7.
Sep 2, 2006 3:44 PM

in response to:
Jonna14
Re: Getting pregnant and running
I've run 7 marathons and just had a baby in March. My doctor is very conservative and had me stop running when I was 2 months along since you're supposed to keep your heart rate under 140bpm while pregnant (since the baby's heart rate is about double whatever yours is). However, I don't remember when the baby's heart actually develops and when this rule kicks in (must form prior to 8 weeks in utero). I ran in the first two months of my pregnancy and my baby ended up delightfully. However, I recall feeling extremely tired. I don't really see why you would want to run a race if you were pregnant - it was just be SO taxing on your body...you're working hard enough to grow that little being in you! But, I don't think you'll do any long-term damage if you run the marathon early enough in your pregnancy.
Also, it may be of interest to you that my doctor's reasoning in cutting me off running while I was pregnant related to the stress on the pelvic floor, and it being weaker than it otherwise might be for labor and delivery. As that baby grows, there's a lot of extra weight bearing down on your pelvic floor - which has something to do with pushing the baby out when the time comes. I was on a strict diet of swimming, biking (stationary, of course...it gets pretty awkward riding a bike towards the end), elliptical trainer and weight-lifting. I thought I would have a hard time not running for 9 months (counting recovery time), but it went great, I only gained 30 pounds (baby was 8lbs15oz) and am now lighter, and faster, than I was pre-pregnancy.