Do I need to be a patient of DeVito Internal Medicine & Pediatrics to schedule testing?

No. Metabolic and VO₂ max testing is available to both patients of the practice and non-members.

How long does each test take? And how are the tests conducted?

RMR testing typically takes about 15 minutes (plus a 10-15 minute review of results). AMR / VO₂ max testing takes approximately 20 minutes, including warm-up and cool-down (plus a 10-15 minute review of results). The resting Metabolic rate (RMR) test is performed while you are seated or lying comfortably on a padded exam table, breathing normally through a mask while your resting energy expenditure is measured. The VO₂ max test is performed on a stationary air-resistance bike (Rogue Echo Bike). You pedal with your legs while gently pushing and pulling the moving handles with your arms. The resistance increases naturally based on your effort, and the test progresses in stages while your breathing and heart rate are measured.

Is this the same as a medical cardiopulmonary exercise test (CPET)?

No. This is a non-diagnostic metabolic performance assessment. While it measures many similar physiologic metrics, it is not intended to diagnose heart or lung disease.

Is metabolic testing safe?

RMR testing is non-invasive and safe for most individuals. AMR / VO₂ max testing involves exercise and may require screening or medical clearance depending on health history.

Do wearables provide the same information?

No. Wearables estimate metrics using algorithms. Metabolic testing directly measures oxygen consumption and carbon dioxide production, providing more precise individualized data.

Can I use an HSA or insurance for testing?

Testing is not billed through insurance. HSA funds or out-of-network reimbursement may be applicable depending on your plan.

How often should testing be repeated?

AMR / VO₂ max testing is commonly repeated every 8–12 weeks when actively training. RMR testing may be repeated every 3–6 months or after significant lifestyle or weight changes.

Do you provide nutrition or fitness coaching?

Testing includes a physician’s interpretation of metabolic data. For ongoing nutrition or fitness coaching, referrals may be provided when appropriate.

Can teenagers be tested?

Teens may be eligible depending on maturity, physical ability, and goals. Parent or guardian consent is required.

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VO₂ Max & Advanced Metabolic Testing

Q: What is the difference between RMR and AMR / VO₂ max testing?

RMR measures how many calories your body burns at rest and how it uses fuel without exercise. AMR / VO₂ max testing evaluates how your body responds to increasing physical demand, providing insight into aerobic capacity, training zones, and metabolic efficiency during exercise.

For Longevity and Health

As key predictors of long-term health and lifespan, VO₂ max and advanced metabolic testing provide a deeper understanding of how efficiently your body uses oxygen and energy, offering meaningful insight into cardiovascular fitness, metabolic health, and overall resilience.

This physician-led assessment uses clinical-grade breath analysis to move beyond estimates and wearables, framing your results in the context of real health improvement, not just numbers on a report.

Why VO₂ Max and Metabolic Health Matter for Fitness and Longevity

VO₂ max reflects how efficiently your heart, lungs, muscles, and cells use oxygen to produce energy. It is widely recognized as one of the strongest indicators of overall health, functional capacity, and long-term resilience as we age.

Cardiovascular Health

Strong cardiorespiratory fitness is closely linked to a lower risk of cardiovascular disease, metabolic dysfunction, and premature decline.

Metabolic Efficiency

Your body's efficiency in fuel use influences weight regulation, insulin sensitivity, cholesterol levels, blood pressure, and overall vitality.

Long-term Resilience

Testing helps us understand how well your body is built to meet the demands of everyday life, now and in the years ahead.

Metabolic Testing as a Functional Tool for Chronic Care

Advanced metabolic testing is not about chasing better numbers for their own sake. It is a practical, functional tool that helps us understand why certain health patterns exist and how to address them in a meaningful, sustainable way.

Many common chronic health concerns are closely tied to how efficiently the body uses oxygen and fuel. Insulin resistance, prediabetes, elevated cholesterol, high blood pressure, low energy, and difficulty with weight management often reflect underlying metabolic and cardiorespiratory inefficiencies. These issues may not be obvious on standard labs alone, especially in their early stages.

VO₂ max and metabolic analysis allow us to look deeper at how your body responds at rest and under stress. We can assess your metabolism to see how efficiently you produce energy, how well you transition using fats and carbohydrates for fuel and whether your cardiovascular and respiratory systems are supporting healthy metabolism. This information provides valuable context that helps explain performance plateaus or persistent symptoms.

The insights from metabolic testing help guide appropriate adjustments to nutrition, physical activity, recovery, and, when needed, medical management. Over time, this approach supports real improvements in metabolic health, cardiovascular fitness, and overall resilience, with the goal of improving long-term health and longevity, not just test results.

