Evaluation of Rectus Abdominis Muscle Using High-Frequency Ultrasound and Shear Wave Elastography to Construct a Risk Prediction Model for Postpartum Low Back Pain.

Rationale And Objectives: This study aimed to develop a risk prediction model for low back pain (LBP) using high-frequency ultrasound to measure rectus abdominis muscle activity in postpartum women.

Materials And Methods: This study included 197 pregnant women who delivered at our hospital and underwent routine postpartum follow-up. High-frequency ultrasound was used to assess the inter-rectus distance, thickness, and elasticity of the rectus abdominis muscle.