Then revel in the glory after proving them wrong.

The mission at UDEFY is to empower and motivate people of all ages to become the best versions of themselves possible. Through the power of exercise, nutrition, and unparalleled service and support, we guide you through the journey one step at a time.

“Just a shout-out to Youssef for being extremely professional. He never made me feel embarrassed and was very patient in training me.”

MaryAnn W.

Bullish On Success

Our logo features a bull’s head for a reason. Because bulls exhibit the behavior of champions. A strong will, belligerence, energy, stamina, strength, and (of course) a powerful, muscular physique.

And just as with the bull, strong-willed warriors are hard to dissuade once they commit to something. Because with fitness – as in life – pushing yourself beyond your comfort zone is where real change takes place.

After all, why would you train to get stronger if your mind doesn’t follow suit?


So, why choose UDEFY over all the rest? Well, for starters, let’s talk about certification. As a proud member of the American Council on Exercise, Youssef Youssef is certified in many of the most in-demand areas of fitness training. For example:

ACE Certified Personal Trainer – the gold standard in coaching certification. Focusing on the four core elements that comprise the foundation of successful personal training:

  • Client interviews and assessments
  • Program design and implementation
  • Training progression and modifications
  • Personal conduct, safety and risk management.

ACE Fitness Nutrition Specialist – specialty training to provide scientifically supported, practical nutrition advice. Designed to assist others in navigating the minefield of poor food choices and questionable diet advice that’s become all too common.

ACE Weight Management Specialist – knowledge to help clients find long-term weight management success through the concepts of behavior modification, nutrition counseling, and targeted exercise routines.

Trigger Point Therapy Myofascial Compression Techniques Specialist – the secret that athletes around the world use to work hard and stay injury-free. Training rooted in proper breathing, muscular elasticity (stretch), hydration, and muscle maintenance. Resulting in reduced pain and inflammation, better flexibility and improved performance.

CPR/AED Certified – lifesaving training that can make all the difference in an everyday emergency. From sprains and strains – to choking and heart attacks – Youssef Youssef is American Red Cross certified to handle whatever comes his way.


When you couple this much in-depth fitness knowledge - alongside highly-customized training programs - you can’t help but generate results.

UDEFY bypasses the traditional hype and fitness gimmicks found elsewhere. Instead, we focus on fundamental training and nutrition principles used by coaches and professional athletes from around the world.

Our entire program line is safe, effective and proven to generate results. We take pride in delivering superior training and unparalleled support to our clients. After all, if we’re not giving our best, how could we expect any less from you?

If you’re tired of crowded box gyms, generic training programs, or if you’re just looking for something different then UDEFY is for you.

Stop beating yourself up with crazy workouts or spending a fortune on junk you don’t need. Whether you’re looking to bulk up, slim down, improve performance or gain more confidence we can help.

“I have enjoyed my 6 months plus of training with Youssef. We have achieved many of my goals and had so much fun doing it! He really listens, always ensures my safety and has awakened my inner beast!”

Andrea C.

We serve the entire Woodbridge and DMV (D.C., Maryland, Virginia) metro area. We take pride in serving our clients, offering fun and productive workouts, and delivering a personalized touch that makes all the difference.

Give us a call today or Contact us online to get started. We’ll gladly walk you through the entire process and explain what your options are. Best of all, your first two workouts are FREE!

Go ahead – try us out. Then decide whether or not it’s right for you. No pressure, no hype, just honest training that gets results.