HELLO
My Name Is
Marielle
Marielle’s mission is to guide women to reach their peak potential physically and mentally. She has trained and coached hundreds of women across the United States, from San Diego CA, Tampa FL, Pennsylvania, Maryland, Jersey, and Delaware. From celebrities, to marines, athletes, post-partum mothers, young athletes, middle aged men and women, seniors, and people just starting their fitness journeys. She specializes in women's body composition, athletic strength and conditioning, strength training, injury prevention, weight loss, post partum, and mindset coaching. Marielle was a competitive volleyball player for 12+ years. Her degree is in psychology, which is embedded into her coaching and training. Her coaching style has a balance of pushing people past their limits while balancing a motivational and high energy style. Marielle’s mission is to change as many lives as possible through fitness, challenging women and young girls to become the highest version of themselves.



Katie Thurston
(Seen on The Bachelorette)
"Beyond just teaching me proper form and technique,
Marielle helped me develop a
newfound sense of confidence in my abilities. Her patience and belief in my potential gave me the courage to step out of my comfort zone and embrace the challenges of weightlifting."

Cayla
"One of the biggest reason why Marielle succeeds in her career is how big her heart is. What I truly appreciated and am forever grateful for, is that she always knew how to read the room and start with attainable steps that never felt too overwhelming, while also helping me feel super accomplished when walking out the door. One of the biggest reason why Marielle succeeds in her career is how big her heart is."

Yesenia
"This is the most I've weighed in my entire life, and it's good to know that it's muscle!!! If you are on the fence, please give it a chance. If you're someone like me who struggles with where to start and often
feel overwhelmed by the thought of it, please try it out.
Marielle has played a huge role in improving not only my workout life, but my mental health and emotional being."

Vanessa
"I'm so happy I found Marielle on INSTAGRAM and went with
my gut feeling. I knew instantly she was going to guide me to big physical changes. I did not expect for her to help me mentally grow as well. Marielle is one of a kind. Not everyone focuses on the mental aspect when attempting to achieve their physical/nutrition goals, she prioritizes that which makes her stand out much more."
What does Motion Mentality offer?
Nutrition Coaching
- Personalized meal plans based on nutritional needs, dietary preferences, and fitness goals.
- Guidance for sustainable results.
Monthly Program Subscription
Month to month custom programs delivered through our app
Personal Training (In Person)
Only in the state of Pennsylvania. Located at Halo Academy in Berwyn or in home
Personal Development Coaching
- Techniques to enhance mental focus, resilience, and motivation throughout daily life
- Strategies for building and sustaining healthy habits, overcoming obstacles, and cultivating a positive mindset.
Business Strategy
We cook up stunning landing pages and websites, designed to drive more traffic to your business.
Content, Marketing, SEO
Amplify your online presence with automated drip campaigns, content creation, and increased traffic and eyes.

Our why
At Motion Mentality, the mission is to empower high-performing women—to build unshakable strength from the inside out. We combine movement, mindset, and sustainable habits to help clients break mental and physical plateaus. Through expert coaching, real connection, and purpose-driven fitness, we create a path to lasting confidence and health—so every step forward becomes a statement of self-love.