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Instructor Trainers

The Merrithew 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.

Marina Buntovskikh
Brussels Pilates (Satellite Location for Pilates Italia)
Brussels, Belgium

IT qualifications
STOTT PILATES® Matwork and Reformer, Cadillac, Chair and Barrels; Total Barre®

Additional credentials and designations
Aerobic Instructor

Bio

Born in Russia, Marina studied German at the University for Foreign Languages in Almaty, Kazakhstan. After moving to Europe in 1997, her passion for fitness and wellness led her to become a certified Aerobic Instructor and a STOTT PILATES® Certified Instructor. She holds a certification as an Aerobic Instructor from BSA Akademie in Germany (1999-2000) and FISAF (Federation of International Sports of Aerobics and Fitness) in Paris 2001. Shortly after, she completed her first STOTT PILATES training in Toronto, Canada at our Merrithew Corporate Training Center. She received her first certification in STOTT PILATES Matwork level 1 in 2004. She then became an Instructor Trainer for Merrithew specializing in STOTT PILATES in 2010 and a proud owner of BRUSSELS PILATES a Merrithew Licensed Training Center Satellite. Marina speaks Russian, English, French, and German.

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Marina Goddu
Floating
Singapore, Singapore

IT qualifications
STOTT PILATES® Mat and Reformer

Bio

As a student, Marina competed in track and field events and earned Coaching (Track and Field) and Rehabilitation degrees. In 1995, Marina opened her first professional studio in Russia. In 2008, Marina earned her first STOTT PILATES® certification in Toronto. She moved to Singapore in 2011, where she opened Smart Fit Studio. Marina completed her training, becoming an Instructor Trainer for Merrithew in September 2016, specializing in STOTT PILATES Mat and Reformer. Like many devoted athletes, Marina's past injuries led to her focus on injury prevention and rehabilitation, and her personal experience fuels her expertise and empathy. Marina works closely with doctors, physical therapists and other medical professionals and top professional athletes to sustain high levels of performance.

Marissa McRay
Floating
Sacramento, California, USA

IT qualifications
STOTT PILATES® Matwork & Reformer; Halo® Training

Additional credentials and designations
M.A. in CCC-SLP; STOTT PILATES® ISP, Athletic Conditioning Specialist; Group Equipment Specialist; Halo® Training Qualified Instructor, Level 1; NASM CPT; NPCP (formerly PMA)

Bio

Like many, Marissa was fortunate to discover Pilates during her recovery from a back injury. A rock climber and all-around active person, she noted significant benefits to her climbing skills and other activities, including skiing, tennis, cycling, running, hiking and dance. A medical speech-language pathologist and clinical researcher, Marissa was pursuing a Ph.D. in Neuroscience when she realized that her love of Pilates, teaching and neuromotor sciences could all be synthesized in her work as a Pilates instructor. She devoted herself to the STOTT PILATES® method in 2013 and excelled at it, becoming an Instructor Trainer in 2017. She dedicates her time to advancing her knowledge of biomechanics and uses her knowledge of neuromuscular control and motor learning to create a solid understanding of anatomy, strength and movement for students. Her therapeutic background provides her with a unique ability to identify individual learning styles and translate the work accordingly in a fun way that builds confidence and independence.

Marsha Duff-Warnke
Floating IT
Salem, Oregon, USA

IT qualifications
STOTT PILATES® Matwork and Reformer, Cadillac, Chair and Barrels, ISP; Total Barre®

Additional credentials and designations
MS, ACSM, Gyrotonic and Gyrokinesis

Bio

Marsha received her certification as a STOTT PILATES® Instructor in 2001, and became an Instructor Trainer for Merrithew specializing in STOTT PILATES® in 2008. Marsha has always had a passion for body movement and dance, having spent over twenty years as a professional ballet dancer, instructor and choreographer. She holds a Masters of Science Education in Exercise Physiology from the University of Kansas, and is a certified Clinical Exercise Physiologist and Health Fitness Specialist through the American College of Sports Medicine. Marsha brings her extensive knowledge of anatomy, as well as a genuine enthusiasm for bodywork to each workout.

Marshall Eklund
Floating
San Diego, California, USA

IT qualifications
STOTT PILATES® Matwork & Reformer, Cadillac, Chair & Barrels, ISP

Additional credentials and designations
MA

Bio

Known for his clinical knowledge, endless humor, and abundant energy, Marshall earned his first fitness certification and began training clients in 1986. He holds a Masters degree with a special emphasis in Biomechanics and Athletic Training and is an Instructor Trainer for Merrithew specializing in STOTT PILATES®. Marshall presents on behalf of Merrithew and divides his time between client assessment, staff development, instructor training, and writing.

