Lawrence Castanon lightening bolt

Verified 14 Reviews
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About Lawrence

Lawrence Castanon, MAI, CPT has been training clients for over 30 years.

He holds a degree in Biology from the State University of New York, is a certified personal fitness trainer with the National Academy of Sports Medicine, and is also a Certified Physical Therapist Technician. He is also CPR/AED and First Aid Certified, and is fully insured.

Additionally, he is a a SafeSport certified coach, and a certified USA Wrestling coach. He also holds black belts or instructorships in Karate, Brazilian Jiu-jitsu and Krav Maga self-defense.

Lawrence owned and operated full time fitness and martial arts studios in New York, and Georgia for over 25 years. He now focuses on private and small group training, teaching workshops, and seminars (both in-person and online), and writing books and articles on fitness and self defense.

His decades of experience includes training athletes, regular Joe's, moms, dads, and kids in a safe and positive environment.

He is also the author of the Amazon best-selling book, "The Short Fight", which has been featured on NBC, CBS, FOX, and USA Today. His book is a comprehensive physical training and self-defense manual.

He offers one-on-one and small group training, in-person and online.

My favorite client story

I trained a lonely, obese, depressed man lose over 100 lbs. He became a fitness instructor, then met and married the girl of his dreams.

My favorite exercise

I don't have a favorite exercise, but I do have a favorite method of training, and that is: Functional training exercises. Folks can do so much when they have gained functional strength and coordination.

My favorite quote

"Discipline Equals Freedom", from Jocko Willink. We truly have more freedom when we discipline ourselves. It's how I try to live.

My training philosophy

I believe folks can achieve a high level of health, fitness, and longevity without having to do extreme exercises that will injure them.

My training experience

I started my own journey of fitness and martial arts training in 1977 and have been training folks since 1989. I love it!

Areas of Expertise

  • Core and Balance
  • Flexibility and Mobility
  • Functional Training
  • Sports Performance Training
  • Kickboxing
  • Injury Prevention
  • Corrective Exercise

NCCA Accredited Certifications

NASM Certified Personal Trainer

Additional Certifications

MMA Conditioning Coach, Karate Black Belt 5th Degree, Certified Physical Therapy Technician, CPR/AED/First Aid, Sports Nutrition


Bachelors Degree in Biology, Certified Physical Therapy Aide

Who I Especially Like Working With

Beginners, Disabled, Overweight/ Obese, Post-rehab, Seniors, Student-athletes

Medical Conditions Experience

Addiction, ADHD, Anxiety, Arthritis, Asperger's Syndrome, Asthma, Autism, Back Pain/Issues, Bone/Joint Injury, Chronic Pain, Depression, Hip Pain/Issues, Lower Body Pain/Issues, Neck Pain, Neuropathy, Sciatica, Shoulder Issues, Stress

Additional Languages Spoken


Peters Township

Cumming, GA 30041

No Gym Membership Needed!

So glad I found Larry! He has helped me reach my goals and then some. Wonderful trainer! Thank you Larry!


Larry is a great trainer since I started training with him I’ve lost 20 Lbs and am stronger than I was in college


I have been training with Larry for over 5 years and I am very happy with him. I’m a senior citizen and had a terrible injury. He has worked with me to bring back my strength and I’m moving around so much better with less pain. I will continue to use him.

Anna P.

I’ve been training with Larry for a couple of years now I originally started so I could get in shape but then got into the self defense. He is very knowledgeable and teaches in a safe manner.


After COVID hit, I stopped training. Very glad I found Larry’s online program to keep practicing my skills He’s a great coach


I started training with coach Larry last year to get in better shape for football and it worked. My football coach saw it and gave me more playing time. He told me to sign up with Larry again for this preseason which I did.


I've been training with Larry for over 5 years now and my weekly workouts with him are often the best part of my week. He is super thorough and organized around what your workout goals are and meticulously designs plans around them. He has helped me make conscious decisions and choices in everyday life that contribute to my health holistically rather than insisting on spending 12 hours a week in the gym. His focus on safety and sustainability have kept me fit even while dealing with injuries without sacrificing previous gains. Above all, he has helped me learn the limits of my body and how far I can push myself (hint: much further than I thought). If you're looking for a trainer who can help you stick to your long term health and fitness goals in a safe, sustainable, and non-judgmental environment, Larry is the man for you!

Ani G.

Shihan Larry is a great maestro he teached my kids the self defense and they are tough now


Larry is a very thorough and thoughtful trainer. He helped me train for a 5K run after not doing any exercise before. Now he’s helping me train for a 10K.


Lawrence is a very good trainer who is thorough and efficient. As a doctor, my schedule is very hectic, but Lawrence has always manages to make time to train me via his virtual training program. Highly recommend.


Lawrence is an awesome trainer. I first learned about him from his book on Amazon then checked out his website and saw. I could train with him so I signed up. He’s really nice and very knowledgeable. I do fitness workouts with him and just started self defense too.


Lawrence is a professional trainer who knows his stuff. I started with him about a year ago due to a lot of stiffness and pain from working heavy construction and now getting older. I was surprised at how much he knew about it. Since training with him I no longer have the pain and stiffness and I actually got stronger. If you’re looking for a knowledgeable trainer, he’s the guy.


Larry got me in great shape for my wedding. I lost 20 pounds in 6 weeks and look amazing! He’s an awesome trainer!


Larry is a great guy and trainer. He’s helped me lose weight and get in shape in spite of my disability. I like that he trains the whole person, physical. ,mental, and spiritual.


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