Originally Posted by terrymorse

Yeah, some people call that the "zone 2 trap". It feels so pleasant that people want to do it all the time, so they get stuck in that slow plateau.

I think of zone 2 in a similar way, as a recovery ride pace. If I'm feeling fatigued from the prior day(s), but not so fatigued that I need a rest day, it's time for an easy zone 2 cruiser. But the notion that you must stay in zone 2 for the whole ride or you'll undo the zone 2 "benefit", or flip some metabolic switch, seems just plain goofy.

Pootling along at zone 2 for hours is boring. My favorite type of ride is plenty of zone 2 cruising, broken up by some harder efforts lasting 1 to 10 minutes. Mixing up the pace keeps things interesting, I'm getting a more well rounded workout, and I don't get so thashed that I can't go again the next day.