Resting energy needs
Understand the energy your body expends at rest through measurement rather than a population-based prediction.
Testing & Assessments
PNOĒ Metabolic
Analysis.
See how your body uses oxygen, produces energy and shifts between fuels—then translate that respiratory data into a more informed starting point for nutrition, training and your Longevity Gyms Circuit.
Breath by breathDirect respiratory gas measurement
Rest + exertionTwo views of metabolic demand
Personalized reviewResults translated into next steps
Repeatable baselineReassess measurable change
What It IsYour metabolism,
Your metabolism,
measured in real time.
PNOĒ uses indirect calorimetry: you breathe through a fitted mask while the system measures oxygen consumption and carbon-dioxide production. Those gases reveal how your body is meeting its energy demands at rest and as workload changes.
The value is not simply collecting more numbers. It is bringing multiple metabolic signals into one interpretable view so your starting plan can reflect your actual physiology rather than generalized calorie equations or age-based training formulas.
PNOĒ is the measurement and analysis system. VO₂ Max and resting metabolic rate are distinct assessments that may contribute to the broader metabolic picture.
What You Learn01 · ENERGY 02 · FUEL 03 · CAPACITY 04 · THRESHOLDS 05 · EFFICIENCY 06 · DIRECTION
From respiratory data to usable direction.
Fuel utilization
See the relative contribution of fat and carbohydrate to energy production under the conditions measured.
Aerobic response
Evaluate how oxygen use and energy demand change as exercise intensity rises.
Intensity transitions
Identify meaningful shifts in your respiratory response that can help inform individualized training intensity.
Metabolic efficiency
Place energy expenditure, fuel selection and exercise response into a more complete functional context.
Personalized next steps
Use your results with your goals, history and other assessments to guide the next phase of your plan.
The exact outputs available depend on the testing protocol completed. Your team will identify which assessment—or combination of assessments—fits the question you are trying to answer.
Know the DifferenceVO₂ Max Resting Metabolic Rate PNOĒ Analysis
Related tests. Different questions.
How large is your aerobic engine?
A progressive exercise assessment focused on maximal oxygen use, ventilatory thresholds and training zones.
What does your body require at rest?
A quiet, resting assessment used to measure baseline energy expenditure and resting fuel utilization.
How do the metabolic signals connect?
A broader interpretation of respiratory data designed to turn measured physiology into useful training, nutrition and lifestyle context.
Your Assessment
What to expect.
01 · BEFORE
Prepare
- Follow the food, caffeine and exercise instructions provided by our team
- Bring comfortable clothing and training shoes if exercise testing is included
- Share relevant health conditions, symptoms and medications
- Arrive ready to review the question you want the testing to answer
02 · DURING
Measure
- Wear a fitted mask connected to the metabolic analyzer
- Complete the selected resting, exercise or combined protocol
- Allow the system to measure oxygen and carbon dioxide breath by breath
- Follow technician guidance throughout the assessment
03 · AFTER
Interpret
- Review the most relevant findings in plain language
- Connect the results to your current goals and baseline
- Identify appropriate nutrition, conditioning or Circuit considerations
- Choose a meaningful interval for reassessment
Who It Is For
Better decisions begin with better inputs.
PNOĒ can be useful when generic calculators, wearable estimates and one-size-fits-all recommendations are not enough. The goal is to establish a clearer metabolic baseline and use it to ask better questions about training, energy intake and progress.
People seeking measured energy needs instead of a calorie estimate
Athletes who want metabolic context for endurance and conditioning
Adults building a data-informed longevity or body-composition plan
People whose progress has plateaued despite consistent effort
Wearable users who want direct respiratory measurements for comparison
Members who want an objective baseline before beginning a Circuit
How It FitsStep One Step Two Step Three
Measure. Match. Re-measure.
Measure metabolism
Collect direct respiratory data using the protocol that matches the question and your current capacity.
Match the plan
Use the findings with your goals and other assessments to inform nutrition, training and service selection.
Re-measure the response
Repeat the relevant assessment after an appropriate interval to determine what has actually changed.
Frequently Asked
Questions answered.
Is PNOĒ the same as a VO₂ Max test?
No. PNOĒ is a metabolic-analysis system that can measure respiratory data during different protocols. VO₂ Max is a specific maximal-exercise assessment. If your goal requires VO₂ Max, the exercise protocol must be performed rather than inferred from a resting test.
Is PNOĒ the same as resting metabolic rate testing?
Not exactly. Resting metabolic rate is one specific measurement performed at rest. PNOĒ may be used to conduct and interpret that assessment, but its analysis can extend to exercise-related metabolic data when the appropriate protocol is completed.
Do I have to exercise?
That depends on the assessment selected. A resting protocol is performed quietly, while an active protocol involves controlled exercise. We will match the testing format to your goal and screening results.
How should I prepare?
Preparation depends on the protocol. You may be asked to avoid food, caffeine, nicotine and strenuous exercise for a defined period beforehand. Follow the instructions from our team because preparation can materially affect metabolic measurements.
Will I receive a meal plan or exercise prescription?
Your results can inform nutrition and training decisions, but the exact deliverable depends on the service you book and the professionals involved. Testing data is not automatically a medical nutrition plan or a diagnosis.
When should I repeat the test?
The right interval depends on your goal, the changes you are making and which measurement you want to track. We establish a retesting point only after allowing enough time for a meaningful response.
Continue Testing
Build a more complete baseline.
Your Baseline Starts Here
Stop guessing how your body produces energy.
Tell us what you want to improve. We will help determine which PNOĒ protocol—and which supporting assessments—belong at your starting point.
Start Your Upgrade →PNOĒ metabolic testing is an assessment and educational service, not a diagnosis or treatment. Available measurements depend on the protocol performed. Participation is subject to appropriate screening, and individual results vary.