Did this 70 minute run yesterday, trying to keep flat parts HR at or below 140, and max 145 during the uphill segments. Need to figure out how to get those long runs in while still being able to get in a quality workout the next day. HR is higher this week for these paces than as a few weeks ago, but there were a few very high calorie days prior to those long runs and was a bit colder out. Been a mild December and so far January.
Up later today I’ll be doing some some Wingates and testing lactate in a university lab.