My whole body aches, but I only walked 4km's (half of it up my mountain). I would be curious to see how much I walk at work... 8 hours of walking back and forth.. in heels, no wonder I'm sore!
Amy Jo - I used to run.. when I was first starting out I would break it down into 5 minute intervals, I started with 30 sec run, 4 min 30 sec walk, did that for a week, and then bumped it up to 1 min run, 4 min walk, and so on, until you are running for the full 5 minutes. My best advice is to REALLY stretch after, I'd spend 5-10 minutes streching to make sure you are all loose. It helped me a lot. Goodluck, I love running