FitnessDx is a physician-designed physical fitness testing service.

Using a combination of advanced body measurements and cutting-edge biomarkers we give you deep insights about your health, fitness and disease risks.


  Body Measures

Going beyond the scale

Total body mass (aka. weight) can certainly confer health status or risks when at extreme levels. In many  simple body weight may not tell the whole story in moderate states of weight or as positive changes are being made. Determination of distribution (shape) and tissue types (aka. composition) can give a more complete picture of fitness.

Body composition (including fat, muscle, water) can be measured in a number of ways, but each method alone has some potential pitfalls. We use a device called seca mBCA 525 Medical Body Composition Analyzer which uses bioimpedance (electrical current) to estimate mass of tissues. It has been validated against the medical gold-standard for body composition testing (called "Four Compartment Model") to 95% accuracy.

With each measurement you will be provided with a report card with basic measures and a more detailed composition report from mBCA. 



A deeper look inside

Biomarkers, often called “labs”, are measurable substances that can be an indicator of biologic state or condition. We offer a number of lab packages that give a deeper picture than standard "physical" would include routinely. These biomarkers can be categorized in a number of ways, but we divide them as lipids, vascular inflammation, metabolic, or blood health. (LEARN MORE) For this purpose, we are looking at labs to help determine risk of cardiovascular disease (heart attack, stroke) and development of diabetes. Even without high risks, these values can can used to track fitness and weight loss efforts. 

Biomarker Panel



Example Report
(Advanced Biomarkers)


Quantify cardiovascular shape

The body’s response to physical training is amazing. Everyone knows that getting in better shape will help you run faster and go farther; our exercise tolerance testing measures those physiology improvements objectively. FitnessDx’s functional treadmill exam quantifies cardiovascular efficiency that can be tracked over time. Our standardized protocol allows for calculation of a participant's maximum metabolic equivalents (energy output), VO2 max and a “FIT Score” (a predictor of 10 year survival). Now, you won’t have to guesstimate how good of shape you are in.

Measuring Improvements

FitnessDx was designed to help you track improvements in fitness and health risks over time while you are optimizing your health. Results in "moderate" or "high" categories are an indication of increased risk of poor health events (e.g. heart attack or development of diabetes). Having results in a “low risk” or “normal” category is the goal, but may not be possible in all individuals due to a variety of factors. Regardless of starting levels, improving numbers may be slow even with a consistent, good effort.

We recommend retesting every 3-4 months to help give you feedback about your efforts. Some natural physiologic and technical (lab equipment) variability is expected. So, small changes in numbers across a couple tests shouldn’t be taken as proof of progress or decline.

How to improve?

Lifestyle changes, such as improved diet and optimizing physical activities, are generally the healthiest way to improve these results and reduce health risks. Given every individual has a unique health history and goals, specific recommendations about medical care or treatments cannot be made solely based on these results. FitnessDx strongly recommends a relationship with a primary care physician to help develop a personalized plan; especially if chronic diseases present or medications are being used.

Other Health Factors

Many important health issues -- including genetics, chronic diseases (hypertension, etc.), past health events, family history, tobacco use, medications and more -- are NOT covered by this assessment. These results should be taken in the context of a broader health history in consultation with a Primary Care Physician or other qualified medical provider.