Tuesday, May 20, 2008

Footpod freakout

So I'm going to make more of an effort to run outside, now that it's not 28 degrees at the time of the morning when I need to run. I still want to make it to the gym once in a while, though, to keep some full-body strength going. I think I've settled on a schedule that will get me to the gym (and treadmill) twice a week, and running outside 3 times.


I want to move my workout tracking to the Forerunner and the Garmin site, so when I bought Lumpy, I got the Footpod attachment as well. The GPS watch only works to track your speed if you're moving across the surface of the earth - if you're staying in one place, like on a treadmill, the GPS doesn't know that you're running your heart out. Most of the non-GPS running watches/pace monitors use footpods as their main form of measuring speed and distance - you just have to calibrate them really well by, say going to a track and running a set distance, timing yourself, and entering that into the watch. The Garmin was supposed to be easier to calibrate because it could use the GPS to do it - just hook up the footpod, set the watch to "calibrate", and run around until it tells you it's ready. That's what I did - I found it really easy, and it told me that I was calibrated at 972, what ever that means. I assume that's the quality, out of 1000, of the calibration it did. Not sure if that's good or not...

The first time I used the foodpod attachment on the treadmill, it worked pretty well. It was an easy run, about 3.5 miles at about 8:15 pace. Here's what it looked like:

Steady pace, splits are within tolerances. Seems about right.

This morning I tried it again, this time on a speed workout. I did a 10 minute warm up at 9:15 pace, then 5 x 4 minute intervals at 6:30 with 2:00 rests in between at 10:00 pace, the a 7 minute warm down back at 9:15. This is what that looked like:

Huh? It's all over the place, from 6:50/mile on up to 50 minutes/mile. It has me going 4.7 miles - the treadmill gave me 5.67. I don't even know why it was tracking elevation, but apparently I topped out at 5135 feet, from a starting point of 4647. Strange stuff. This needs some more looking into...

1 comment:

SnowLeopard said...

So much technology- looks complicated to me! I'm sure you'll figure it out though, you being the smart librarian "there-must-be-a-book-on-this-somewhere" type... :) Very nice to have a way to accurately track what you're doing outside, even if not quite on the treadmill.