Metabolic performance testing reveals the physiological drivers behind training adaptation and race performance, three reasons why the best coaches integrate it systematically rather than relying on field estimates alone.

Are you looking for a way to boost your performance as a coach or athlete? Then you need to consider performance testing. In this article, we’ll cover the top 3 reasons why the best coaches use metabolic testing, whether you’re working with a professional or amateur athlete.

Before we dive into the benefits of performance testing, let’s first define what it is. Performance testing is a way to measure how your body performs during exercise. A good performance test does not only look at your maximal capabilities, like VO2max, it also looks at how your body performs during sub-maximal efforts.
The list of performance tests is endless. Here are some examples:
In this article we’re going to focus on the gold standard test for “endurance sports” (everything from a 5×3 minute kickbox match, to a 2×45 minutes football match to a 15 hours Ironman Triathlon). This gold standard test is called a metabolic test.
“The more we can understand how an athlete does what they are capable of doing, the better we can focus on what they need to do to get better.”
A metabolic test is like a look under the hood of an athlete’s engine. It provides detailed insights of how your body works during sub-maximal and maximal efforts.
A metabolic test is different from all other tests, because it gives you information about:

Although this information is interesting in itself, the real benefit is that it’s easy to put these test results into action during daily training and racing. More about the practical benefit of metabolic testing in a bit, but first:
Yes, all professional athletes do metabolic tests to gain another 2-3% in their performance. But metabolic testing benefits all athletes who want evidence-based recommendations on how to become a better athlete in the most effective way.
“INSCYD helps us to map the physical capabilities of our riders and to apply targeted training accents in the individually optimized training schedules”
This includes athletes ranging from a dedicated age grouper to a time restricted athlete who doesn’t want to waste precious time on ineffective training.
Metabolic testing used to be a time-consuming combination of several tests in a lab. For example: a VO2max ramp test using an oxygen mask, a lactate threshold test using lactate samples, a VLamax test using an all-out sprint protocol, a body composition analysis using a DEXA scan, etc.
But…
The INSCYD software removes these time-consuming barriers.
“INSCYD enables us to take real-world data from testing & training and turn it into measurements which paint a picture you’d often be able to obtain only through specific lab tests. This saves us time and effort, and refines the quality of our job.”
The INSCYD software enables you to collect all metabolic data in one test. The coach, lab or athlete can choose the test protocol: from power-only (cycling) or GPS-only (running) tests to lactate field tests to lab tests with VO2.
Learn more about the test (protocol) via: INSCYD test: protocol, results, costs and more.
With metabolic testing and the guidance of the INSCYD team, you can unlock the full potential of your athlete’s performance! A metabolic test can provide precise information that can be utilized to develop evidence-based training that is targeted to your athlete’s specific needs.
Coaches and labs can schedule a consultation with the INSCYD team now to learn more about how metabolic testing may help you maximize your athletes’ performance and take training to the next level. And athletes can find an INSCYD coach or lab to perform a test. Contact INSCYD today.

Let’s look at the importance of performance testing in athletic training. Here are 3 reasons why every coach should use performance tests.
Let’s try to understand the importance of knowing your athlete’s metabolic profile before starting a training program, by looking at two analogies:
When you go to a doctor, you expect a detailed doctor’s examination, before you get a diagnosis and medical treatment.
When you bring your car to the garage, you expect them to first find out what’s wrong, before they start replacing components.
But what do you do when an athlete comes to you with a problem or challenging goal? Do you take the time to really understand their physiology? Or do you do a 20-minute test and start creating a program?
We believe coaches can boost their athlete’s performance, by first analyzing the metabolic profile, before creating a training plan. INSCYD is the only tool that can give you the necessary in-depth understanding of the metabolic profile of your athlete.
“Thanks to INSCYD, my trainer and I always know where I currently stand and where I can improve my performance.”
Once you know your athlete’s goal and metabolic profile, it becomes much easier to understand what needs to be improved during training. Moreover, you need a metabolic profile to get highly individual training zones to create a training program anyway.
In addition to understanding the importance of knowing an athlete’s metabolic profile, it’s worth noting the benefits of using the INSCYD tool – Training Zone Builder. With this information, coaches can create personal training zones based on master metrics and see exactly what (will) happen in the athlete’s body when exercising in that training zone.
Tracking progress sounds like a no-brainer, but it’s only effective when done correctly.
If your athlete’s goal is to run a marathon, you can not track progress with a 5k test, or with a beep test, or with a sportswatch estimated VO2max test. Why not? Simply because none of these test results will be the limiting factor during a marathon.
The same is true for using a FTP test in cycling for an athlete who’s preparing for a cyclosportive.
A metabolic test enables you to see exactly what needs to be improved and tracked over time. In many endurance events, this goal could be to decrease carbohydrate combustion at a certain intensity. Or to increase the fat combustion.
The INSCYD report will show you whether that is the case for your athlete. And whether that should be done via increasing VO2max or decreasing VLamax, for instance.
“INSCYD is like a compass that guides us in the dark.”
Too many coaches and athletes miss out on this opportunity.
They do a performance test in the beginning of the season and maybe repeat the test somewhere halfway through the preparation.
But one of the biggest benefits of performance testing is that it helps with race pace and race nutrition planning. This does require a test close to race day, but the value you get from it is enormous.
For instance: if your athlete is performing in a short to middle-distance race (up to ~1 hour), the lactate accumulation graph of INSCYD shows exactly what the highest sustainable pace/power is.

If your athlete is performing in a long-distance race, the carbohydrate combustion graph of INSCYD shows exactly what the highest sustainable pace/power is AND how much carbs your athlete needs to consume.

So don’t miss out on the opportunity to use a metabolic test to plan a race in detail. After all, you don’t want all the hard work to be useless, simply because your athlete started too fast or didn’t eat enough.
We also recommend watching the webinar to learn more: How to utilize metabolic assessment for better coaching.
With a metabolic test, you can gain detailed insights into how your athlete’s body works during sub-maximal and maximal efforts, including information about oxygen consumption, lactate dynamics, anaerobic threshold, and substrate utilization. This information can be used to create evidence-based training recommendations that are tailored to athletes’ individual needs, helping them to unlock their full potential.
By now you start to understand the importance of performance testing, in theory. But you only experience the real benefit when implementing it. With the INSCYD software, you can collect all the metabolic data in one test, saving time and effort while refining the quality of your coaching.
Coaches and labs can schedule a free consultation with the INSCYD team today to learn more about how metabolic testing can help you optimize your athletes’ performance and take training to the next level.
And athletes can find an INSCYD coach or lab and schedule a metabolic test.
