Hi
gregclimbs said:2x20 is NOT SST... SST is 60-90mins @ upper L3 to lower L4 range...
g
I don't want to get into a protracted argument over this as we all have our own reasons for doing things in different ways but I fundamentally disagree with you in spite of your use of extra capitals to emphasise your point. I'll explain why I do not agree with you.
It is well known that SST is a definition of training intensity which is generally felt to lie at or about 88-94% of FTP. As a definition of intensity it is completely independent of the length of an effort or the number of efforts. Sweet Spot Training could therefore involve intervals of any length that anyone wished to use, it is a purely personal matter. Similarly L5 intervals may be 4 minutes long when performed by one person and 7 by another, they are still L5 intervals.
In terms of the number and length of efforts, even though personal, I believe that the 2x20 approach is a reasonable one, certainly for someone of my modest abilities, and is based on what I believe to be sound advice.
I believe that the excellent book "Training and Racing with a Power Meter" by Hunter Allen and Andrew Coggan is generally accepted as a good guide to training with power. The section covering SST describes a typical SST workout for a rider who is a Cat III racer who has an FTP of 290W, I'll not retype the whole thing but here is an extract covering the key section of the workout, after the warmup:
"He would then do 2 efforts of 20 minutes each with his watts at a range of 255-272 (88-94% of threshold power). It is critical for him to stay in this range as best he can..."
This to me is clear guidance from an extremely reputable source suggesting exactly the workout I do, it is a 2x20, unless I've missed something.
As a rider becomes fitter and stronger he or she may wish to do more of these intervals but the advice in the book I refer to suggests that an average Cat III racer should not need to do more than 2x20 minute efforts, this may of course not apply to you but does apply to many.
So, that's my position and how I have arrived at it and I'm satisfied with the sources of information and guidance I have used. I think the statement you made is entirely fallacious and potentially very misleading, I would be interested to know which reference material you are using when arriving at your definitions.
Regards.
PBUK