Could be many things, you'll have to wait until you do more L5 intervals (Only one workout is not a lot).whoawhoa said:My theory was perhaps that my FT has rissen so high relative to my threshold that I'm not producing much acidosis during a 5 minute interval? Which had me thinking that I may need a block of v02max work if I am to continue raising threshold.
But on the principle, I am with you.
In fact, myself, I have never experimented that, except in the pool as a swimmer.
But I have often seen athletes lacking speed at one point in their season (especially in running). And it comes naturally, very easily.
Again, your story sounds like good news to me.