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Joe has been offering Metabolic testing for over 10 years.  We currently have university and industry connections to provide you with the best metabolic and performance testing available.  


Metabolic testing allows us to find your optimal training zones and monitor training adaptations as you progress through a training program. Endurance Company currently offers a comprehensive metabolic assessment consisting of: Resting Metabolic Rate, Body Composition Analysis, VO2max Testing, Lactate Testing, Performance Economy Testing, and Sub-Max Testing.  From these tests, you will learn your Resting Metabolic Rate, Body Composition (body fat percentage, BMI, height, weight, waist and hip circumference), VO2max, velocity at VO2max, lactate Threshold, Economy at varying intensities, and the intensity where you burn the most fat.  Along with these data, you get a one-time consultation with Joe where he gives you a detailed breakdown of your training zones as well as a detailed explanation on how to use the data in your training program.


Metabolic testing gives a very accurate snapshot of your current fitness.  Results from a metabolic test can help determine your resting metabolic rate, fuel usage at varying intensities, and training zones.  One of the greatest values from the metabolic tests is the accurate prescription of your training zones.  

The Complete Metabolic Testing options include the following:   

  • 1)  Resting Metabolic Rate Test
  • 2)  Body Composition Analysis 
  • 3)  VO2max Test
  • 4)  Lactate Test
  • 5)  Economy Test (sub-max)

Resting Metabolic Rate Test

This test measures the amount of calories you burn at rest and what percent of these calories come from fat and carbohydrate.   This is a useful test in determining daily energy needs and helping with weight management.  You will sit quietly for 10-15 minutes while breathing through a mask which is attached to the metabolic analyzer.

Body Composition Analysis

Body composition will be measured by two methods: 1) skin folds – various sites on your body will be lightly pinched and measured.  The results are plugged into an equation to provide an estimation of your body fat.  2)  Bioelectric Impedance Analysis (BIA) – four electrodes are placed on the hands and feet.  The device sends a electrical current throughout the body (you cannot feel this electric current!).  Data from this test will be plugged into an equation which provides an accurate estimation of body composition.  In addition to these two methods, height, weight, waist circumference, and hip circumference will be measured.   You will receive your current body fat percentage as well as your height, weight, and Body Mass Index (BMI), and waist and hip circumference.  All of these measurements are useful in overall health and for tracking body composition and training changes.

VO2max Test

VO2max, or VO2peak is considered one of the most important measurements in fitness and performance.  The VO2max tests measures the amount of oxygen you consume at your maximum workload.  This test is performed either on a treadmill (for running VO2max) or on a rear wheel bicycle ergometer (for biking VO2max).  Note that your running VO2max and biking VO2max will likely be different (running VO2max is normally higher).  Often these variables are called the VO2peak when we talk about different modalities (bike versus run). 

Throughout the test, you will breathe through a mask that is connected to the metabolic analyzer.  The test begins at a relatively low intensity.  The intensity is incrementally increased so that you reach your maximum workload in about 6-9 minutes.  The test is stopped when I determine you have reached your VO2max, but often the athlete likes to continue running/biking until they are unable to continue.  The results of this test provide you with your current VO2max in absolute terms (liters ofO2 per minute [L/min]) and in relative terms (milliliters of O2 per kilogram per minute [ml/kg/min]) as well as velocity at VO2max (vVO2max). 

Lactate Test (CRA Test)

Lactate is a byproduct of glucose metabolism.  We constantly produce lactate, even at rest.  At sub-threshold levels, we are able to metabolize or ‘clear’ lactate as it is produced, thus keeping the blood lactate levels at a steady sub-threshold level.  Once we begin to produce lactate at a rate faster than we can clear it, blood lactate levels begin to rise.  A common misconception is that lactate causes the burn we experience as we surpass our threshold, but lactate itself is not harmful and is actually a good energy source for the heart and muscle!  Blood lactate is a measure of our ability to metabolize glucose and provides a good way of determining when we rely on predominately anaerobic metabolism.   Lactate threshold occurs anywhere from 70% up to almost 90% of your VO2max.  Typically, the more trained the athlete, the lactate threshold will occur at a higher percentage of the VO2max.

This test is performed on either the treadmill (for running) or on a rear-wheel bicycle ergometer (for biking). The intensity is increased in 3- to 4-minute stages.  Near the end of each  stage, data is collected: pace/speed, power (if on the bike), heart rate, perceived exertion, and blood lactate.  Blood lactate is collected via needle prick on the tip of your finger.  A drop of blood is placed on the lactate analyzer to provide a measure of blood lactate.  You continue through 4-minute stages until appropriate blood lactate numbers are reached.  It is not necessary to go to maximum effort during this test.

The value of this test is in the interpretation and implementation of the data.  A skilled physiologist can analyze the data and determine paces/speeds/intensities that elicit an important physiological change.  Data from this lactate test is used to prescribe training intensities (or training zones).  The benefit of knowing these training zones is that it allows you, the athlete, to train at specific intensities to optimize your training potential.  In other words, you will know the correct intensity to train to have the best chance of getting the desired outcome.

Economy Test (Sub-max)

Economy is a measure of the amount of O2 you consume for a given workload.  This is especially helpful for endurance athletes who wish to know their economy at race pace (i.e. marathon pace or ironman bike pace). This test provides a snapshot of your current economy (amount of O2 at a given speed or O2 needed to reach a given speed) and allows follow-up testing to measure economy improvements.  For example, during your initial test, you may require 1800 ml of O2 to run at a 9:00 mile.  After a couple of months of training, you may only require 1700 ml of O2 to run a 9:00 mile.  This shows improved economy: you are running the same speed at less O2 requirement.  The Economy Test is performed at the same time as the Lactate Test.  Data we gather from during the Lactate Test is used to determine your economy.

What do you get?

You can choose to participate in the Comprehensive Metabolic testing (all five tests), OR you can choose any one of the five tests offered.  The Comprehensive Metabolic Testing provides detailed information so you will know your Resting Metabolic Rate, Body Composition (body fat percentage, BMI, height, weight, waist and hip circumference), VO2max, velocity at VO2max (vVO2max), Lactate Threshold, Economy at varying intensities, and maximum fat burning intensity.  Along with these data, you will have a one-time consultation meeting with Joe where you receive a detailed breakdown of your training zones as well as detailed explanation on using these zones in your training.  

How does it work?

ECo’s Comprehensive Metabolic testing involves five evaluations during two lab visits.  Ideally, the visits would be on back-to-back days, or within the same week.  Tests will be performed either on a treadmill (for running data) or on your bicycle placed on a rear wheel ergometer (for bike data).  Your resting metabolic rate, VO2max, and body composition will be evaluated on the first visit, while your lactate threshold, economy, and fat max will be evaluated on the second visit.  Each visit will take approximately one hour.  All tests will be administered and analyzed by Joe Company, an Exercise Physiologist with extensive experience analyzing and interpreting metabolic data.  If you choose to participate in a single test, we will meet one time to perform the test of your choice.  Within a week of the testing, we will meet to discuss the test results and how to apply this data into your training program.  

What does it cost?

Contact us for pricing for the tests.  Pricing depends on your location and testing choices.