is suited to your individual needs.

Offering group classes and Private sessions in an inviting, educational, and motivating environment. Pilates in Holland inspires wellness. Each dynamic session in the beautiful studio will feel new and unique while challenging you on the state-of-the-art equipment.

Mandy Hilldore

Owner, NCPT

I was drawn to Pilates over 20 years ago. Many of my massage clients repeatedly spoke of Pilates with great enthusiasm. After becoming a mother, I needed to reconnect with my core. Having had an athletic background and working as a massage therapist for 8 years, Pilates instantly felt like a natural fit when I took my first Reformer class. My teacher quickly suggested I consider instructor training. After certifying in 2003 while living in Santa Barbara, CA. I returned home to West Michigan and began teaching Pilates at Avalon School of the Arts in 2005. Continuing my education was a concern, but I received a gift when Master Trainer Ahmé Bovée relocated from Canada to open a studio in East Grand Rapids. I am recognized as a Comprehensive Teacher through Balanced Body University and Master Trainer Ahmé Bovée and am NCTP nationally certified. It was a wonderful compliment to be a part of her teaching staff from 2011 to 2015 and I have continued my learning in Neuro and Primal movement under Trent McEntire, Louise Johns, & Missy Bunch.

I opened Pilates in Holland in 2014. It is a wellness space where we learn to move better physically and mentally in everyday life, enhance performance, and laugh at what seems impossible. It is a privilege to help others grow their body-mind connection by getting curious and sharing how the human mind is wired. I have had the pleasure of working with some clients since 2006, wonderful people inside and out. PIH is truly all ages and genders coming together to grow and it’s an amazing thing to be a part of.

Debra Lappenga

Instructor, NCPT

Say ‘Yes!’ to new experiences! After nearly 10 years of being a student of Pilates, I jumped into my Pilates teacher training, and I’m so excited to share this life-changing practice with you! I had been a stay-at-home mom for 15 years, and I knew that I was ready for a new challenge. Before having children, I was a nurse. Educating others on healthy movement and lifestyle is a natural fit for me and my whole family is cheering me on in this new venture.

In 2009, I attended my first Pilates class with Mandy, and I knew at that very first class that Pilates would be a part of my life from then on. I felt stronger, more flexible, and more connected to my body right away, which over time has led to increased self-confidence. Mandy is so warm and welcoming and exceptionally good at fostering community, and as an instructor, it is my goal to do likewise for you. I am recognized as a Comprehensive Teacher through Balanced Body University and Master Trainer Ahmé Bovée and am a Nationally Certified Pilates Teacher. I am also a licensed Buff Bones instructor.

I have experience as a student with mat class, private sessions, group reformer, and Fierce Flow, all through Pilates in Holland. I have become a passionate student of these forms of movement and I feel it gives me a unique perspective on all we offer. When it comes to moving our bodies, it should be something we enjoy and feel good about because it means we’ll keep coming back for more. The positive effects of Pilates in my life extend far beyond the studio and it helps me realize what my body is capable of. Saying ‘YES! to the challenge of becoming nationally certified and teaching Pilates has truly been a gift and I hope you will say your own ‘yes!’ and come join me for class. I am excited to share my passion, experience, and knowledge with you.

Jayne Gort

Instructor, NCPT

What am I going to be when I grow up? A Pilates instructor! I love to teach, and I love exploring the anatomy of movement and its effects on how I feel as I do the things I do every day. Pilates has so helped the various aches and pains resulting from my desk job working as a Network Engineer for AT&T for 36 years, a broken knee and subsequent knee replacement, arthritis and lots of flute playing, so I know that it will always be a part of my life. I also hate to exercise, but love movement and recognize now how important movement is to living well as you age. So when I approached Mandy – “I have been thinking about teaching Pilates,” she was excited and I knew this would be a good fit.

I love the details, the nitty-gritty, of working with anatomy and technique. As a flute player and teacher, I can hear in the sound and tone of someone’s playing when small anatomy changes are made and how it helps my students achieve a better result in their playing. I love how this applies to being a Pilates student, I can see how strengthening or stretching certain muscle groups can alleviate or mitigate long-term pain and bring excellent results. This attention to detail is something I pride myself on and that I work hard to bring to my Pilates Reformer classes and private sessions.

