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About Us

The gym for athletes, run by athletes


Our team of experienced athletes, sports scientists, and coaches understand there’s no ‘one size fits all’ method to fitness. At our Manassas location, every youth athlete’s program and adult training program offers personalized options to improve and identify any physical difficulties, including recovery workouts and strength building.

We believe the best approach to achieving your goals is a balanced combination of exercise and nutrition. Our aim is to help you get the best results regardless of body size, age, or fitness level.

With a team that holds both Bachelor’s and Master’s Degrees in the Health and Science fields, as well as top national certifications from the National Strength and Conditioning Association and the American College of Sports Medicine, we’re proud to say our experts also include former professional and collegiate athletes.

Meet the experts


Robin Colangelo

Robin has over 20 years of experience training youth and adult athletes. She was a two-sport Division 1 athlete in Volleyball and Softball.

  • MS Exercise, Fitness & Health Promotion
  • BS Health & Physical Education
  • NSCA- CSCS (Certified Strength and Conditioning Specialist)
  • USAW Level 1 Coach
  • Titleist Performance Institute Level 1
  • OnBase U Hitting Level 1
  • FMS
  • Precision Nutrition Certified Coach

“We’re not a one-size fits all program. We’re going to look at each client’s performance needs and create a program that’s individualized and specific to them!”


Erika Davitch

Erika has experience in figure competitions and nutrition plan development.

  • ISSA Certified Personal Trainer
  • Certified Fitness Nutrition Specialist

Her range of specialties includes adult training and nutrition plans, weight management, HIIT, and bodybuilding.

“When combining exercise and nutrition we are able to help fully develop our bodies, regardless of our age, shape, or size!”

Performance Coach

Justin Kang

Justin has years of football experience, having played for teams Frostburg State and Lake Braddock.

  • BA in Exercise Science
  • NSCA CSCS (Certified Strength & Conditioning Specialist)

His specialties include strength and conditioning, SAQP training, sports performance,
powerlifting, and adult and youth strength training.

Performance Coach

Ronel Branch

Ronel has experience in team sports including baseball, basketball, and football.

  • BS Exercise Science
  • ACSM Certified Personal Trainer
  • USAW Level 1 Coach
  • FMS

His specialties include personal training, functional movement screening, sports performance, mobility and flexibility, and general fitness.

Performance Coach

Jordan Stewart, MS, LAT, ATC

Jordan has 18 years of experience in taekwondo. She has also worked with football at the University of Richmond and baseball at George Mason University.

  • MS in Athletic Training
  • BS in Kinesiology
  • Licensed Athletic Trainer
  • BOC Certified Athletic Trainer
  • NSCA CSCS (Certified Strength & Conditioning Specialist)

Her specialties include injury prevention, rehabilitation, and recovery.

Performance Coach

Seth Moellmer

Seth has experience in personal training, and is currently studying kinesiology at George Mason University.

  • BS in Kinesiology
  • NSCA CSCS (Certified Strength & Conditioning Specialist)
  • NASM Certified Personal Trainer
  • FMS

His experience and specialities include Mobility and flexibility training, strength training, calisthenics, and weight loss.

Performance Coach

Jon Taylor

Jon has experience in sports performance training, USAPL & USPA Powerlifting, and Volleyball.

  • BS Kinesiology
  • NSCA CSCS (Certified Strength & Conditioning Specialist)
  • ACE CPT (Certified Personal Trainer)
  • USAW Level 1 Coach
General Manager

Kristina Fies

Kristina has experience in track and field and softball, having competed at the NY State Regionals and State levels. Kristina served in the United States Air Force as an Intelligence Analyst for 10 years.

  • AS Intelligence Studies, Communications

Enjoys working in a fast-paced environment with talented staff. She loves seeing the focus and drive the athletes have as they reach their goals. She hopes to make every athlete feel welcomed and important!


Shape the future of ambitious athletes

Athlete’s Addiction is not just a gym; it’s a community. We’re looking for talented athletes who have a passion for fitness in sports to join our team. Not only will you be helping train youths and adults to help them achieve their goals, but you’ll be working alongside a positive and collaborative team in a friendly and welcoming environment.

If you’re interested in expanding your career with Athlete’s Addiction and becoming part of the team, don’t hesitate to contact us. We look forward to hearing from you.

10050 Pennsylvania Ave
Manassas, VA 20110