FitFusionSTL is a private, personal, and small group training studio that believes in training the WHOLE person in a non-intimidating environment. As a mom of two busy kids, I too have started from ground zero and realize the challenges. I am committed to helping you reach your personal health and fitness goals.

FitFusionSTL Fitness training and small group fitness classes by personal trainer, Tamberlyn Bieri of St. Louis, Missouri.
FitFusionSTL Fitness training and small group fitness classes by personal trainer, Tamberlyn Bieri of St. Louis, Missouri.

Get tips and motivational advice for your
personal fitness and health goals.

FitFusionSTL is a private, personal, and small group training studio that believes in training the WHOLE person in a non-intimidating environment. I am committed to helping you reach your personal health and fitness goals.

As a mom of two busy kids, I too have started from ground zero and realize the challenges. I left my research position of 17 years at Washington University School of Medicine, to pursue my dream of having a direct and personal impact to help people change their lives.

I received my BS in Biochemistry and my CPT from the International Sports Sciences Association. I focus on your fitness goals as well as offer you nutrition guidance and tools.

To better serve my clientele as well as the increasing need for individual specialization, I am also certified to train those with:

  • Parkinson's Disease
  • Severe Osteopenia/Osteoporosis
  • Osteoarthritis
  • Senior Training
  • Prenatal and Postnatal

I also have experience with Traumatic Brain Injury clients. My TBI clients have increased strength and mobility along with improved motor function with weight and balance training.

FitFusionSTL Fitness training and small group fitness classes by personal trainer, Tamberlyn Bieri of St. Louis, Missouri.

I am so glad that my friend Dala introduced me to FitFusionSTL. I love the results that I am seeing. The challenging workouts are always different and fun. I love that she has YOU doing the work, not a machine. The environment is always upbeat and encouraging. Thank you, Tamberlyn. - Trish

I love my workouts with Tamberlyn. I get a well rounded and challenging workout every time. She's very knowledgeable about health and fitness. Tamberlyn genuinely cares about the outcomes for her clients. - Shannon

Tamberlyn, has been a great motivator! Her personal attention to my work out has pushed me reach another fitness level. - Debbie

I like the variety of exercises that Tamberlyn provides because I am never bored and an hour simply flies by. She has a lot of knowledge that she shares freely. I appreciate the personalized approach to my fitness and I am losing weight, firming up and feel energized in ways I haven't felt in years. I feel awesome and less stressed. I have developed a new way of life and like it a lot. Thank you. - MaryBeth

I really like her as a personal trainer because she gives you that personal attention for your body and your concerns. I was afraid to workout because of issues with my knee and foot. She was able to help me workout fully and totally without further injury. I am now able to do so much more then when I started and more then I ever expected I could. - Joyce

I love the workouts with Tamberlyn and the gang at FitFusion! Tam's workouts are creative and difficult, but they work and I feel great (after I'm done.) The camaraderie and encouragement are motivating! - Karen