Effects of Exercise on Pregnancy Outcomes in Mice
Author Information
Author(s): Lovell Evangeline A. K., Hosking Shanna L., Groome Holly M., Moldenhauer Lachlan M., Robertson Sarah A., Gatford Kathryn L., Care Alison S.
Primary Institution: Robinson Research Institute, School of Biomedicine, University of Adelaide, Adelaide, SA Australia
Hypothesis
Exercise would improve uterine vascular adaptations and therefore pregnancy outcomes, and these effects would be greater in compromised pregnancies.
Conclusion
Exercise before and during pregnancy in mice can have different effects on fetal outcomes, depending on the paternal and/or fetal genotype.
Supporting Evidence
- Exercise increased the number of implantation sites in both mid and late pregnancy.
- Exercised BALB/c-mated mice showed reduced fetal growth compared to sedentary controls.
- Exercise improved placental efficiency in abortion-prone DBA/2J-mated pregnancies.
- Maternal exercise reduced body fat ratios in late pregnancy.
- Exercise did not affect pregnancy rates in either mating group.
Takeaway
Exercising while pregnant can help some mice have healthier babies, but it can also cause problems depending on the dad's genes.
Methodology
CBA/J female mice were mated with BALB/c or DBA/2J males and subjected to treadmill exercise or remained sedentary for 6 weeks before and during pregnancy.
Potential Biases
Potential biases related to the specific genetic backgrounds of the mice used in the study.
Limitations
The study's findings may not fully translate to human pregnancies due to differences in exercise responses between species.
Participant Demographics
CBA/J female mice mated with BALB/c or DBA/2J males.
Statistical Information
P-Value
p<0.05
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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