Perbandingan Morfologi Lumbopelvic Sagittal Balance Saat Posisi Duduk Tegak, Duduk Rileks, dan Berdiri pada Populasi Sehat

Abstract

This study aims to investigate the differences in lumbopelvic sagittal balance in three different postures—standing, sitting upright, and sitting relaxed—among healthy individuals. Sagittal balance of the spine is a crucial factor in maintaining an efficient and stable upright posture, and its disruption is associated with various spinal conditions. This study focuses on five key parameters: lumbar lordosis (LL), pelvic incidence (PI), pelvic tilt (PT), sacral slope (SS), and the PI-LL mismatch. Data were collected using radiographic imaging from 25 healthy individuals, and statistical analysis was conducted using ANOVA. The results revealed significant differences in LL, SS, PT, and PI-LL mismatch across the three postures (p<0.05), while PI showed no significant change. Specifically, LL was highest in the standing position, while SS and PT were lowest in the relaxed sitting posture. These findings highlight the importance of considering different sitting postures when assessing spinal alignment, especially in individuals who spend significant time sitting. The study provides valuable insights into spinal biomechanics, contributing to a better understanding of postural balance and aiding in clinical approaches for spinal deformities and rehabilitation strategies.