About BeFitRx
Exercise medicine for functional health, longevity, and movement capacity.
BeFitRx is a clinically informed exercise evaluation and recommendation service that helps individuals choose safe, appropriate, and sustainable forms of physical activity based on their medical history, movement capacity, and functional goals.
Rather than offering standardized fitness programs, BeFitRx translates clinical context into practical guidance for everyday movement and exercise.
Recommendations may include modalities such as pilates, yoga, structured resistance training, supervised gym programs, or low-impact recreational activity depending on individual needs.
Meet Cathy Duong, PA-C
Cathy Duong is a licensed Physician Assistant in Washington State with clinical experience in hematology-oncology and allergy/immunology. She has experience in oncology research, including bone marrow transplant and cellular therapy clinical research coordination, with involvement in Phase I–III clinical trials focused on long-term outcomes and treatment response monitoring.
She earned her Master of Physician Assistant Studies from Duke University School of Medicine.
BeFitRx is informed by both formal clinical training and over a decade of consistent strength training experience, beginning with bodybuilding and progressing into competitive powerlifting. This background supports a practical understanding of movement capacity, adaptation, and long-term physical development, without replacing clinical evaluation.
Why BeFitRx
Most exercise guidance in healthcare is brief and generalized.
Most fitness programs are not designed around medical and functional context.
BeFitRx exists to bridge this gap by providing individualized movement recommendations based on clinical evaluation and functional assessment.
The goal is not performance optimization or training programming—it is appropriate, safe, and sustainable movement selection.
Clinical Approach
Each evaluation is based on:
Medical history and relevant risk factors
Surgical history and prior injuries
Functional capacity and movement limitations
Current activity level and tolerance
Psychological or behavioral barriers to activity (e.g., anxiety, depression, low motivation)
Safety considerations and progression capacity
Recommendations are tailored to the individual’s clinical and functional profile.
Clinical Lens
BeFitRx applies a structured clinical framework to movement selection and exercise guidance.
This includes understanding:
how prior injury or surgery affects movement options
how deconditioning alters exercise tolerance and progression capacity
how different modalities (pilates, yoga, resistance training) affect joint and systemic load
how to match activity type to clinical capacity and risk profile
how psychological or behavioral factors influence exercise adherence and consistency
how to select appropriate exercise environments based on safety and supervision needs
Recommendations may include guidance on movement environments such as home-based exercise, independent gym training, supervised exercise settings, or group-based classes depending on clinical appropriateness.
The goal is to align both what type of movement is appropriate and where it occurs with the individual’s health status, capacity, and goals.
Who this is for
BeFitRx is designed for individuals who benefit from structured guidance around physical activity, including those with:
Cardiometabolic risk factors
Chronic medical conditions
Musculoskeletal pain or prior injury
History of surgery or movement limitations
Deconditioning after illness or reduced activity
Uncertainty around appropriate or safe forms of exercise
Difficulty maintaining consistent exercise routines
This is not a standardized fitness program or personal training service.
All recommendations are individualized based on clinical evaluation.
Clinical perspective
Cathy’s clinical perspective is informed by medical training and long-term strength training experience.
She has over a decade of consistent training experience spanning bodybuilding and powerlifting.
This provides practical understanding of:
progressive overload
adaptation and recovery
training around limitations or injury
long-term consistency and adherence
This combined perspective supports a grounded, clinically informed approach to exercise evaluation and recommendation.
Contact us
Have a question about BeFitRx or whether this service is appropriate for your needs?
Send us a message and we’ll respond as soon as possible.