How We Measure VO₂ Max and Metabolic Health

Advanced metabolic testing is no longer about complex, wire-heavy setups or chasing better numbers for their own sake. It is a practical, user-friendly tool that uses modern, wireless technology to help us understand why certain health patterns exist and how to address them in a meaningful, sustainable way.

Metabolic Testing as a Functional Tool for Chronic Care

Advanced metabolic testing is not about chasing better numbers for their own sake. It is a practical, functional tool that helps us understand why certain health patterns exist and how to address them in a meaningful, sustainable way.

Resting Metabolic Rate (RMR) Testing

Your Resting Metabolic Rate (RMR) is the number of calories your body burns at rest to support essential life functions such as breathing, circulation, cellular repair, and organ function. It represents your true baseline energy needs.

Understanding your RMR provides valuable insight into how your metabolism is functioning and how to support it more effectively. It helps clarify how many calories your body naturally uses each day, whether your metabolism is higher or lower than expected, and how your body utilizes fat versus carbohydrates at rest.

RMR can be influenced by many factors, including muscle mass, dieting history, hormonal balance, stress, sleep quality, age, and genetics.

Your RMR Results Include

Accurate daily caloric needs at rest
Fat versus carbohydrate utilization
Metabolic efficiency indicators
Personalized interpretation and recommendations aligned with your goals

RMR testing is a valuable starting point for individuals focused on improving metabolic health, addressing weight or energy concerns, or establishing a clear nutritional foundation.

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Active Metabolic Rate (AMR) / VO₂ Max Testing

Active Metabolic Rate (AMR) testing, often referred to as VO₂ max testing, evaluates how your body responds to increasing physical demand. This assessment measures maximal oxygen consumption and provides a detailed view of aerobic capacity, cardiorespiratory fitness, and how efficiently your body produces and uses energy during exercise as intensity rises.

The test is performed using a progressive ramp protocol on an airdyne bike (both arms and legs are in use), with intensity increasing gradually until you reach maximal, sustainable effort. We supervise the protocol which is individualized and can be stopped at any point based on comfort, fatigue, or clinical considerations.

From this data, we are able to determine your true VO₂ max, ventilatory thresholds, personalized heart-rate training zones, metabolic flexibility, and overall cardiorespiratory efficiency. The test also provides insight into recovery patterns and physiologic resilience, offering a meaningful snapshot of long-term health and functional capacity.

AMR / VO₂ max testing is particularly valuable for individuals who want precise, objective insight into their fitness and metabolic health, those managing cardiometabolic risk factors, and anyone looking to move beyond generalized recommendations toward a more personalized approach to exercise, nutrition, and longevity-focused care.

What Metabolic & VO₂ Max Testing Measures

Advanced metabolic testing evaluates how your body functions across multiple interconnected systems. Rather than focusing on a single number, this assessment provides a comprehensive physiologic profile that supports more precise, individualized health and longevity planning.

Cardiovascular Health

VO₂ max, reflecting aerobic capacity and overall cardio respiratory fitness
Aerobic and anaerobic thresholds that define sustainable and high-intensity effort
Indicators of how efficiently the heart delivers oxygen during increasing demand

Metabolic Efficiency

Fat and carbohydrate utilization across different intensities
Peak fat oxidation and metabolic flexibility
Energy expenditure at rest and during activity
Insight into weight regulation, insulin sensitivity, and metabolic health

Respiratory Performance

Breathing frequency and breathing pattern efficiency
Ventilatory response to increasing workloads
Measures of how effectively the lungs support oxygen delivery and carbon dioxide removal

Cellular and Mitochondrial Function

Oxygen uptake efficiency at the muscular and cellular level
Aerobic efficiency and anaerobic contribution
Recovery dynamics following exertion

Longevity and Adaptation

Cardiorespiratory biological age
Physiologic resilience and recovery efficiency
Adaptation patterns across training and intensity zones

Together, these measurements provide a detailed snapshot of how your body produces energy, responds to stress, and recovers from exertion. This information allows for more thoughtful, data-informed strategies aimed at improving metabolic health, cardiovascular fitness, and long-term vitality.

How to Prepare for Your Metabolic & VO₂ Max Testing

To ensure the most accurate and meaningful results, a few simple preparation steps are important. These tips help minimize variables that can affect metabolic measurements.

General Preparation (All Tests)

Arrive well hydrated and in comfortable clothing

Try to remain calm before testing, as stress or an elevated heart rate can influence results

Before Your Active Metabolic Rate (AMR / VO₂ Max) Test

Avoid strenuous exercise for 24 hours before testing

Do not consume a large meal 2–3 hours prior to testing

Limit caffeine for 4 hours before the test

Wear athletic clothing appropriate for cycling

Before Your Resting Metabolic Rate (RMR) Test

Avoid high-fat meals within 4 hours of testing

Fast for approximately 4 hours (and no more than 12 hours) before your appointment

No cold plunge or sauna within 4 hours of testing

Water is permitted

Avoid coffee, tea, or any caloric beverages within 4-6 hours of testing

Avoid exercise for 24 hours prior to testing

Avoid alcohol for 12 hours

Following these guidelines helps ensure that your results accurately reflect your true metabolic function and cardiorespiratory capacity, allowing for more reliable interpretation and personalized recommendations.

