Key result
A brief period of mild supine exercise in healthy pregnant women resulted in small, statistically insignificant increases in fetal heart rate, with no significant abnormalities observed.
Why the study?
Does a brief period of supine exercise affect fetal heart rate in healthy pregnant women in the second and third trimesters?
Observational (n=25)
Does a brief period of supine exercise affect fetal heart rate in healthy pregnant women in the second and third trimesters?
Submaximal supine exercise of short duration does not cause significant fetal heart rate abnormalities in healthy pregnant women during the second and third trimesters.
Short supine exercise may not affect fetal heart rate in healthy pregnancies; leaves open questions on intensity, duration, and higher-risk groups.
The effects of a brief period of supine exercise on fetal heart rate (FHR) was studied in 25 healthy, regularly exercising women, 12 in the late second trimester and 13 in the mid third trimester. Although statistically significant increases in maternal mean arterial pressure and pulse occurred, the exercise intensity was mild, with the average percent maximal pulse being 46 +/- 5% and 49 +/- 5% in the second and third trimester groups, respectively. Small increases in FHR were seen in both groups, which were insignificant statistically and physiologically. No patient experienced significant FHR abnormalities as a result of the supine exercise sequence. The findings suggest that pregnant women may continue submaximal supine exercise of short duration into the mid to late third trimester.
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Nesler et al. (1988) conducted an observational in Pregnancy (n=25). Brief period of supine exercise was evaluated on Fetal heart rate (FHR). A brief period of mild supine exercise in healthy pregnant women resulted in small, statistically insignificant increases in fetal heart rate, with no significant abnormalities observed.
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