Sky Endurance

Metabolic testing for endurance athletes

About Us

We perform metabolic tests for triathletes and endurance athletes.

Metabolic testing for triathletes and endurance athletes

Metabolic testing helps determine your pacing strategy and your nutrition needs for endurance racing such long distance triathlons, cycling or ultra running.

During the test, we measure heart rate, power (on a bike), and the amount of O2 and CO2 expired. From this, we can determine your VO2Max, aerobic and anaerobic thresholds, and training zones.

Using custom software, we can also determine the amount of fat and carbohydrates burned at each effort.

The generated report contains a lot of information that are interesting in themselves, or to track over time. For example, are you training effectively to becoming a better fat burner?

It can also help you decide on a pacing strategy by answering questions like:

  • What is the difference in carbohydrate utilization at 210 Watts vs 220 Watts?
  • How many carbohydrates do I need to take to complete the race at this effort?

Finally, if you have a race setup in Best Bike Split, we can include it in the report, calculating how many calories you will need to complete it!

You can see a sample report here. After the test, the report is generated and we discuss what each table and chart in the report tells you.

Testing protocols

We can discuss any protocol you would like to follow, but here are two suggestions:

  • Start at a comfortable/easy effort, and increase the resistance every minute. This helps identify your VO2Max, and determine your zones.
  • Do 5*5 minute intervals at different intensities. Usually, this would be done at intensities “around” your planned race effort, and can help you fine tune your race plan.

Resting Metabolic Rate

We can also perform a Resting Metabolic Rate, which tells you how many calories you are burning at rest. It can be useful to plan your daily nutrition for weight loss for example. Or just out of curiosity.

Book a test

What you need

Currently, only a cycling test is available. You will need your bike, preferably equiped with a power meter if you would like to have your power threshold and zones in the report.

Tests are available during the weekend, in Saratoga, CA.

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  • One protocol: $330 - Testing takes about 1.5 to 2h.
  • Two protocols back to back: $400. This lets you test your thresholds first, determine your zones, then get back on the bike and test more precisely at selected effort levels.
  • Resting Metabolic Rate: $60. This is only offered with a metabolic test above, and takes an extra 40 minutes.

TriForce Triathlon Team members receive a discount. Talk to your coach!

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