Our Team

Karl Sterling, Creator / CEO

Karl is an NASM Master Trainer based in Syracuse, New York, and is the CEO and creator of the Parkinson’s Regeneration Training ® education program. While his extensive experience as a trainer includes working with a variety of populations, he primarily specializes in working with clients who have movement disorders such as Parkinson’s disease, MSA (Multiple System Atrophy), MS, Charcot-Marie-Tooth, Alzheimer’s and more.

Karl travels extensively and internationally as an educator in the fitness training and human movement arena. He is the Chief Operating Officer of Agile Human Performance, Inc, and CEO of PhysioChains LLC which currently offers Parkinson’s Regeneration Training ® courses online and world wide.

In addition, Karl is the founder and president of the Parkinson’s Global Project, a foundation dedicated to helping people with Parkinson’s and other movement disorders all over the world.

Dr. Stewart Gillespie

Stewart Gillespie, DC, is a Chiropractor and Osteopath specializing in Functional Medicine, which is the ability to scientifically uncover the true underlying causes to chronic disease, and correct them through nutritional and natural methods. His private practice is a virtual practice that allows him to treat clients all over the world. 

Stewart has been in practice for 12 years. He consults patients in overcoming the factors that cause chronic disease, from digestion to hormones, to regulating the immune system, and enhancing brain function.  He accepts and treats the cases that no other physician wants to touch. He also consults patients who have been frustrated with their care from top hospitals and medical doctors in DC and the surrounding area, with a whole body approach, using the best scientific testing currently available.

Dr. Gillespie along with Dr. Perry Nickelston, have conducted many seminars to the public and other health professionals on the key factors of the inflammatory cascade on chronic health conditions and obstacles to health.

Areas of practice:

  • Functional Medicine
  • Autoimmune Disease
  • Neurodegenerative conditions


British School of Osteopathy, London, England: September 1997- January 1999

New York College Of Chiropractic: January 2002-March 2005

Doctorate of Chiropractic

Functional Medicine University: September 2012 – present

Certified Functional Medicine Doctor

Alison Klaum, NASM CPT, CES

Alison is an NASM-certified personal trainer who specializes in corrective exercise and human movement. In addition to her Corrective Exercise Specialization (CES) through NASM, she has also received extensive training through the Brookbush Institute of Human Movement Science and is close to completing her Human Movement Specialization.

Alison works with older and special populations, particularly those who are recovering from injury or have neurological conditions such as Alzheimer’s and Parkinson’s. Because she also has several family members who have PD, she is particularly passionate about working with those who are impacted by the disease. Recognizing the importance of ground-based exercise and primal movements to improving human movement, Alison has also recently become a certified Animal Flow® instructor.

She is excited to bring her knowledge of this innovative, bodyweight approach—good for both the brain and the body—to PRT workshops. Combining her nearly 10 years of experience as an educator with a passion for human movement, Alison is honored to join the PRT Instructor team.

Rubén Artavia, NASM CPT, CES, FNS

Rubén is an NASM Certified Personal Trainer based in Costa Rica. He has worked in the fitness industry for 7 years now, and he specializes in elderly population training mind and body as a whole.

He studied Physical Education in Costa Rica but most of his education has been traveling around U.S, looking for helping more people achieve their personal goals moving better and feeling better.

Rubén has been assisting Karl Sterling, owner of PhysioChains Education which currently offers level 1 and 2 “Parkinson’s Regeneration Training ®️” courses worldwide.