Vo2 session - shorter or longer intervals for best adaptation

[mcneese.chad]

This subject has been covered in at least a few existing topics. Here is the first one that seems worth a look.

• VO2Max, 30/15 or Classic 3-8m

I am likely to merge this new post into that one or another that relates vs having another separate topic on the some subject.

ETA:

• VO2 Max: Short vs Long Intervals
• VO2 Max should feel harder than this