“The movement that changed my life,
became my life”

Celebrity trainer leading pioneer, and trusted innovator in the fitness industry

Originally from Alberta Canada, Marnie grew up immersed in music, theatre and dance. After graduating from The Canadian College of Performing Arts, she moved to Los Angeles where she immediately fell in love with both the city and barre: a workout that combined the kind of strength and flexibility training based on many of the same disciplines she learned as a dancer. She knew right away that she had found her new home.
Over the last 17 years Marnie had devoted her life to studying and sharing her love for movement. She has trained thousands of celebrities, athletes and fitness enthusiasts alike, while continuing to explore and refine her signature method. In 2014 she officially launched her own unique barre fitness program and opened a flagship studio in Los Angeles. Her coveted classes were always sold out and waitlist-only, as loyal devotees would commute from around the city and travel across the country to Sculpt, Sweat, Stretch & Connect. Since shifting exclusively online in April 2020, she has been thrilled to be able to expand her ability to connect with a growing global community from the comfort of their homes. Marnie is currently living out her dream as the CEO and Founder of M/BODY and couldn't be more grateful for every single person who is a part of this journey.

Marnie's Method

This woman is my long time teacher and dear important friend. She has helped me. Healed me. Encouraged me to keep going when I felt like being strong was an insurmountable task. We have known each other for about 15 years and when I told her I wanted to transform my body for #SANTACLARITADIET she helped me. Every spring, when I would start training to become #SHEILAHAMMOND Marnie was the one who got me there. I lost 20 pounds and trained like a mother. She also is the most amazing person. She is poetry in a human being. The best heart. Her priorities are in the right place. She is humorous and so so so knowledgeable about our bodies. I love her. Inside and out. Her classes are always booked up and we all love to run to her for her spirit and leadership for all things healthy. We hope the people in the wellness world are actually healthy in their hearts and minds. It’s not all about being terminators! It’s about how to find yourself. How to be your best self. But we need guidance and we hope our teachers are smart and wise and sane! Marnie is one of the greats. Period. And if your looking for a life change or to find your consistent tribe, she is where I found mine.”

Drew Barrymore

Jennifer Love Hewitt

Actor
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“Working with Marnie is like being injected with sunshine! Her deep and fun knowledge of the human body makes you feel safe. Her joy of music, movement and creating long lasting change in the body is inspiring. And her encouragement to find what works for your specific body makes you feel like positive changes are actually achievable! I loved every workout and look forward to more!“
Katie Sturino

Entrepreneur/Body acceptance advocate
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“Your workout changed me. I love working out with you. You made me feel so good like in my soul and in my body.”
Meagan Holder

Actor
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“It is hard to put how grateful I am for M/BODY and Marnie into words. I came to the studio looking for a barre workout but have since acquired so much more. You will never leave a class feeling anything less than inspired. Marnie’s focus on personal growth on the inside and outside makes her stand out in a world of so many fitness instructors. Every class pushes you and leaves you so much stronger then when you started. The sense of community is so rare and is what I cherish the most- whether working out in solo virtually or in class, you will never feel alone!”
Robin Wright

Actor/Entrepreneur
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“Staying fit at home w/ @marniealton M/BODY.”
Fernanda Urrejola

Actor
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“For me these classes are much more than to just to get in shape, Marnie inspires me. Her energy is always encouraging and motivates me to give the best of me. And I love that with small modifications in her classes, I feel that I never stop challenging myself. On the other hand, I love that my muscles are toned but stylized and without losing elasticity.”
Ali Landry

Actor/Host
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“It’s an amazing workout. I just get something different there. I feel like it’s good for my soul and I need it in my life. In your class you transfer your energy to everyone there. When you walk out you’re not quite sure what just happened.”
Annabeth Gish

Actor
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“I’ve known Marnie for over a decade. She has been a consistent light in my life, first as a beloved teacher and then as a true friend. Always effervescent and inspirational, Marn has a gift—leading people into their bodies, connectively and intuitively, without judgement and only positivity and kindness. She’s gentle but fierce, with an unassuming grit. Follow her. She’ll root you.”
Natasha Martinez

TV Host + Digital Personality
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“Every time I finish an m/body class I feel accomplished and rejuvenated. Marnie inspires me to complete anything in my daily life.”
Olivia Jordan

Miss USA
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“I have always aspired to be a dancer, but never quite had the talent- the M/BODY program feels like a dance class that I can actually keep up with and then as an added bonus- it’s an insanely good workout. But it Marnie’s energy that keeps me coming back to these classes. She has a magical ability to make me feel happier even through my computer screen.”