MedicalResearch.com Interview with:
[caption id="attachment_28794" align="alignleft" width="180"]

Prof. Kari Bø[/caption]
Prof. Kari Bø PhD
Norwegian School of Sport Sciences
Oslo, Norway
MedicalResearch.com: What is the background for this study? What are the main findings?
Response: The background is that more and more female elite athletes continue to exercise into their 30s and beyond and more want to become pregnant and some to continue to compete at the same level after giving birth.
MedicalResearch.com: What should readers take away from your report?
Response: To date there is little scientific knowledge on elite athletes and others who perform strenuous exercise (eg women in the military) during pregnancy and after childbirth and we therefore have to be cautious when recommending intensity levels of both endurance and strength training exercise. However, given the knowledge we have now.
- Elite athletes planning pregnancy may consider reducing high impact training routines in the week after ovulation and refraining from repetitive heavy lifting regimens during the first trimester as some evidence suggests increased miscarriage risk.
- There is little risk of abnormal fetal heart rate response when elite athletes exercise at <90% of their maximal heart rates in the second and third trimesters.
- Baby birthweights of exercising women are less likely to be excessively large (>4000g) and not at increased risk of being excessively small (<2500g).
- Exercise does not increase the risk of preterm birth.
- Exercise during pregnancy does not increase the risk of induction of labour, epidural anesthesia, episiotomy or perineal tears, forceps or vacuum deliveries.
- There is some encouraging evidence that the first stage of labour (before full dilatation) is shorter in exercising women.
- There is also some encouraging evidence that exercise throughout pregnancy may reduce the need for caesarean section.