Hi! My name is Sharon Chamberlin and I own Catalyst 4 Fitness, a woman-owned, small business specializing in helping independent gym owners and trainers scale up to build the business they have always dreamed of, and on a more individual level, helping women and men achieve their desired results through fitness, nutrition, and accountability.

I’ve successfully helped many people reach their goals – lose fat, build muscle, or maintain their weight – and be healthier overall

  • busy moms and dads juggling work and home while trying to improve their health
  • wanting to be good role models for their kids
  • desperately desiring to fit back into their favorite jeans
  • women who have never exercised before
  • women who haven’t exercised since before they had kids
  • women who have concerns about their bone health
  • women who have been diagnosed as pre-diabetic or diabetic
  • perimenopausal women
  • women in menopause
  • postmenopausal women

Exercise fads and diets are not the answer. Make realistic and sustainable changes so it becomes a lifestyle you like and want to live.

I can help you do this.

Don’t simply take my word for it. Read my client’s testimonials.

If you want to learn more about me, like why I am qualified to help you, or what I did in the corporate world before leaving it to open my studio, read on for my “official” bio.


Sharon Chamberlin is a certified personal fitness trainer through the American Council on Exercise, certified by the Fitness Consulting Group in Metabolic Training, and both a Physique and Fitness Training Specialist and a Fitness Nutrition Coach through the National Exercise & Sports Trainers Association.

She trained for two years under the watchful eye of four- time IFBB Figure Olympia Champion Nicole Wilkins.

In 2021, she was a quarterfinalist in the international Ms. Health and Fitness contest sponsored by Muscle & Fitness Hers, putting her in the top 1% of all competitors.


reebok one instructor

She is also a ReebokONE Instructor,  a panelist on the NBA/WNBA Fan Forum, and a member of the Fitness Intel Team created by Glanbia Performance Nutrition, the #1 global performance nutrition company. FIT is for fitness professionals to give feedback and recommendations on future products.

Sharon has launched her own Premium Supplement Line focusing on high absorbability rates to better help her clients achieve their goals and improve their overall health. 

To further her clients’ success, she realized there was a demand for a true meal replacement bar. She created the Catalyst Bar – the perfectly delicious, nutritious, portable, quick, and easy meal-on-the-go. 

During the pandemic, she was one of only 100 national recipients of the Pro for Pros Grant. Sponsored by Oikos Yogurt and Saquon Barkley of the New York Giants, she was recognized for her successful efforts to continue providing fitness and nutrition services to her community. 

Prior to all of this, Sharon worked in the private and public sectors, where she handled situations including anthrax scares, bomb threats, managing government facilities during 9/11, SWAT teams, lost guns, and more.

After about 20 years in that industry, she realized it was time for a change. In May 2012 she opened Catalyst 4 Fitness, a private fitness studio, and enjoys helping others improve their self-esteem and self-image, be proud of their bodies and their accomplishments, and have fun while doing it.

She has been a guest on the Fitness Blitz Podcast,


fitness blitz radio podcast


on Business Talk Radio,


business talk radio sharon chamberlin interview


on the Podcast Business News Network,



and on the Gym Lords podcast.




Sharon has authored more than thirty articles that are published on the ShapeFit website and has been a featured writer in their newsletters and on their website.


sharon chamberlin and dogs

She was interviewed for How Alcohol Affects Athletic Performance on UnderArmour’s MapMyRun website, and is a contributor to the Health and Wellness Expert Roundup: How to Get Fit.


Featured in 80+ Experts Sharing Amazing Tips On Weight Loss And Motivation, she has also been interviewed for the  Femme Fitale Fit Club blog.

Athletic Recovery, the makers of Firefly, highlighted her article on proper recovery protocol.

Health Ambition featured her article on Hormone Imbalance in a newsletter to their 40,000+ readers.

Cincinnati.com published an article describing the services she offers, including her mobile boot camp classes that come to your location.

The American Academy of Health and Fitness has published several of her articles in their e-magazine the Gamut of Life which is distributed to more than 25,000 health and fitness professionals, as well as on ConsumerHealthDigest with more than 100,000 daily viewers.

The Tommy and Waks Radio Show interviewed her as one of Cincinnati’s self-made business owners.

New York lifestyle and nutrition counselor, Andrea Ramirez, interviewed Sharon on “How to Find the Workout that Works for You.” The audio is available through her True Nourishment Inner Circle. Membership is free to everyone.


sharon chamberlin personal fitness trainer

She led workshop sessions on “Forget diets – learn some basic skills to make fitness and nutrition a lifestyle” at the Forest Hills Foundation for Education’s A Day for Today’s Woman, and has held Boot Camps benefiting Transitions Global and Louie’s Legacy.




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