Comparison of Spine–Pelvis Kinematics Variability during Sit-to-Stand and Stand-to-Sit in People with & without Chronic Low Back Pain: A Vector Coding and Statistical Parametric Mapping Approach

There is evidence in the literature to suggest that low back pain may change spine–pelvis coordination during activities of daily living. This study aimed compare variability sit-to-stand people with and without LBP. Ten healthy individuals a history LBP ten participated this study. Three-dimensional kinematic data upper trunk (UT), lower (LT), (LB), pelvis segments stand-to-sit were recorded using multi-segmental spine models motion capture system. The patterns adjacent (UT, LT, LB, pelvis) calculated modified vector coding method was implemented through custom MATLAB code. An independent sample t-test utilized assess differences pattern, statistical parametric mapping used quantify between two groups. results indicate there are some groups stand-to-sit. However, significant difference only observed sit-to-stand. showed can alter kinematics even (pain-free) parts by changing UT LT way lead an increase loading on these segments. Additionally, more sit-to-stand, which be associated strategy facilitates optimal possibly pain-free pattern.