Pregnant women coached through their first delivery do not fare much better than those who just do what feels natural, says a study released Friday.
Researchers at the University of Texas Southwestern found that women who were told to push 10 minutes for every contraction gave birth 13 minutes faster than those who were not given specific instructions.
But they said the difference has little effect on the overall birth, which experts say can take up to 14 hours on average.
"There were no other findings to show that coaching or not coaching was advantageous or harmful," said lead author Dr. Steven Bloom, the interim head of obstetrics and gynecology at the Dallas-based university.
"Oftentimes, it's best for the patient to do what's more comfortable for her," he added.
Bloom and his team studied 320 first-time mothers who had simple pregnancies and did not receive epidural anesthesia.
About half were given specific instructions by certified nurse-midwives during the second stage of labor, when they were fully dilated. The rest were told to "do what comes naturally."
On average, coached mothers trimmed the final stage to 46 minutes compared with 59 minutes, according to the study sponsored by the National Institute of Child Health and Human Development at the National Institutes of Health.
Women in both groups experienced about the same amount of forceps use, cesarean deliveries and skin tears, among other complications.
The results were published in the January issue of the American Journal of Obstetrics and Gynecology.