Catrin, the dry heaves and spots weren't actually in my training plan and coach wasn't much happier about them than I was. Our weather has been just as variable as yours, in a higher temperature range. Tuesday morning it was 32° and we were covering sensitive plants. Saturday was that. Sunday it never got above 62°, which was great, too bad it was my day off running! Today was humid but only in the low 70s. So that's why I wasn't acclimated to that heat on Saturday. Haven't been able to acclimate to anything. Welcome to the new world ...

I had fun today with my new toy though. I'd kind of written off the running dynamics on my new Garmin 620 as something that was mostly fun to look at, and possibly over time I'll be able to see improvement in the values, but not something I'd use in realtime. I was still feeling kind of depleted from Saturday, and as I said, my plan for today called for not only slow but also backing off the mileage a bit, so it was a good day to work on form. First off I just worked on keeping my cadence up even though I was running slow, and I've been improving there. But then after I stopped for water I decided to put the running dynamics screen up and tried to keep my vertical oscillation under 8 cm, and here's what happened:

Click image for larger version.  Name: vert osc.jpg  Views: 709  Size: 10.4 KB  ID: 16884

I'm actually pretty surprised that I was able to put the realtime feedback into practice so readily. Yay.