The Claim

In nulliparous women during the second stage of labor, spontaneous pushing in the lateral position increases the mean duration of the second stage by approximately 12 minutes compared to Valsalva pushing in the supine position, without increasing the risk of cesarean delivery or adverse fetal outcomes.

Source: Spontaneous Pushing in Lateral Position versus Valsalva Maneuver During Second Stage of Labor on Maternal and Fetal Outcomes: A Randomized Clinical Trial

What the research says

Supports is higher

Support is ahead, but a single strong opposing study can change this.

Supports
49score
Challenges
0score

These are independent scores, not a percentage. Higher-grade studies count more, so a single strong opposing study can outweigh several weaker ones.

Quantitative
1 study reviewed
In plain English

When first-time moms push naturally while lying on their side during childbirth, it takes about 12 minutes longer than pushing while lying on their back with forced breath-holding—but it doesn’t make C-sections or baby problems more likely.

See the scientific wording

Spontaneous pushing in the lateral position during the second stage of labor in nulliparous women increases the mean duration of the second stage by approximately 12 minutes (76.3 vs. 64.6 minutes) compared to Valsalva pushing in the supine position, without increasing the risk of cesarean delivery or adverse fetal outcomes.

What the research says

1 study
  1. Study: Spontaneous Pushing in Lateral Position versus Valsalva Maneuver During Second Stage of Labor on Maternal and Fetal Outcomes: A Randomized Clinical Trial

    When first-time moms push naturally while lying on their side instead of holding their breath and pushing lying on their back, labor takes about 12 minutes longer — but it’s easier on mom and just as safe for the baby.

Score breakdown, mechanism chain, raw evidence, ideal studies needed & 1 supporting studies

Fit Body Science verdict — we translate health claims into clear verdicts backed by peer-reviewed research.

Not medical advice. For informational purposes only. Always consult a qualified healthcare professional before making health decisions.