Help interpreting Respiratory Exchange Ratio

[DaveWh]

I think you’ve gotten the right directional interpretation. Although it does seem odd that your Submax uses more carbs than your VO2max test. I think to accurately interpret the data, you probably need to do a few things:

1. Ask the lab where you got the testing if the measurement methodology was designed specifically to yield reliable RER data.

2. Bring the results to an exercise physiologist for them to review. They will be able to tell you if your results are typical/atypical, and shed further light on how much you could rely on the data, and what it means.

Here’s a couple of posts on this topic:

A few questions about fasting rides (fasted training)

I agree. All that sugar over 20+ years riding is not good! As usual, there’s a big middle area between sugar all the time, and full Keto. You can absolutely become less reliant on sugar without going full Keto/fully “fat adapted”. The link in one of the posts above offers suggestions. http://www.mysportscience.com/single-post/2015/07/13/6-Ways-to-trainlow Yes - or at least, fat vs carb use during exercise can be measured. The standard way is through an RER test. I’ve seen some people post r…

Solid base vs unstructured training - case study with results

I promised in another topic to do some analysis based on the results of respiratory gas analysis during a ramp test I’m doing as a part of my annual health check. The sports testing center I’m doing my checks is kind enough to provide me all the raw data, so I was able to nerd out a bit and reach some interesting conclusions. Both tests were done at the same lab, using the same equipment - all the data, including power comes from the same source. Based on the VO2 and VCO2 volume, I was able to…