
Metabolic Testing in Grand JunctionSTOP GUESSING AT EFFORT.
START WITH A BASELINE.
Understand your resting energy needs and exercise capacity with Michael David Cook. TNL offers two complementary metabolic tests to help inform nutrition and training:
Resting Metabolic Rate (RMR) testing measures the energy your body uses at rest to support essential functions. Combined with your activity level and goals, it helps inform personalized calorie targets and nutritional guidelines for fueling training, recovery and body composition. Resting needs are only part of your total daily energy needs—not your complete daily calorie target.
VO₂ (Active Metabolic Rate, or AMR) testing assesses oxygen use and energy expenditure during exercise. It helps you understand aerobic fitness and identify appropriate training intensities and heart-rate zones, so conditioning sessions have a clearer purpose and progress can be tracked over time.
A NUMBER IS NOT
THE WHOLE PLAN.
Testing may help describe where you are today. It does not know your history, your goals or what you can sustain. That is why interpretation and coaching matter.
INFORMATION YOU CAN USE.
Start with your goal, then discuss the right testing method and what it includes with Michael. Your history and current activity matter as much as the measurement.
Start with the question.
Discuss your nutrition or conditioning goals and whether RMR testing, VO₂ testing or both would provide useful information.
Understand the baseline.
Consider training history, current activity and factors that shape how results should be interpreted.
Connect data to daily life.
Use resting-energy findings to inform nutrition alongside activity and goals. Use exercise findings to guide conditioning intensity and heart-rate zones, rather than chase a number in isolation.
Revisit if appropriate.
Compare like with like when a repeat measure makes sense for your goal and training.
WHAT QUESTION SHOULD YOUR TEST ANSWER?
Metabolic testing at TNL in Grand Junction includes RMR and VO₂ testing. RMR helps inform nutrition decisions; VO₂ helps inform conditioning. Each answers a different question about your starting point.
Inform your nutrition and fueling.
RMR testing measures the energy your body uses at rest for essential functions. It can make nutrition discussions less dependent on generic estimates. Your activity, training and goals still matter: RMR alone is not your complete daily calorie target. RMR is measured at rest, not during the exercise shown in the photographs.
Make conditioning more specific.
VO₂ testing assesses oxygen use during exercise to help you understand aerobic capacity and appropriate heart-rate training zones. A measured baseline can help distinguish easier sessions from higher-intensity work and track progress; it does not replace your training history, recovery needs or coaching judgment.
Confirm suitability and the practical details.
Tell Michael about your current exercise, goals and any medical guidance. Ask which test fits your question, what the current appointment includes, the price and the preparation instructions. Follow the instructions for your actual appointment rather than a generic online checklist.

THE TEST IS NOT THE COACH.
Michael’s coaching experience is what gives information a job. Testing can support a decision; it cannot replace observation, conversation or a plan that responds to you.
Testing is for fitness and training context, not medical diagnosis. Discuss medical concerns and testing suitability with a qualified healthcare professional.
Request a consultationWHAT COUNTS AS PROGRESS?
A repeatable measure can help frame a before-and-after discussion when the method and conditions are comparable. Without a real personal baseline, a chart or sample score proves nothing about you.
No test value, physiological improvement or health outcome is guaranteed or represented here.
Explore related coaching: nutrition coaching · sports performance training.
QUESTIONS BEFORE YOU START.
What is metabolic testing at TNL?
TNL offers two complementary metabolic tests.
Resting Metabolic Rate (RMR) testing measures energy use at rest. Considered alongside your activity and goals, it helps inform nutrition, fueling and recovery decisions.
VO₂ (Active Metabolic Rate, or AMR) testing measures oxygen use and energy expenditure during exercise. It helps assess aerobic fitness and guide training intensity and heart-rate zones.
Does RMR tell me exactly how many calories to eat?
No. RMR measures energy use at rest, not your complete daily energy expenditure. Activity, training, goals and how you respond also matter when discussing nutritional guidelines. RMR alone is not a daily calorie prescription.
Will a test tell me exactly how to train?
Testing provides a measured starting point, not a one-size-fits-all prescription. VO₂ results can include your VO₂ score, average heart rate, maximum heart rate recorded during the test, an estimated training age and individualized heart-rate training zones.
Michael interprets these findings alongside your training history, goals and current ability to guide exercise intensity, conditioning and recovery. Knowing which heart-rate zones to target helps you train with purpose, distinguish easier sessions from higher-intensity work and track progress over time—rather than rely on guesswork or simply hope for results.
Is it a medical test?
This is described as fitness-related testing, not medical diagnosis. Seek medical guidance for health concerns or questions about suitability.
Should I choose RMR testing, VO₂ testing or both?
Start with your goal. RMR testing looks at resting energy needs and can inform nutrition discussions alongside your activity and goals. VO₂ testing looks at oxygen use during exercise and can inform conditioning and heart-rate zones. Both provide useful but different information; you do not automatically need both tests.
How should I prepare, and what does testing cost?
Ask Michael for current pricing, what your appointment includes and the preparation instructions for the specific test you choose. Confirm any relevant medical guidance before exercise testing. Do not change medications or follow an unverified fasting or exercise protocol based on this page.
GET THE RIGHT INFORMATION.
Tell Michael what you want to understand about your nutrition and training. Ask about RMR and VO₂ testing, suitability, current pricing and how the findings could inform your next steps.
