Today did a workout - 10x1000. The workout was on asphalt - my hypothesis is that running on concrete has been aggravating whatever problem I've been having with the lower back/left quad. In one direction there was a headwind - the other direction had some uphill. I started out in 2:59 - then did 3:00, then I had a quad spasm about 600m into the third interval. At that point, I was worried that I would be unable to finish the workout. Before giving up, I tried increasing the rest between intervals from 200m to 400-600m, and it worked. I ended up running around 3:02-3:03 for the next 5 intervals. The last two were faster - 3:00 and 2:57.
This has been my first decent workout since the Thanksgiving race.
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