Edge Fitness
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Meet the Team



Your training program starts with a motivated, knowledgeable fitness professional.

We are committed to the highest standards of excellence. You should expect nothing less. Every time you train our goal is to motivate, challenge, and educate you to be your best while you have fun along the way.

We go beyond a standard personal training certification. In addition to our university exercise science education, we better ourselves professionally through yearly continuing education (CECs) seminars and workshops. These CECs maintain our degrees and certifications, but more importantly allow us to apply the most current and effective information to all our 8 Week Edge™ programs.

Along with our desire to commit to this excellence we have an advisory board that we consult with and refer to whenever necessary.


Derek Heintz, Owner/Fitness Director

Derek is one of the leading fitness experts in San Diego. With his strong background in nutrition and fitness education and 15 years of personal training experience, Derek created the 8 Week Edge™ program: a customized fitness system designed to help you take your fitness to the next level.

Derek has a B.S. in Exercise Science from the University of California, Davis as well as Personal Trainer and Integrated Flexibility Specialist certifications through the National Academy of Sports Medicine (NASM). He is Resistance Training Specialist Certified, a Certified Sports Nutritionist, and a member and article contributor for the IDEA Health & Fitness International Association. 

Not only does Derek motivate you with his approachable, 'can do' attitude, but his commitment to fitness education will empower you with the knowledge and skills you need to maintain a healthy lifestyle.


Blake Koehn, MS, CSCS, Advanced Fitness Trainer

Blake’s prior athletic and academic background has helped him develop a comprehensive knowledge on the physiology, function, and injury prevention of the human body.

Blake has a bachelor's degree in exercise science and master’s degree in exercise physiology from San Diego State University. Along with his education, Blake is a certified strength and conditioning specialist (CSCS) through the National Strengthand Conditioning Association (NSCA). He is also a member of the IDEA Health & Fitness International Association.

His strong passion for health and fitness carries over from his personal life into his client’s lives as well. Helping others incorporate healthy habits to positively impact their lives is his greatest reward as a personal trainer and strength coach. 

Advisory Board


Justin Price, M.A.
Biomechanics Specialist

Rachel Krentzman, RPT, RYT
Yoga Therapist and Physical Therapy

Dr. Shawn Robek
Chiropractic Care and Active Release Technique

Eva Wennes, CPI
Pilates Method

Dr. Brett Heintz, Doctor of Pharmacy

Dr. Orville Kolterman, M.D.
Endocrinology and Diabetes Specialist

Mary Bratcher, MA, DipLC
Wellness and Life Coaching

Tara Coleman, B.S., C.N.
Clinical Nutritionist

I finally got that extra 10 pounds off. Derek motivated me to push it that little bit extra in my workouts. What a difference a few small changes make.
— Jennifer, Business Professional and mother of one very active toddler