01/26/2025
                                            I recently came across a discussion among labor and delivery nurses citing ACOG practice bulletins that had been interpreted by clinicians to claim that neither peanut balls nor upright pushing are evidence-based. However, after reviewing the studies cited, it’s clear that they lack the nuanced input of experienced clinicians who truly understand labor dynamics and physiological birth.
Take the peanut ball, for example. It isn’t a magic wand to be shoved between a person’s legs to "simulate an upright position"; it’s a positional tool that requires significant skill to implement effectively. This study mistakenly treats it as a standalone intervention instead of addressing the real question: “Does targeted maternal positioning, applied by a skilled and knowledgeable provider, improve outcomes?” The tool itself is irrelevant. A stack of pillows can achieve the same effect—just with more effort and frustration, in my experience. This study doesn’t prove anything about the peanut ball—only that the researchers didn’t understand its proper use.
And that pushing study, like so many others, focuses on outcomes that don’t reflect meaningful clinical data. Upright pushing reduces episiotomies but increases second-degree tears—so what? How does it impact the overall rate of significant perineal trauma? Bleeding over 500ml (an antiquated threshold) is increased, but what about the rate of symptomatic hypovolemia or blood transfusion? Were the providers skilled in upright pushing, or were they simply uncomfortable with it? Is maternal recovery improved or worsened?
These are the questions that actually matter—yet they’re ignored.
The question has never been, “Is a peanut ball justifiable?” but rather, “Can positioning help labor outcomes when used appropriately?” Similarly, questioning upright pushing—a physiological norm that has existed for millennia—is misplaced. The more relevant question is, “Why do we continue forcing everyone into the same pushing position when evidence and experience both suggest that individualized, responsive care yields better outcomes?”
Finally, many of these studies compare interventions against "standard hospital management," which is already suboptimal for physiological birth. If the baseline is flawed, the findings are meaningless. A peanut ball placed by an obstetric nurse trained to follow rigid protocols will never achieve the same results as when used by a skilled provider in a physiologic birth environment.
Research that excludes experienced insights and fails to account for the full labor ecosystem should not dictate how we care for laboring individuals.
At the end of the day, these studies reflect a persistent problem within obstetric research—an inability to frame the right questions and an unwillingness to acknowledge the complexity of physiologic birth. Without context, applying these studies to clinical practice only perpetuates interventions that fail to serve birthing people effectively.