I’m trying to track down this little bit of information in some article that has appeared within, like, the last year. Something about how long-distance, low intensity only improves VO2 max through one mechanism, and sprints improve it via another mechanism. Of course, a lot of endurance athletes rarely sprint so their VO2 max isn’t what it could be, and no amount of long-distance running will help.
Anybody remember reading something like this? I couldn’t find it through the Search.