Left Lateral Positioning for Fetal Growth Restriction

This trial explores whether lying on the left side during pregnancy (left lateral recumbent positioning) can improve the growth of babies who aren't growing as expected. Researchers aim to determine if this position also affects the mother's overall health, stress levels, and the baby's heart function. Participants will either rest on their left side or receive regular care, with their physical activity tracked by a smartwatch. Pregnant individuals informed that their baby is smaller than expected and who are between 24 to 34 weeks pregnant might be suitable for this study. As an unphased study, this trial offers participants the opportunity to contribute to valuable research that could enhance pregnancy outcomes.

The trial does not specify if you need to stop taking your current medications. However, if you are on anticoagulation therapy, you cannot participate in the trial.

Research shows that lying on the left side is generally safe and comfortable for pregnant women. Studies have found that this position can improve blood flow to the placenta and increase oxygen delivery to the baby, potentially aiding the baby's growth.

Researchers are excited about this trial because it explores a simple and non-invasive method to potentially improve fetal growth in cases of fetal growth restriction. Unlike traditional medical interventions that might involve medication or more intensive monitoring, this approach simply involves pregnant individuals spending time in a left lateral recumbent position. This positioning may enhance blood flow to the placenta, potentially benefiting fetal development. Additionally, the trial's use of smartwatches to track participants' activity levels adds a modern twist, allowing for precise monitoring and personalized insights.

Research has shown that lying on the left side during pregnancy can improve blood flow to the uterus and placenta, aiding in oxygen delivery to the baby. One study found that blood flow decreased by 23% when mothers lay on their backs instead of their sides. Another study observed that resting on the left side increased fetal movements, often a sign of better health for the baby. Additionally, this position has been linked to more fetal urine production, indicating better fluid balance for the baby. In this trial, participants in the intervention group will practice left-lateral recumbent positioning to assess its potential benefits for fetal growth and health, especially in pregnancies where growth is a concern.¹²⁴⁶⁷