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June 25, 2005
1:56:36/147
Yes, there are lots of boring entries like this. Bear with me. I'm not doing this because you want to read about my running, but because anybody running enough to consider it training should keep a log somewhere. Why? When you get injured, you can go back and check what you did that you should no longer do. Theoretically you can also review your progress, but I don't bother with that. Progress for a marathoner takes years.
Next week I begin training. Tomorrow I'm taking a rest. So today I ran 24.5 km (15.2 mi) before eating breakfast as a long jog. I used to run longer runs too fast, so I'm slowing down to focus on form. Notice my average heart rate was about 76% of my theoretical maximum. Maybe even that's too fast to work the fat burning mechanisms. What I'd like to achieve is an appreciable increase in the energy contribution from metabolism of fat.
It really boils down to ecology. Ideally you want to use only easily renewed energy sources that don't increase pollution and are available in abundance.
Posted by Mark at June 25, 2005 11:08 AM
Comments
The farthest I have run is 10 miles. I looked up my fastest 10-mile runs and I had one at age 38 and one at age 40 at almost the same time. The speed was exactly 7:50 per mile. On your 15+ mile run in which you slowed down and made yourself take it easy you were doing 7:40 per mile. And that summer I turn 40 I had lost weight and probably weighed within 3 or 4 pounds what you do now (approx. 184)so you do not have a weight advantage. That year I turned 40, I also ran a 5K on the track to see if I could match the time Matt told me the cross country coach said you had to beat to be on the team -- 21:30. I was able to do that at 21:20 with extreme effort. So, your running is certainly on a different level than my best efforts.
Posted by: Dana at June 25, 2005 10:19 PM