Bob Tygenhof, CPT

About Bob Tygenhof, CPT

Once your medical provider establishes an overall treatment plan, Bob Tygenhof, our ACSM-Certified Personal Trainer, will help you implement the prescribed lifestyle changes. As a certified Lifestyle Educator, he can assist you through the detoxification process, help you navigate the challenges of a Fasting Mimicking Diet (ProLon) program, guide you through one of our weight-loss programs, and then help you transition to a long-term nutrition program customized to your specific medical condition and personal tastes. Bob is well-versed in Mediterranean, vegetarian, paleo, ketogenic, and Atkins diets; stays up-to-date on the latest nutrition research; and coordinates all recommendations with your medical provider.

If fitness is recommended – and it always is – then Bob will start the process with a baseline fitness assessment geared to your age and fitness status. Next comes the exercise prescription , with specific exercise routines matched to your particular strengths and weaknesses. If it suits your schedule and preferences, Bob can then work with you on an individual basis or in a small-group setting to provide personal training services at our in-office fitness studio. He will keep your doctor fully apprised of your fitness progress and status.

Bob has been physically active his entire life – from wrestling and rowing crew at Princeton University to coaching his four children in soccer and baseball. He currently lifts weights five times each week, while running and cycling the other two days. He is a graduate of Irvine Valley College’s Fitness Specialist program and is certified as a personal trainer by the American College of Sports Medicine, the oldest and largest of the fitness industry’s certifying organizations.


  • Lifestyle Educator: Metagenics | San Clemente, Calif.
  • Fitness Specialist Certificate: Irvine Valley College | Irvine, Calif.
  • M.A. degree: University of Southern California | Los Angeles, Calif.
  • Graduate Fellowship: American University in Cairo | Cairo, Egypt
  • A.B. degree: Princeton University | Princeton, N.J.


  • Lifestyle Educator: Metagenics
  • Personal Trainer: American College of Sports Medicine
  • First Aid and CPR/AED certified: American Red Cross

Lectures and Presentations

  • Polycystic Ovarian Syndrome – An Integrative Approach to a Complex Epidemic, October 31, 2013. International Congress for Clinicians in Complementary and Integrative Medicine, Northwestern Memorial Hospital | Chicago, Illinois.
  • PCOS and Exercise, November 17, 2015.  PCOS-2015, Polycystic Ovarian Syndrome Medical Conference | Seattle, Washington.
  • Exercise and Fitness – Keys to Healthy Living for You and Your Patients, March 23, 2016. Orange County Medical Association | Irvine, California.

When it comes to lifestyle change, Bob believes that gradual, yet impactful, progress is usually the best way to go. This allows your body, mind, and spirit to adapt without becoming overwhelmed. While achieving ultimate goals takes longer, a measured approach is almost always safer, more enjoyable, and far more successful.


Bob is available to see patients on most days of the week, and appointments can usually be arranged within one to two days. Please click here, if you would like to make an appointment.