Merrithew Health & Fitness


Instructor Trainers

The STOTT PILATES® Faculty, or members of our esteemed team of Instructor Trainers, is made up of highly qualified and internationally sought-after educators who are known for their dedication, professionalism and attention to detail. All of our faculty members hold full certification in the STOTT PILATES method and have achieved additional designations to complement their training. A diverse group, they come from various backgrounds including physical therapy, exercise science, athletic therapy, dance and group and personal fitness training to name a few. Every member of the team strives to uphold the highest standards of training that have been developed worldwide.

Jenn McNellis

C2 Pilates
Avon, Connecticut USA

Jenn’s career in the fitness industry began as a group exercise instructor and personal trainer.  She holds a Master of Science Degree in Exercise Physiology, and is a Certified Strength & Conditioning Specialist with the NSCA.  In 2007, Jenn became an Instructor Trainer for MERRITHEW™, specializing in STOTT PILATES®.  She is also an Adjunct Professor in the Exercise Science Department at Southern Connecticut State University and teaches Pilates at The Edge Fitness Clubs in Fairfield County, Connecticut.  

Matwork, Reformer, Cadillac, Chair, Barrels, ISP

Jenna Hansen

Floating IT
Salt Lake City, Utah USA

Jenna has a passion for life, the outdoors, education and people. She is an Instructor Trainer for MERRITHEW™ specializing in STOTT PILATES® Mat, Reformer, Cadillac, Chair and Barrels; Total Barre™, ZENGA™, and CORE™ Athletic Conditioning & Performance Training™. Along with teaching Pilates Jenna has also taught snowboarding, skiing, group fitness, weight training, and dance. She has taught dance and Pilates in New Zealand and was a Rafting and Hiking guide in Alaska. She has seen Pilates improve her time, endurance, technique and reduce injury on the many activities she does in her spare time from surfing to completing an IRONMAN. Jenna has competed and placed in marathons, triathlons, snowboarding, and dance competitions. Jenna has seen Pilates create miracles in the lives of her clients as well as in her own. Jenna’s philosophy is ‘If you can believe it, you can achieve it, so go out and do it’. Jenna is certified by the AFAA, the NSCA and Les Mills. She earned a Bachelor of Fine Arts in Dance, a Masters in Education and a Secondary teaching license. 

Matwork, Reformer, Cadillac, Chair, Barrels, ZEN∙GA™, CORE™, Total Barre™

Jennifer Montie

Equilibrium Mind-Body Fitness
Bloomfield Hills, Michigan United States

Jenn has an extensive background in Ballet and performed with Mid-States Regional Ballet Company, Ballet Americana for many years.  Currently she instructs Ballet and Pilates classes for Ballet Americana and helps run company rehearsals.  She discovered Pilates through her dance training and loved the conditioning, strength, and balance it provided. A fully certified STOTT PILATES® instructor, Jenn became an Instructor Trainer for MERRITHEW™ specializing in STOTT PILATES in 2014. Jenn also holds certifications from ACE, Xtend Barre and TRX®. Jenn has been working at Equilibrium since 2007, and enjoys giving a very detail-oriented workout to clients of all ages and fitness levels.

Matwork, Reformer

Jennifer Vaughn

Marshall Eklund Fitness & Pilates
San Diego, California USA
Jennifer Vaughn became a STOTT PILATES Instructor in 2002 and an Instructor Trainer in 2005, specializing in STOTT PILATES Mat and Reformer. She holds a Bachelor of Science Degree in Commerce and Business Administration from The University of Alabama and is an ACE® Certified Group Fitness Instructor. Jenn has been teaching STOTT PILATES for 12 years and combines her passion and enthusiasm for the method and its many benefits with a detailed approach to instruction on all levels from training post rehab and therapeutic clients to professional athletes and dancers as well as students. She possesses an in-depth understanding of safe practice and works to develop a Pilates program uniquely tailored to each of her client’s life and fitness goals. In addition, she is devoted to her PILATES LOVE initiative where she provides free Pilates sessions to fellow Military Spouses and New Mommies in an effort to promote health, fitness and well-being within her community. She is an avid reader, skier and runner and enjoys the beach with her family when she is not in the studio.
Mat, Reformer

Jerome Acosta

Marshall Eklund Pilates & Fitness Studio, San Diego California

Jerome earned his full STOTT PILATES® Instructor certification in 2007, and became an Instructor Trainer for MERRITHEW™ specializing in STOTT PILATES in 2009. He is a graduate of Texas Tech University with a Bachelor of Business Administration. After graduation, Jerome moved to San Diego to begin a career in fitness facilities management.  Four years later he was inspired to open his own personal training business and continues learning new ways to facilitate Mindful Movement.  Jerome is proud to be part of the Marshall Eklund Pilates & Fitness team.

Matwork, Reformer