More Than Just Personal Training – Welcome to The Bodycentre
At The Bodycentre, personal training is just one part of the bigger picture. True transformation goes beyond just lifting weights or breaking a sweat. That’s why we take a holistic, science-based approach to your health and fitness journey.
Anyone can hold a certification—but not everyone knows how to build a program specifically for you. That’s where we’re different.
What Sets Us Apart
We focus on total-body wellness, backed by experience, education, and a deep understanding of human physiology. Our comprehensive approach includes:
✅ Customized Training Programs
Designed around your goals, body, and current fitness level—never one-size-fits-all.
✅ Injury Prevention & Proper Form
We emphasize functional training, physical therapy principles, and proper mechanics to keep you safe and strong.
✅ Science-Based Nutritional Counseling
Grounded in real, proven science—no fads, just what works for your body and goals.
✅ Physiology-Driven Programming
We apply true knowledge of human physiology to real-world fitness and wellness.
A Private Gym, Real Results
Our private personal training facility is designed for those serious about results. Whether you're looking to:
Lose weight
Build lean muscle
Recover from injury
Compete at the highest level
…we’re here to get you there—with a plan that’s safe, effective, and sustainable.
Meet Your Expert Team
Led by Kelley Gast and Mark Ainsworth, The Bodycentre brings over 40 years of combined real-world experience to your fitness journey.
Proudly Serving Orange County Since 1994
Located in Costa Mesa, we proudly serve Newport Beach, Irvine, and the greater Orange County area. Whether you're just getting started or looking to level up, The Bodycentre is your partner in becoming your strongest, healthiest self.
👉 Learn more about Kelley and Mark on our “Meet Our Trainers” page.
NUTRITIONAL COUNSELING / MEAL PLANS
NUTRITIONAL COUNSELING / MEAL PLANS
NOTHING COOKIE-CUTTER HERE!
At The Bodycentre, we create customized 12- to 16-week programs designed specifically for you and your goals. We've worked with hundreds—if not thousands—of clients, and one thing is clear: the biggest barrier to success is a lack of knowledge. And as we always say: Knowledge is POWER!
Through years of experience, we’ve found that those who follow the program succeed. With the right knowledge, guidance, and support, you can be our next success story.
It All Starts With YOU
We begin by truly getting to know who you are and what you want to achieve. We eliminate the guesswork by focusing on human physiology—specifically, yours. Everything starts with the basic science of your body.
We perform a complete body composition analysis using one of the industry’s leading technologies: the InBody 570. This advanced system doesn’t just tell us your weight—it gives us a deep dive into your body’s key components:
Total Weight
Intracellular & Extracellular Water
Body Fat Mass (BFM)
Dry Lean Mass
Body Mass Index (BMI)
Visceral Fat
Basal Metabolic Rate (BMR)
And more...
This gives us a clear, detailed picture of exactly where you're at—physiologically speaking.
Nutrition: The Foundation
Next, we evaluate your current nutritional habits—both the strengths and the areas for improvement. Once we know where you are and how you got there, we can chart the path to where you want to go.
Most programs miss this step. They guess how your body might respond, and that’s where they go wrong. We eliminate that guesswork right from the start.
Your Personalized Baseline
Every program begins with a 10 to 14-day baseline phase. This gives us real data on how your body responds to specific inputs. With that information, we can build a customized 12-week program that we know will work—for you.
