You want an objective resting-energy baseline.
Resting Metabolic Rate · Ashburn, VA
Measure resting energy needs instead of relying on an equation.
Plan on 30–45 minutes: check in, complete a body composition scan, then relax and breathe normally into a tube for about 15 minutes while we measure your resting metabolic rate.
FormatBody composition scan + 15-minute breathing test · 30–45 minutes total
Designed ForClients refining nutrition or body-composition planning
First StepFast at least 7 hours · Plain water is fine
Before Your RMR Test
Three simple preparation steps.
01 / Fast at least 7 hours
No food or calorie-containing drinks. Plain water is fine.
02 / Skip caffeine and exercise
Avoid both on the day of your test so you arrive ready to rest.
03 / Let us know if fasting is difficult
Contact us before your visit if fasting may not be appropriate for you. Do not change prescribed medication on your own.
Why fast? Digesting food can raise the energy measured during a test intended to reflect your resting baseline. A morning appointment after a normal overnight fast is often easiest.
RMR Testing in Ashburn
A clear service. A purposeful place in your plan.
Before your test, have no food or calorie-containing drinks for at least seven hours. Plain water is fine. Fasting helps keep the energy your body spends digesting food from influencing a measurement intended to reflect rest. It is not a test of how long you can go without eating; contact us in advance if fasting may not be appropriate for you.
At the front desk, check in for your appointment. Your visit includes a body composition scan followed by RMR testing. A soft clip closes your nostrils while you breathe normally through the mouthpiece or tube in a relaxed state for about 15 minutes; there is no exercise component.
Indirect calorimetry uses the oxygen you breathe in and carbon dioxide you breathe out to estimate resting energy expenditure. The whole appointment generally takes 30–45 minutes. Results are one input for nutrition planning alongside activity, goals, and health context; RMR is a separately booked service from the Fitness Assessment.
Is This the Right Fit?
Choose this service when…
You are refining nutrition or body-composition planning.
You understand that RMR is one part of the larger energy-needs picture.
What Defines the Service
Specific enough to compare. Flexible enough to individualize.
Every service has a distinct purpose. The exact session still responds to your assessment, goals, history, and current capacity.
Simple Preparation
Fast for at least seven hours; plain water is fine. Avoid caffeine and exercise before the test, and contact us if fasting may not be appropriate for you.
Body Composition Scan
Complete a body composition scan as part of your visit before the resting measurement.
15-Minute Breathing Test
With a soft nose clip in place, breathe normally through a tube while you relax; no exercise is involved.
RMR Estimate
Review the estimated energy your body uses at rest.
How It Works
Clarity before intensity.
Prepare & Check In
Fast for at least seven hours, then check in at the front desk when you arrive.
Body Composition Scan
Complete the body composition scan before the RMR portion of your visit.
Rest & Breathe
Relax while a soft nose clip directs your normal breathing through the tube for about 15 minutes.
Review Your Baseline
Discuss the estimated resting energy expenditure in context. Allow 30–45 minutes for the full visit.
Common Questions
Know what you are choosing.
Still unsure? Text or call 703-944-2626. The Elite Wellness team responds quickly and can help identify the correct starting point.
How long do I need to fast before RMR Testing?
Have no food or calorie-containing drinks for at least seven hours before the test. Plain water is fine. Avoid caffeine and exercise before testing. If fasting may not be appropriate for you, contact us before your appointment for guidance; do not change prescribed medications on your own.
Why is fasting required?
Digesting a recent meal temporarily increases energy use. A fast helps us measure a more consistent resting baseline rather than the energy your body is using to process food.
What happens at the appointment, and how long does it take?
Check in at the front desk, complete a body composition scan, then relax with a soft nose clip while you breathe normally through a tube for about 15 minutes. Plan on 30–45 minutes total for the visit.
Is RMR Testing included in the Fitness Assessment?
No. RMR Testing is booked separately because it answers a specific metabolic and nutrition-planning question.
Does RMR tell me exactly what to eat?
No. RMR estimates resting energy expenditure. Nutrition planning also considers activity, training, goals, preferences, and relevant health context.
Elite Wellness · Ashburn, Virginia
Choose the right next step—without guessing.
Open seven days a week by appointment. New clients can start with the recommended evaluation; returning clients can use the established-service action.