AM: 10.2 miles on the treadmill, averaged 7:54. HR 152.
10'-6'-10'
I was supposed to do another 6' interval but I got 1' in and called it. Just lost concentration and confidence. Maybe could have started a little slower, but even with a lot of treadmill running lately anything faster than steady aerobic to marathon effort is a bit hard to dial in. I should have known to start at 9.0 and work my way down. That would have been doable and just about right. 10' intervals were at 9.3 and the 6' was at 9.4. I didn't take laps for the intervals so I don't have an exact HR but it was getting to around 177-180 BPM on the last one. Sometimes I can grind at that effort, other times I just cannot hold the concentration (usually not a legs or lungs problem).
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