Metabolic Testing – Now Available!

The evolution of training is such a fast moving topic the last few years its fun to watch. Smarter software analysis tools keep arriving to help coaches and athletes see a more comprehensive view of their training and, increasingly, individualized physiology. One of the smarter and more interesting, to me at least, programs comes from INSCYD. They have a testing protocol and some serious computational back end heft to support in depth analysis via models for things like lactate clearing curves, optimal recovery power, as well as physiological profiles expected from power based training.

Among their development partners has been Bora Hansgroh, home of World Champion Peter Sagan, and a few others.
Their goal was to create an accurate map of the physiological systems based on a couple of notable variations in the data collection protocol and a proprietary algorithm that they say tests above 95% for accuracy vs lab testing and invasive protocols. This is really inventive stuff in that it allows for a complex and comprehensive profile of you as an athlete via non-invasive, power based testing!

I’m pretty happy to be working with these guys as I think they bring a new approach that fits nicely with the research. To that end I’m doing a start up special on the testing package for $150.00. Normally it’s $225.00.

There are 10 spots a day available at this rate thru Feb 4th. I’d be so pleased if you shared this information with those you think might find it worth doing.


or share the link:

Here is a partial sample of the data sets:

And some insight from the report:

“All graphs above visualize important endurance metrics, in steady state condition, in relation to the intensity (power or speed).The upper left graph shows the metabolic demand and oxygen uptake (in steady state). The oxygen demand (also named VO2tot – dark blue curve) increases with the intensity (speed or power). The oxygen demand is similar to the energy demand needed at a certain intensity. However it is converted into ml/min/kg of oxygen instead of using kJ or a similar unit of energy. Therefore the increment of oxygen demand in relation to the intensity shows the efficiency. The light blue curve shows the actual oxygen uptake (VO2) in steady state conditions. The unit is ml/min/kg – oxygen normalized to the body weight. As can be seen, at lower intensities, the actual oxygen uptake almost matches the oxygen demand, thus the needed amount of energy is almost completely covered by aerobic metabolism.At higher intensities however, a gap is opening up and the oxygen uptake cannot match the demand. This gap is shown as the light blue area, and shows the amount of energy (or more precisely oxygen) which needs to be covered by glycolytic metabolism. The lower left graph shows: Gross lactate clearance rate (blue), the lactate production rate (red) and the lactate concentration (yellow).During exercise lactate is be cleared from the muscle cell by aerobic metabolism (oxidation). Simplified, lactate gets burned and acts as a fuel in the aerobic metabolism. Therefore, the rate at which lactate can be cleared is directly related to the actual oxygen uptake. You will notice that the shape of the blue lactate clearance curve looks similar to the oxygen uptake curve above.The red curve shows the actual lactate production. As lactate clearance, the unit here is mmol/l/min. Look for the crossing point of the lactate production (red) and the lactate combustion (blue) – this is intensity of anaerobic threshold. At any intensity below, it can be seen the possible combustion of lactate is higher then the actual production. At any intensity above this crossing point, the lactate production rate is higher then the possible combustion rate, which results in an accumulation of lactate.The yellow line shows the lactate concentration in steady state conditions – this is a result of the production and clearance rates described above. Steady state means that time is infinite, and therefore shows the concentration that lactate concentration (in mmol/l) would reach. At anaerobic threshold – also known as maximum lactate steady state, the curve increase to infinite as no steady state can be reached anymore. The top right graph shows the lack of pyruvate (or lactate, grey line) and the actual lactate accumulation (purple). If you look back to the lactate production and lactate combustion, you can identify the gap between both at intensities below anaerobic threshold (below the crossing point of both). The gap between gross production and gross clearance is the lack of pyruvate. Or in other words: the amount of lactate that could be cleared additionally to the gross production. Lack of pyruvate curve is shown in mmol/l/min of lactate clearance. It shows the ability to recover from lactate accumulation in relation to the intensity (speed or power). At anaerobic threshold it runs to zero – the aerobic metabolism is saturated with lactate and no additional lactate can be combusted.The purple curve shows the rate of lactate accumulation. This occurs at intensities higher than anaerobic threshold. The steeper the curve, faster lactate accumulation at any given intensity.”



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