rockdude wrote:
There is always a different definition of FTP, now FTP is MLSS.
FTP is, was, and always will be a functional (i.e., power-based) measurement of the maximal metabolic steady state intensity. As such, you should think of it as an "umbrella" over various physiological markers of the same intensity, e.g., MLSS, IAT, the NIRS breakpoint, VT2, the iEMG threshold, etc.
(If this is news to anyone, then they simply haven't been paying close enough attention...for example, here is what I wrote when I introduced the concept back in 2001:
"...while LT is often defined by sports scientists as the initial non-linear increase in
lactate with increasing exercise intensity (Fig. 2), this intensity tends to be significantly below
that which coaches and athletes tend to associate, on the basis of practical experience, with the
concept of a “threshold” exercise intensity. The latter corresponds more closely to what the
sports science community has termed OBLA (onset of blood lactate accumulation, defined as a
blood lactate concentration of 4 mmol/L), but is really conceptually closest to MLSS (maximal
lactate steady state) or IAT (individual anaerobic threshold), both of which represent the highest
exercise intensity that can be maintained without a continual increase in blood lactate.
...probably the easiest and most
direct way of estimating a rider’s functional threshold power is therefore to simply measure their
average power during a ~40 km (50-70 min) TT.")
rockdude wrote:
I don't think there is any research that show that the new FTP test protocol results in ones MLSS. I feel the fact that mFTP has to be feed long efforts to be anywhere accurate is the driver for the new protocol.
The data during the first ~25 min actually have the greatest impact on mFTP.