Trainer Details

Building A Community of Fitness Athletic
OSA AIgbuza

OSA AIgbuza


  • Bachelor of Science- Business Administration, Concentration in Marketing

  • Minor Kinesiology, Concentration in Sports Business

  • AAAI/ISMA certified personal Trainer

  • National Physique Competitor

  • AHA Heart Savers – AED /CPR certified


I’m one of the few people in San Francisco  that was born and raised here. I love this city. Additionally, I’ve always had a passion for fitness growing up which is why I played as many sports as I could. Right away, I fell in love with football, basketball, track & field, and recently boxing. All of which shape my personal training style now. My passion for being a trainer comes from the opportunity I get day in and day out to help people get just one step closer to their goals. I’m your trainer who’ll be there for you every step of the way just be prepared to work!

The acquisition of knowledge, his willingness to receive. Instruction, his reverence for learned and virtuous men, his attendance upon the teacher.Training is part of preparation.


  • Muscle building 

  • Weight loss Weight management 

  • Boxing

  • Functional Training 

  • Strength and Conditioning 

  • Nutrition counseling 

  • Speed and Agility

  • Goal Setting 

  • Core Strengthening   

Contact Me

A Word from Trainee

"After three years of going seriously bonkers with my tech neck, keyboard elbows, computer shoulders, carpal and cubital stuff. Could hardly sit, stand or lie down. Name it, tried it: acupuncture, chiropractor, digital detox, ergonomic stuff, gadgets, osteopath, yoga, physiotherapy etc. Finally savior arrived in the form of Bill Mohler, the best Personal Trainer in the world. In four months at the gym we have gone from hardly being able to do anything to totally functional. Not once has it been boring, this kind and fun guy always comes up with new tricks and my muscles, nerves, joints love it. Today I am officially out of rehabilitation and moving on to building fitness! Halleluja!"


Gym Trainee

"I have worked with Bill over the past four years. He is an extraordinary teacher and coach. In addition to his significant technical knowledge, he is a great listener and does a good job of tailoring workouts to your needs. He is also just a pleasure to spend time with."


Gym Trainee

"Training with Bill does it for me. I get bored in a gym easily. To stay in shape I'm used to changing things around in terms of how I exercise. With Bill I reached a new level. It's no longer about getting stronger, faster, more flexible, and agile. It's about getting full awareness and conscious control of my body for the life I want to enjoy. And, yeah, I get pretty strong and flexible in the process, which I, too, enjoy."


Gym Trainee

"Bill is among the most inspiring fitness professionals I have met. I have attended his yoga classes and his Yamuna ball rolling classes, and I have been relieved of severe back tension and pain through his thai massage. So, how is he inspiring? His style is not that of the "rahrah," over-muscled, steroidy body builder. Bill's style exudes strength and power that comes from his solid spiritual core. So whether he's guiding me through a yoga session, a Yamuna session, or even weight training, I feel growth, strength, and in healing in my spirit as well as my body. Bill's unique life experience and perspective makes this possible."


Gym Trainee