The Claim
Spontaneous pushing in the lateral position during the second stage of labor increases umbilical cord blood pO2 levels by approximately 9.5 mmHg (28.3 vs. 18.8 mmHg) compared to Valsalva pushing in the supine position, while having no significant effect on umbilical cord pH or Apgar scores in healthy nulliparous women.
What the research says
Supports is higher
Support is ahead, but a single strong opposing study can change this.
These are independent scores, not a percentage. Higher-grade studies count more, so a single strong opposing study can outweigh several weaker ones.
When women push naturally while lying on their side during childbirth, their baby’s blood gets more oxygen compared to when they push while lying on their back using a forceful breath-holding technique—but it doesn’t change the baby’s blood acidity or Apgar score.
See the scientific wording
Spontaneous pushing in the lateral position during the second stage of labor increases umbilical cord blood pO2 levels by approximately 9.5 mmHg (28.3 vs. 18.8 mmHg) compared to Valsalva pushing in the supine position, while having no significant effect on umbilical cord pH or Apgar scores in healthy nulliparous women.
What the research says
1 studyWhen moms push naturally on their side during birth, their babies get more oxygen in the umbilical cord blood, but their health scores and blood acidity stay just as good as when moms push lying on their back. So side-pushing helps babies breathe better without any downsides.
Score breakdown, mechanism chain, raw evidence, ideal studies needed & 1 supporting studies
Not medical advice. For informational purposes only. Always consult a qualified healthcare professional before making health decisions.