I am recognized as a Comprehensive Teacher through Balanced Body University and Master Trainer Ahmé Bovée and NCTP nationally certified. I am also a certified Buff Bones instructor, which focuses on those with osteoporosis and osteopenia. In addition to my work at the studio, I play the flute and am on the board and staff with the Holland Symphony, I teach flute privately and help mentor young flute players in several of the local school systems. My husband and I enjoy spending time with our grandchildren and watching them explore and excel in various sports

Teresa Bellingar

Instructor, PhD, CPE, NCPT

Health and fitness have been an important part of my life. I've always enjoyed doing a variety of activities: walking, elliptical training, hiking, belly dancing, and hula hooping to name a few. I started Pilates in 2014 to increase my core strength after an incident that left me with some dislocated ribs. Amazingly, Pilates also helped me regain strength from previous injuries that had resulted in various surgeries. This inspired me to build on my knowledge of Pilates to improve my own practice. But I also wanted to help others, so I started training to become a teacher. I am recognized as a Comprehensive Teacher through Balanced Body University and Master Trainer Ahmé Bovée. and am a Nationally Certified Pilates Teacher.

I also work full-time as a certified professional ergonomist. The knowledge of anatomy, biomechanics, and physiology I have gained through my education in this field allows me to bring this expertise to my teaching as well.

Terree Brncick


I’ve always enjoyed the feeling of movement, whether it be with Pilates, dancing, or taking a walk. I think it’s the fact that it allows you to focus and be present in the moment as well as feel a sense of accomplishment afterward. As a nurse, I understand the importance of preventative care and Pilates is all about doing just that. By keeping our bodies active and strong, we can enjoy the things we love doing for longer.

I first discovered Pilates at Avalon School of the Arts, where my then 3-year-old daughter was taking dance classes. Mandy was offering a mat class two evenings a week and I thought, why not give this a try? This would be something for myself. I was hooked after the first class. That was 2008 and, not only have I grown in my love and understanding of Pilates, but I have had the privilege of doing this alongside an incredible teacher and friend.

No matter where I go, my journey keeps bringing me back to Pilates. After much searching and exploring it has been right in front of me the whole time. I am recognized as a Comprehensive Teacher through Balanced Body University and Master Trainer Ahmé Bovée and am a Nationally Certified Pilates Teacher.

Rebecca Pfeiffer Wierks

Sound Therapist, Nurse Practitioner, MSN, CPNP

I discovered the power of sound baths organically, as I see in my work with patients and within myself the importance of the mind-body connection. I am a Licensed Pediatric Nurse Practitioner and have practiced in hospitals including Johns Hopkins Hospital and Holland Hospital since 2005. I have been teaching music privately and in public schools since 2017. As a pianist, I'm passionate about music and the power of sound to assist in healing, wholeness, connection, expression, and physical health. Physical health has always been important to me; my interests include wilderness activities such as rock climbing, backpacking, biking, and playing sports with my children. My medical education and experience at Johns Hopkins University and Hospital combined with my music degree from Miami University have equipped me well to deliver sound therapy, and have contributed to my passion for this unique and powerful healing modality. Find me at

Renee Krueger

Creative Lead; Studio Coordinator

I have been a student of Pilates with Mandy since 2005 and have been hooked ever since. It has been an amazing journey to be a student of, and then friends with, Mandy as she opened this studio, increased her class offerings, took on new teachers, and completed her certification. It is inspiring, to say the least.

I have my Master of Arts in Education and taught elementary and middle school for many years. I was a project manager at a graphics design firm in San Francisco until we moved to Holland on July 4, 2001, for my husband's job at Hope College. I was able to stay home with my two kids (born in 2002 and 2004) until they were both in elementary school and then started working in the office at Fellowship Reformed Church. I served as their Director of Communications for 4 years until leaving to spend 5 months in Europe during my husband's sabbatical in the fall of 2019.

When we returned from Europe, Mandy approached me about being the Creative Lead for Pilates in Holland. I couldn't have been more excited! I love the community of teachers and learners at PIH and the way it always keeps me challenged and motivated. I learn so much about my own body and how the brain and body come into balance through Pilates. I am thrilled to share everything PIH has to offer with the world.

“I first heard about Pilates watching the golf station 8 or more years ago. Sounded logical to improve core for better fitness and improve my golf game as well as my tennis matches. Turned out to be better than I could have envisioned. I am now 60 years young, still doing Pilates 2 times a week for all these years, and basically injury free when golfing, playing tennis, and biking. Thank you Mandy!!”

Steve Borgman

Together We Grow

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