Tru-Fit of



South Florida's Expert in Fitness and Fat Loss
since 2005. 
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"When it comes to fitness training, South Florida trainer / kinesiologist, A Kreig Marks is a leader in functional training.  When it comes to specialized training, working with people living with Parkinson's Disease and Multiple Sclerosis, Kreig is a master at his craft.  With Kreig Marks, you're getting the best of the best."  

CNN Healthcare

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Now offering Home-Based Training for your convenience in Boca Raton, Boynton Beach, Delray Beach and Wellington.

     "My mission is to create a personalized fitness program for you that delivers the results you’ve always dreamed of.  Whether you want to train in-studio or in the comfort of your home, contact me and let me enhance your health, energy, and overall lifestyle."


A. Kreig  Marks (Owner/Lead Trainer)

Tru-Fit of South Florida is an elite, family owned and operated, private fitness company encompassing expert fitness training, physical therapy, nutrition and life coaching.  Our skilled training  practices incorporate the most advanced methods available, combining kinesiology, exercise physiology, and nutrition. 

For 2018 and 2019 and 2020, Tru-Fit was awarded the prestigious "Best of Davie Award" for private fitness studios.  


A. Kreig Marks is a father to 4 incredible kids, husband to a loving wife, and owner/founder of Tru-Fit of South Florida. You may have heard of him or even seen him on National TV being interviewed about Parkinson's Disease, something he is very passionate about ever since his late father was diagnosed in 1994. 

Kreig's life has always been a fitness-oriented lifestyle.  Many of his clients are not aware that in his younger days, he was a nationally ranked collegiate wrestler with Olympic aspirations. Unfortunately, a serious neck injury kept him from pursuing his Olympic goal. However, after recovering from his injury, he became a physical therapist – which led him to become a specialized fitness trainer. These past experiences in strength training, agility training and conditioning helped him to create interesting fitness challenges…and it became his life-long passion.   

After graduating college, Kreig began a successful fitness training and physical therapy practice as a cardiovascular rehab, shoulder, back and knee specialist.  In 1994, his father  was diagnosed with Parkinson’s Disease and wanting to help him, Kreig developed a specialized training program for people living with Parkinson’s or Multiple Sclerosis: the Kinesio-Arts Training Program. This program, the first of it's kind to include non-contact boxing, has had much media attention and is internationally recognized for its results and copyrighted. 

Kreig has been a personal trainer to collegiate and professional athletes, Olympians, celebrities, fitness models and corporate executives.   However, a majority of his clients are hard working, everyday people who are just as busy and want fast, permanent results just like everyone else.  Kreig is here to make sure you put in the effort to get those results.


For over 23 years, Kreig has been training clients and actively researching fitness and different methods to help his clients achieve their goals.  There's no magic pill or potion.  If you put in the effort with Kreig and incorporate a healthy lifestyle, you will achieve the results you crave.  
Kreig is fortunate to have a career that he loves.  What he enjoys most each day is seeing his clients achieve their health and fitness goals.  Getting in shape is not meant to be a torturous endeavor. There may be a sore muscle or two along the way, but achieving your fitness goals should be enjoyed, not dreaded.




     "I have the responsibility to help change lives for a living, which is not only a privilege but incredibly fun and fulfilling as well. I firmly believe in the positive benefits fitness brings to all areas of our lives; making us stronger in both body and mind, more confident, and better able to tackle the challenges everyday life throws at us."


See you in the studio!

        A Kreig Marks

Kreig's Credentials

Certified Athletic Trainer - Univ of Tennessee

ACE Certified Trainer

NASM Certified Trainer

Physical Therapy- Univ of Tennessee Memphis 

Certified Strength & Conditioning Specialist

Certified Sports Nutritionist

Certified Cervical Spine Specialist

Certified Lumbar Spine Specialist

Certified Knee Rehabilitation Specialist

Certified Shoulder Rehabilitation Specialist

Certified Parkinson's Rehabilitation Specialist

Certified Balance & Movement Specialist

Certified Functional Stretch Therapistf

Licensed Massage Therapist


Personal Training is a popular trend in the fitness world today. Whether you’re training to be the next Olympic athlete or just want to get into better shape, our private or semi-private programs will help improve your fitness and have you feeling great. You’ll soon see an improvement in your performance.


All it takes is 30 to 40 minutes and you’re done.  Do your body a favor and get your blood pumping. Health and fitness is as much about what your body looks like on the outside as it is about how it functions on the inside. Your heart is a muscle, too, and our Metabolic Circuit Program based on interval training will get your heart-rate up. Your body will thank you for it!


Tru-Fit of South Florida makes training convenient.  Whether you prefer in-studio training or training in the comfort of your own home, we can accommodate your needs and design a personalized fitness program to help you reach all of your health and fitness goals.   


Full-Service Program

Sign up today for our

Full-Service Program.

This is a 90 minute, Home-Based program.  We travel to you and bring all necessary equipment. 



45 Minute One-on-One Private Fitness Training

15 Minute Functional Stretching 

30 Minutes Therapeutic Massage

(Optional)  45 Minutes Therapeutic Massage in lieu of Functional Stretching


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10400 Griffin Road  Cooper City, Fl  33328

Tel: 954-451-1899

10400 Griffin Road, Suite 304D Cooper City