Mikeagv wrote:
Yes i need to narrow that gap so i can focus again on fast paces and vo2 stuff.
That workout wasn't to identify LT2, it was a short lt workout measuring lactate.
Didnt know that about lactatepro2.. i thought it was one of the best in the market
That's not a comment on it's quality, just that it outputs differently. For example, if you were going to do a workout based on lactate values and, using a Lactate Pro 2, identified that range to be 2.0-2.5, on a Lactate Plus you'd aim for 1.5-2.0, even though the pace to generate those values is the same.
Regarding lexel and LT1, what he could just say is that you want to establish lactate data points over a range of progressively faster paces (the outlined treadmill protocol) and use particular "turn points" in that data as approximate boundaries for your LT1 and LT2. LT2 can be ambiguous for some, but LT1 should be easily discernible.
Assuming you start slow enough, the first several samples in a step test should return approximately the same lactate value (say ~1.0 mmol/l). There will come a point where your lactate reading increases (could be 1.5, 2.0, ...) and will stay elevated and continue to rise. That first increase in lactate above your established baseline is what is referred to as LT1.
You may want to be conservative and start the treadmill at 11 kph or even 10 kph, just to make sure you establish a good baseline and identify LT1, since that seems the main objective for your step test.