Threshold work sits near the upper end of sustainable aerobic power. It matters because many cycling goals depend on riding hard for a meaningful duration rather than producing only short spikes.
For time trials, long climbs, and sustained race efforts, threshold workouts help bridge the gap between comfortable aerobic riding and maximal high-intensity work.
What threshold work develops
Threshold intervals help riders tolerate and sustain hard, controlled efforts close to FTP. They build useful power for situations where pacing and repeatability matter more than explosive acceleration.
That makes them especially relevant for time-trial riders, climbers, and anyone trying to improve the quality of longer hard efforts.
How threshold differs from sweet spot and VO2
Sweet spot usually sits a little lower and is easier to absorb at higher volume. VO2 sits higher and is more costly. Threshold work occupies the demanding middle ground where the rider needs both control and real commitment.
That is why threshold sessions often become a cornerstone of structured plans but should not dominate every hard day.
Using threshold workouts in VeloWorkout
Threshold sessions are easiest to manage when they are built with clean active blocks and realistic recoveries. They also benefit from clear placement in the plan calendar so they are not stacked against every other demanding session.
If you want a rider to improve sustainable power, threshold work is often the most direct tool, but only when the week around it still makes sense.