Instructor Trainer bios

Kelsey Mercer brings over 25 years of experience in the fitness and movement education industry, with more than 10,000 hours of hands-on training, teaching, and program development. She began her STOTT PILATES^® journey in 2003 and became an Instructor Trainer in 2023.

Grounded in a strong academic foundation and extensive real-world experience, Kelsey specializes in evaluation and programming for pain management, injury recovery, and optimal performance. Her teaching is distinguished by a clear, anatomy-driven approach that empowers students and clients to understand how the body functions, considering individual fitness levels, injuries, age, and lifestyle.

Kelsey brings a variety of STOTT PILATES specialist designations as well as other trainings, certifications and experience into her teaching. Kelsey is also currently training as a craniosacral fascial therapist and enjoys bringing the variety of education and experience of working with thousands of bodies to the educational platform.

Khing is a native Thai who has been living in Indonesia since the mid-1990s. With a background in the College of Fine Arts in Bangkok, she started a career in the hotel industry. While in Indonesia, she discovered her passion for Pilates and earned her STOTT PILATES^® Instructor certification in 2006. Two years later, she became an Instructor Trainer for STOTT PILATES^® while also being involved with the Merrithew^® Licensed Training Center in Jakarta.

Khing is deeply passionate about teaching clients at all levels to improve their health and well-being. She enjoys helping students gain a better understanding of Pilates and continuously seeks new knowledge to enhance her education.

Currently, Khing is running her own studio in Jakarta and also teaches courses to students from various nationalities across Asian countries.

Kim first received her certification as an Instructor Trainer for Merrithew^® specializing in STOTT PILATES^® Rehab in 2007 and is now a Lead Instructor Trainer specializing in Injuries & Special Populations and Rehabilitation. An American Physical Therapy Association Orthopedic Certified Specialist, Kim has Masters Degrees in Manual/Orthopedic Physical Therapy and Sports Physical Therapy, as well as a PhD in Instructional Technology. Kim is also an Associate Professor at Wayne State University's Department of Physical Therapy, an international presenter and has been published on Physical Therapy topics. With extensive experience in applying the STOTT PILATES principles to clients with injuries and impairments, Kim uses the method with clients at Equilibrium as well as providing evaluation and consultation for acute performing arts and sports injuries.

Kim earned a Bachelor of Science in Kinesiology, performed and trained as a dancer. Her background blends movement expertise, business experience, and a strong passion for helping people feel and perform at their best.

As the company expanded beyond Head Office during her training, Kim was invited to become both an LTC and an IT. Already inspired by the STOTT PILATES^® method, she saw an exciting opportunity to help grow the community in Eastern Canada. With an established day spa and multiple fitness programs, she had the space and vision to create the first fully equipped Pilates studio in Atlantic Canada.

After 28 years with Merrithew, she remains deeply connected to its community of instructors and studio owners, whose dedication continually motivates her. As she moves into the next phase of her career, she aims to give back by supporting both emerging and established professionals with the knowledge and perspective gained over decades in mindful movement education.

Her current areas of interest include breathwork and mindfulness in motion, a rapidly growing field in which she believes Merrithew is uniquely positioned to lead.

Kim is a STOTT PILATES^® Instructor Trainer and a Post Rehabilitation Specialist. To her young daughter, Kim helps people move better. She is honored to work with people recovering from injuries or post-operative patients and those with postural challenges such as Scoliosis. Her extensive training includes all Pilates apparatus, STOTT PILATES^® Injuries and Special Populations (ISP), therapeutic Pilates, Merrithew^® Fascial Movement Foundation Course, Anatomy Training courses, ZEN•GA^®, and other movement modalities. In addition to STOTT PILATES^®, Kim is a Pink Ribbon Program Certified Instructor, TRX Suspension Training and Rip Training Instructor, and a Certified Personal Trainer through the American College of Sports Medicine (ACSM). Prior to her Pilates journey, she earned an MBA and BGS from the University of Michigan (U-M) and worked for advertising agencies. When not teaching clients, courses, or taking continuing education classes, Kim enjoys cycling, racing sailboats, cheering U-M football, and raising her young daughter and Labrador retriever with her husband.