That was “fun”. Finally stopped raining, and there are predictable results.
2 sets of 4x10sec at 250% FTP (500w) with 20sec rests during sets, 2:20 rests between sets. Blood lactate went from 1.7 to 3.8, breathing through my nose, no difficulty. Delta 2.1 mmol/L. Didn’t measure after first set, but yes, moderately glycolytic.
1 sets of 4x10sec max sprints, 20sec rests. Issues with shifting on this to keep the cadence in the normal range. 10sec avg went from 1500 on the first one to 900 on the last one. Lactate went from 2.0 to 18.2mmol/L, delta 16.2. Whoever said 10 seconds is too short to make it hurt can’t call 1900w peak a not good sprint. This is actually the most lactate I’ve seen myself have for 40 seconds of work.
I’d normally go into a long winded explanation of this, but anyone want to take a stab at what’s happening here, if 10 seconds is, in theory, not long enough to be glycolytic?