by caryn » Fri Mar 11, 2011 12:52 am
Anecdotally, we've had posters who were biking centuries or running marathons every weekend and posters who were drill instructors for the Army and posters who were ballerinas. So I'd expect exercise might at best lower risk somewhat.
The
most recent thing I can find in PubMed pretty much says the same; it might lower risk a little bit:
High levels of early pregnancy active living activity (OR: 0.4, 95% CI: 0.1-1.1, ptrend=0.07) and household/caregiving activity (OR: 0.4, 95% CI: 0.1-1.3, ptrend=0.07) were associated with a 60% reduction in risk of hypertensive disorders relative to low levels; however, these associations were of marginal statistical significance. High levels of total physical activity (OR: 0.3, 95% CI: 0.1-1.0, ptrend=0.06) in early pregnancy were associated with a 70% reduction in the risk of hypertensive disorders relative to low levels; however, this association was also of marginal statistical significance. Pre-pregnancy physical activity was not associated with hypertensive disorders."Marginal statistical significance" means "just barely affects the overall data." Near enough.
Here's
another with similar findings:
Although we found a tendency towards a lower risk of pre-eclampsia in women with the highest degree of physical activity during leisure time, especially in overweight women, no significant associations were found. It was concluded that leisure time physical activity the year before pregnancy does not protect against pre-eclampsia.That said, I'd certainly vote for eating well and exercising moderately preconception and taking care of yourself well in pregnancy. If nothing else, it makes recovery from the acute illness of preeclampsia much easier. It would be no fun to take that PE beating without some reserves, kwim?
Anecdotally, we've had posters who were biking centuries or running marathons every weekend and posters who were drill instructors for the Army and posters who were ballerinas. So I'd expect exercise might at best lower risk somewhat.
The [url=http://www.ncbi.nlm.nih.gov/pubmed/20798663]most recent thing[/url] I can find in PubMed pretty much says the same; it might lower risk a little bit: [i]High levels of early pregnancy active living activity (OR: 0.4, 95% CI: 0.1-1.1, ptrend=0.07) and household/caregiving activity (OR: 0.4, 95% CI: 0.1-1.3, ptrend=0.07) were associated with a 60% reduction in risk of hypertensive disorders relative to low levels; however, these associations were of marginal statistical significance. High levels of total physical activity (OR: 0.3, 95% CI: 0.1-1.0, ptrend=0.06) in early pregnancy were associated with a 70% reduction in the risk of hypertensive disorders relative to low levels; however, this association was also of marginal statistical significance. Pre-pregnancy physical activity was not associated with hypertensive disorders.[/i]
"Marginal statistical significance" means "just barely affects the overall data." Near enough.
Here's [url=http://www.ncbi.nlm.nih.gov/pubmed/20121498]another[/url] with similar findings: [i]Although we found a tendency towards a lower risk of pre-eclampsia in women with the highest degree of physical activity during leisure time, especially in overweight women, no significant associations were found. It was concluded that leisure time physical activity the year before pregnancy does not protect against pre-eclampsia.[/i]
That said, I'd certainly vote for eating well and exercising moderately preconception and taking care of yourself well in pregnancy. If nothing else, it makes recovery from the acute illness of preeclampsia much easier. It would be no fun to take that PE beating without some reserves, kwim?