@robronbomb: I just can’t figure it out. How does everyone else do it? #zone2 #garmin #runner #hyroxathlete #endurancetraining

afloridagyng :

honestly dude, this just happened to me. Wasn’t from strength training or anything like that but i hit 28 miles in 4 days and 3/4 were basically at threshold with some unexpected things that came up. i went on a recovery run that 5th day and my heart rate jumped to mid zone 3 by the team i stood up from lacing my kicks. Took two straight days off, ran an easy 3 mile run, took another day off and got back to it and felt like a million bucks. i think it was just acute fatigue. sounds similar to this, just different cause.