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Instructor Trainer bios

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.

Yoko Yasui

Yoko Yasui

Body Mode
Tokyo, Japan

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

Additional credentials and designations


Yoko graduated from Yokohama National University with a degree in Health & Physical Education and has been a Merrithew Instructor Trainer specializing in STOTT PILATES® since 2007. She currently teaches courses and workshops at the Licensed Training Center in Tokyo, Body Mode. Yoko has a passion for aerobics and has over 20 years experience teaching instructor courses, has competed in national and international competitions, and currently acts as a judge at such events in Japan. Yoko particularly enjoys working with the aging population, integrating post-rehabilitation techniques and coaching and conditioning athletes to help them achieve success.

See where I teach