How Does the Lumbopelvic Complex Cope with the Obstetrical Load during Standing? Ergonomic Aspects of Body Posture in Pregnant Women

Abstract

Pregnancy induces numerous modifications in the musculoskeletal system of the female body. Since one of the essential roles of the lumbopelvic structure is to support mechanical loads in the upright position, this study was designed to simulate the response of this complex to the growing foetus in pregnant women. The authors hypothesized that posture (i.e., lordosis and muscle involvement) under pregnancy conditions might be adjusted to minimize the demands of the obstetrical load. The analysis of the load on the musculoskeletal system during gestation was made based on numerical simulations carried out in the AnyBody Modeling System. The pregnancy-related adjustments such as increased pelvic anteversion and increased lumbar lordosis enhance the reduction of muscle activation (e.g., erector spinae, transversus abdominis or iliopsoas), muscle fatigue and spinal load (reaction force). The results may help develop antenatal exercise programs targeting core strength and pelvic stability.

Prenatal Yoga terhadap Penurunan Nyeri Lumbal 4-5

“…Massa tambahan yang muncul di dalam perut ibu hamil seperti massa janin, massa cairan ketuban dan massa rahim akan mengakibatkan pusat massa kelebihan berat badan sehingga, dapat meningkatkan lingkar perut selama kehamilan. Kelebihan berat badan tersebut berada di tengah garis abdominopelvis (Michnik et al, 2022). Perubahan pada payudara dan bahu yang semakin membungkuk saat posisi berdiri membuat lengkungan pada punggung dan lumbal menonjol sehingga menyebabkan ibu hamil sulit untuk beraktivitas (Wahyuni & Rahayu, 2020).…”