~7 miles @ ~11 min/mi
A meteor, maybe an early Perseid, streaks overhead. A pair of dog-like shapes move off the track and watch me from the infield for the first few laps. A frog hops away from Lane 1, following track etiquette and giving me the right-of-way. Bats flitter into and out of formation, snagging gnats as the sky brightens.
I set off from my Mother's front door about 5:30am and follow the usual route to LBJ High School's track, where I do a "ladder" of 1-2-3-4-3-2-1 laps. I've never tried a heart-rate monitor before, but my brother Keith lends me his. Data suggest that I'm going a bit fast for my age:
939 calories burned, 25% fat — estimated "training zone" 107-139 beats/minute — below zone 1:10, in zone 27:39, above zone 48:30 — average pulse 143 (87%), maximum 170 (104%).
The individual laps look like:
| laps | split | avg | end | recovery | avg | end | |
|---|---|---|---|---|---|---|---|
| - | 15:45 | 132 | 115 | - | - | - | |
| 1 | 2:11 | 141 | 154 | 2:11 | 122 | 108 | |
| 2 | 4:10 | 148 | 151 | 2:11 | 124 | 108 | |
| 3 | 6:18 | 150 | 158 | 2:19 | 127 | 110 | |
| 4 | 8:22 | 154 | 159 | 2:20 | 130 | 111 | |
| 3 | 6:05 | 155 | 164 | 2:25 | 132 | 116 | |
| 2 | 3:55 | 157 | 166 | 2:08 | 131 | 118 | |
| 1 | 1:44 | 159 | 170 | 1:19 | 147 | 121 | |
| - | 13:48 | 148 | 145 | - | - | - |
Yesterday's early-morning run may have slowed me today; I push hard on the last few laps to get them under 2 minutes.
^z - 2009-08-16