A.M. Ran alone. 15.07 in 1:52:20. This run took my Five Fingers over the 500 mile boundary. I think Steve Hooper will have to tell his sales rep that Five Fingers can go quite a bit over 500 miles. Did some experiments trying different form alterations and observing their impact on HR at the same pace, or the pace at the same HR. Discovered one thing - we are took quick to conclude that changing the form has given us a performance boost. I would do something different, it would make me run faster, but HR would go up as well. So in other words, I wanted it to work bad enough that I subconsciously sped up and ignored the increased effort, which was easy to do when the pace is in the 7:00 - 7:30 range. However, I did find something that appeared to be effective. No dramatic effect, but at least something. If I focused on a quick push and then a quick transition to relaxation as soon as the leg was off the ground, I was able to bring my HR down from 125 to 123 at the same pace (7:25 per mile). This was difficult to do properly, though. Not surprising, if it was easy I would have figured it out already. I kept doing one of the two - either relax too much and forget to power, in which case the HR stayed at 123 but the pace dropped to 7:35-7:40, or I would get excited, power hard, but then forget to relax. This would bring the pace up to under 7:10, but HR went up to 126-127. P.M. 1 with Julia in 9:56, 1.5 with Benjamin and Jenny in 13:07, 0.5 with Benjamin in 3:56, and 2.5 alone in 14:58. Managed to fit the HRM on Benjamin. His HR was around 160 at 9:00 pace, around 174 at 8:00 pace, and after about 0.1 of sub-8:00 pace followed by 100 meters in 23 (6:08 pace) it got up to 186. First time I've been able to observe his HR at different speeds. Five Fingers - 505.49 miles. | 