Marta Yuste Vaquerizo
Akrostudio
Toledo, Spain

IT qualifications
STOTT PILATES® Matwork & Reformer, Rehab; Halo® Training

Bio

Marta began her training with STOTT PILATES® in 2005 and became a Certified Instructor Trainer for Merrithew in 2007. She currently works teaching education at Akrostudio, a Licensed Training Center for Merrithew. She was granted Merrithew Lead Instructor Trainer status in 2018.

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Martha Kittle
Floating
Brunswick, Maine, USA

IT qualifications
STOTT PILATES® Matwork and Reformer

Additional credentials and designations
B.S., ACE, TRX, SPINNING Level 2

Bio

Martha has been teaching fitness since 1984 (over 30 yrs!). Martha began studying Pilates in 2001, earned her Full STOTT PILATES® Certification in September 2004 and soon after became certified as an Instructor Trainer for Merrithew, specializing in STOTT PILATES®, (the only Pilates instructor in Maine to earn this status!) She has trained at the Merrithew Training Center in Toronto, and at Northeast Pilates Certification Center in Massachusetts. Martha holds national certifications for both group fitness and personal trainer through American Council on Exercise (ACE), is a TRX Qualified Instructor (Oct 2010) and is also a certified STAR LEVEL 2 SPINNING® instructor. Her cycling adventures include Trek Across Maine (1997 & 1998), Dempsey Challenge 50 miles (2009 & 2010) and many of the Maine Bike Coalition sponsored rides. She has a love for learning and has taken several courses in anatomy and is continually staying updated of the latest research in the fitness industry. With a strong desire to help clients improve their fitness levels, she strives to make a healthy lifestyle enjoyable.

Mary Jo Ketterhagen-Ida
John Garey Fitness & Pilates
Long Beach, California, USA

IT qualifications
STOTT PILATES® Matwork and Reformer, Cadillac, Chair and Barrels, ISP; ZEN•GA®, Total Barre®

Additional credentials and designations
ACE, PMA, Gyrotonic Certified, Gyrokinesis Certified, Bachelors of Science / Microbiology

Bio

Mary Jo has had a long history in the fitness industry, beginning in 1993 as an Aerobics Instructor. She first received her certification as a STOTT PILATES® Certified Instructor in 2002, and quickly moved on to become an Instructor Trainer for Merrithew specializing ZEN•GA® in 2013, Total Barre® in 2013 and is a Lead IT in STOTT PILATES®. Since becoming certified, Mary Jo has taught courses throughout the Unites States, and internationally as well. In addition to her STOTT PILATES® Certification, Mary Jo is also a certified White Lotus Yoga Instructor and a Mad Dogg® Spinning Instructor. She specializes in creating workouts for all fitness levels and helping each of her clients to reach their fitness goals.

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Matilda Ljung Lundqvist
Stockholm Pilates Center
Stockholm, Sweden

IT qualifications
STOTT PILATES® Matwork & Reformer

Bio

Matilda has been working as a Pilates instructor for over 14 years. She became a fully Certified Instructor in 2004 at the Merrithew training center in Toronto, and went on to become an Instructor Trainer for Merrithew specializing in STOTT PILATES® in 2011, joining three others in Sweden. Besides her education in Pilates she is a trained classical dancer from The Royal Swedish School of Ballet and freelanced as a dancer before critically injuring her neck on stage. "The best part about my work is that I get to work with both people and training" says Matilda.

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Megumi Hayashi
Bcube Pilates & Fitness
Osaka, Japan

IT qualifications
STOTT PILATES® Matwork & Reformer

Bio

A passionate dancer who has performed various methods and genres of performing arts nationwide in Japan, Megumi began her teaching career in the sector of dance for various demographics in academies and private studios. But between 2003 and 2010 she discovered a passion for Pilates. In she earned her certification as a STOTT PILATES® Certified Instructor and began to teach at a number of fitness and dance studios. Since 2016, she has been teaching at the Merrithew Licensed Training Center B Cube in Osaka, Japan, and continues to bring her combined knowledge and experience of dance with the STOTT PILATES method to her fellow dance teachers and clients. Her skills and experience are only outweighed by her passion to teach and help others. Megumi is now a Merrithew Instructor Trainer specializing in STOTT PILATES.

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