Johaug, Weng and Teammates’ Physiology, Training Described in New Paper (Fasterskier.com)

Seems like mostly foregone conclusions to me - train more and you’ll get faster. It is interesting to see that the top skiers trained more by running, and more at low intensities! Of course, this doesn’t help the everyday endurance athlete who may not have a whole lot of time to increase the training volume, but it does make me feel better about spending my off-skiing-season mostly running and avoiding the rollerskis! I will take to heart that the top skiers also trained more on skis by skating - my less favorite technique, but the technique which may provide the most fitness gains for a given amount of time.