Program : 16 laps of lane 7 in 2 sets of 8 laps. 3 - 5 minutes rest between sets.
Heart Rate gradually to 120 -122 (81-82%)and stay there! Time each 4 laps.
Yesterday I had an awful 14km run trying to keep HR at 113. Today I had no trouble at all in running at 120-122! In fact, it was so comfortable that I'd call it a fairly easy session! Please explain!
After a few drills & Strides & watching for the approaching storm...that didn't come:
Set 1. First 4 laps in 10:58; Second 4 laps in 11:12. AHR = 121.
Set 2. First 4 laps in 11:03; Second 4 laps in 11:16. AHR = 121.
Total 6.4km.
My attempt at an explanation:
ReplyDeleteYou were obviously feeling better/more rested/alert. This wasn't supposed to be a 'hard session', just an easier 'upper aerobic' session. 81-82% is still an easy HR compared to even half marathon race pace.
Added to this, the distances were short - two lots of 3.2km - 21 to 22 minutes each. Yesterday's run was one lot of 14km, and not flat like the track at Chev.
As Steve L could tell you, the long 'upper aerobic' runs would be the only hard sessions. 'Long' would be 60 to 90 minutes at 80-83%. Best to gradually build up the distance of these. 60 minutes in lane 7 wouldn't be that easy!
No explanations from me, LLs. I cannot work out this running caper at all, at times. I just know that some days we will be in the groove, while on other days we are griding the gears.
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