What to Expect on Test Day

Advanced metabolic testing evaluates how your body functions across multiple interconnected systems. Rather than focusing on a single number, this assessment provides a comprehensive physiologic profile that supports more precise, individualized health and longevity planning.

Active Metabolic Rate (AMR / VO₂ Max) Test

The test lasts approximately 15 minutes
You will sit or recline comfortably while breathing quietly into the metabolic device
It is important to remain still, relaxed, and avoid talking or fidgeting during the test
Measurements are taken while your body is fully at rest to determine the true baseline metabolism

Active Metabolic Rate (AMR / VO₂ Max) Test

The test lasts approximately 15 minutes
You will sit or recline comfortably while breathing quietly into the metabolic device
It is important to remain still, relaxed, and avoid talking or fidgeting during the test
Measurements are taken while your body is fully at rest to determine the true baseline metabolism

Results from your testing are used to generate a detailed metabolic report, which is then interpreted to provide meaningful insight into your metabolic health, cardiorespiratory fitness, and long-term health potential.

Metabolic Testing as a Functional Tool for Chronic Care

Advanced metabolic testing evaluates how your body functions across multiple interconnected systems. Rather than focusing on a single number, this assessment provides a comprehensive physiologic profile that supports more precise, individualized health and longevity planning.

Adults focused on longevity and healthy aging

People with insulin resistance or prediabetes

High cholesterol or blood pressure

Adults focused on longevity and healthy aging

Using data to guide health

Active people wanting personalized guidance

Testing is individualized and guided by clinical context. Not everyone needs both resting and active testing, and recommendations are based on health history, goals, and readiness for exercise. The emphasis is on using accurate physiologic data to support more effective strategies for improving metabolic health, cardiovascular fitness, and overall quality of life.

Safety and Medical Appropriateness of Metabolic & VO₂ Max Testing

Advanced metabolic testing evaluates how your body functions across multiple interconnected systems. Rather than focusing on a single number, this assessment provides a comprehensive physiologic profile that supports more precise, individualized health and longevity planning.

Resting Metabolic Rate (RMR) Testing

Non-invasive and generally safe for nearly all individuals
Measures metabolism at rest without physical exertion
Appropriate for those focused on metabolic health, energy balance, or nutrition planning

Active Metabolic Rate Testing

Involves progressive exercise and may require additional screening
Medical clearance may be recommended for individuals with:
- Unstable heart conditions & high BP
- Acute respiratory illness
- Recent surgery or injury

Scope of Testing

This is a non-diagnostic metabolic performance assessment
It does not diagnose heart or lung disease
It does not replace primary care, specialty care, or urgent medical evaluation
Results are used to support informed lifestyle, fitness, and longevity planning

Safety During Testing

Testing is supervised and protocols are individualized
Effort levels increase gradually
Testing may be stopped at any time based on comfort, fatigue, or clinical considerations

Member and Non-Member Access

Advanced metabolic and VO₂ max testing is available to both members of DeVito Internal Medicine and Pediatrics practice' and individuals who are not current members of the practice.

For patients of the practice, testing may be incorporated into ongoing chronic and preventive care.

For non-members, testing is offered as a standalone assessment with physician interpretation.

All testing is performed using the same clinical-grade equipment, protocols, and medical standards, regardless of membership status.

Metabolic & VO₂ Max Testing Pricing

We believe in clear, transparent pricing for all metabolic testing services. Fees reflect the individualized testing and physician-led interpretation.

Resting Metabolic Rate (RMR)

General Public

Repeat Test

$175

$150

Members

Repeat Test

$125

$100

Active Metabolic Rate (AMR) / VO₂ Max

General Public

Repeat Test

$325

$275

Members

Repeat Test

$225

$200

Active Metabolic Rate (AMR) / VO₂ Max

General Public

$450

Members

$325

Save with our comprehensive testing package

Additional Consultation: 20-30 minute physician consultation available for $50 (same for members/non-members)

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Schedule a VO₂ Max Test in Little Silver, NJ

Advanced metabolic and VO₂ max testing offers a clear, objective look at how your body uses oxygen and energy, information that can help guide smarter decisions around health, fitness, and long-term longevity.

Whether you are focused on improving metabolic health, addressing cardiometabolic risk factors, or gaining precise insight to support an active lifestyle, physician-led metabolic testing provides actionable data on your personal health and fitness.