Summary
| Name | Lakefront 4 | |||
| Location | Chicago, IL | |||
| Start Time | 7/17/2012 5:39 AM (UTC-05:00) | Category | My Activities:Running | |
| Distance | 4.23 mi | Time | 00:40:56.0 | |
| Time Moving | 00:40:56.0 | Stopped | 00:00:02.0 | |
| Average pace | 09:40 min/mi | Max. pace | 06:37 min/mi | |
| Weather | Clear; 84.5 °F | |||
| Calories | 534 kCal | |||
| Notes | "True" recovery run...? Okay, today's singular goal was to keep my heart rate below 136 bpm. (Using Phil Maffetone's 180-formula, I have determined - for better or for worse - that my maximum aerobic training heart rate is 135 bpm.) As my heart rate went up, I kept slowing down and slowing down and slowing down. I was hoping I could maintain a 135 bpm heart rate while running 9:16 pace. Not even close on this 90°F heat index morning! This was oddly eye-opening. I think I'm going to use the heart rate monitor for my recovery runs. This will force my recovery runs to truly be "recovery" in nature. It should also allow my body to metabolize fat and become more efficient at doing so (rather than being a glycogen hog!). I'm also curious to see what my pace ends up being on a day where I'm holding my heart rate at an upper limit and the heat index is less than the 90°F of this morning. I know blood viscosity changes with temperate so at lower temperatures, I should be able to maintain the heart rate cap while running a faster pace. | |||
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