OK, I FINALLY caught up to all you "do-gooders" and started exercising yesterday. DH and I are still thinking about the WDW 10K in October, so I followed Hal Higdon's Beginning Runner's Guide 30/30 plan. My 5yo DD (Beth) came with me, and she was the BEST walking/running buddy I could have asked for.
The 30/30 plan in a nutshell is that you walk/run for 15 minutes and then turn around and go back, so you total 30 minutes. After the first 10 minutes of walking only, you are allowed to run for 30 seconds at a time, recover (however long you need) and then run again. The last 5 minutes are cool-down, so walking only. (As you get better, you can do that middle 15 minutes alternating running with walking every 30 seconds. I'm not up to that yet.)
Beth was great. She kept up with me the whole time, never complained, and then when I was still wanting to "recover" for a little longer (feeling lazy after my illness), she'd ask, "Mommy, can we run again?" How can you say no to that? So I ran a little more than I would have without my favorite little kick-in-the-butt person.
DSIL who ran track in HS and college and is a marathoner says that kids shouldn't really do track until they're older. I need to find out just what Beth is "allowed" to do at this age -- I'd hate to lose my running buddy, but I don't want her to do any damage. I'm off to read Hal Higdon's take on this, but wanted to see if you all had any ideas as well. Most of all, I know that her dietary needs will increase, and I'm going to have to get her to eat a little more. (Ah, to have such problems.) If/when I progress to running only, I think she'll need to stay home, but for now, it's a great way for us to spend time together.