Are Over-unders Threshold workouts really, or rather VO2max?

[Brennus]

@Jose_Manuel there is nothing special about over/unders. If you want VO2max work then targeted VO2max workouts are more effective. If you want threshold work then targeted threshold work is more effective. Maybe the one thing over/unders deliver is to brain train yourself to be used to that level of effort.

Here is a great podcast regarding over/unders by @empiricalcycling

Watts Doc #43: Over-Unders Are Not Special

If you want some info on extended VO2max intervals, see my post regarding the ‘Anatomy of a 15 minute vo2max interval’ based on some of Veronique Billat’s work:

Anatomy of the 15 minute VO2max interval

Interesting stuff from what many would consider the creator of 30/30. I always say the most efficient way to accumulate minutes at VO2max is a hard start VO2max interval where you manually dial back power to maintain VO2max. Here’s part of the data that gives me that idea. Presenting the 15 minute VO2max interval: [image] There are two VO2max intervals on this chart. The light gray data points are what I’m talking about. Boxes are VO2 data & diamonds are power data. pLT is lactate thresh…