Lactate Clearance
120 min
Medium intensity
Improve lactate clearance during sustained efforts: four ten-minute blocks at 85-90% of CP with five minutes' recovery, for endurance events and long climbs.
Ulisses Nunes Abbud
Coach
Lactate Clearance
120 min
Medium
6 / 10
Beginner
Indoors
The session
The workout
Written as a share of critical power, so it fits every rider. In Vekta it becomes your watts, with the W′ cost shown before you ride.
Ulisses Nunes Abbud
Why this workout
The breakdown
Inside the workout
Improve the body's ability to clear lactate during sustained efforts. Ulisses Nunes Abbud wrote it for riders focused on endurance events and long climbs, and it works by sitting just under threshold long enough to produce lactate and then flushing it at an easy pace.
Four ten-minute blocks at 85–90% of CP with five minutes at 60% between them: forty minutes of high sweet spot in two hours. It is deliberately not an over-under; the recovery is a real recovery, so the blocks stay clean and the fatigue stays moderate.
Written against CP in Vekta, with the zones tab afterwards showing the forty minutes at 85–90% and heart-rate drift across the four blocks, which is the fatigue-resistance signal this session builds.
A base or build session, once or twice a week, indoors or out. One of the friendlier sessions in the library for a rider new to structure.
Lactate Clearance
Stimulus
Beginner
Workout level
Indoors
Best ridden
Road,
DISCIPLINE
The stimulus
Lactate Clearance, explained
Surge above threshold, settle just under it, and teach the body to clear the cost.
What it is
Over-under and variable-pace intervals that alternate short surges above critical power with longer segments just below it. The "under" is not recovery; it is the working part, where lactate produced in the surge is used as fuel while still riding hard.
Why it matters
Races are not steady. The ability to absorb an attack, a short climb or a crosswind surge and return to a hard pace without blowing is what separates finishing in the group from being dropped. This is the trainable version of that ability.
The surges should feel manageable and the "unders" should feel like the real work. If you are recovering during the under, it is too easy; if you cannot finish the set, the surge is too hard or too long.
These sessions map directly onto race demands and are the best way to expose whether an athlete's W′ recovers under load. The W′ balance trace after the session shows the pattern clearly: it should dip on each surge and partially recover through the under.
The session's surges and unders are written in % of CP and personalised in Vekta. The W′ preview shows whether the athlete can complete the set as written; the post-ride analysis names each surge and the recovery between them.
Free for coaches. Test with your whole roster during the trial.