OBJECTIVE: Altered movement patterns and lower extremity misalignment are key features in low back pain developers (LBPDs), leading to significant changes in functional movements such as squats. These changes may result in clinical low back pain (LBP) based on the kinesiopathology model. Core muscles are crucial for creating a stable platform for limb movement, but LBPDs typically have weak and poorly activated deep muscles, contributing to inefficient movement patterns. This study aims to assess the effect of a lumbopelvic stability program on lower extremity kinematics in LBPDs during single-leg squats (SLS). DESIGN: Pre-post study. SETTING: University dormitory gym. PARTICIPANTS: Thirty female participants identified as LBPDs, divided into two groups of experimental (n = 15) and control (n = 15). MAIN OUTCOME MEASURES: Kinematic variables, including hip and knee flexion and abduction, and ankle dorsiflexion and abduction (eversion), were measured during SLS using two-dimensional video analysis before and after the intervention. RESULTS: Significant differences were found in hip flexion (F 13.36, p = 0.001), hip abduction (F 73.42, p = 0.001), knee flexion (F 23.65, p = 0.001), and knee abduction (F 13.37, p = 0.001) post-intervention. A 6-week lumbopelvic stability program improved hip and knee kinematics in LBPDs, highlighting the importance of core stability in optimizing movement and potentially preventing future LBP.

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