LUMBAR KINEMATIC PATTERN AMONG ADULTS WITH LOW BACK PAIN: A STUDY PROTOCOL

Non-Specific Low back pain (NSLBP) is associated with lumbar spine kinematics and curvature changes. However, there is limited information regarding lumbar spine kinematics and curvature in normal daily living when both static and dynamic postures are adopted interchangeably during extended periods. The aim of this study is to evaluate the differences in lumbar kinematic patterns and curvature when adopting various static and dynamic postures over an extended period of time among adults with acute, chronic and without NSLBP. Lumbar kinematic patterns and curvature of adults with chronic and acute NSLBP will also be reassessed at six weeks and three months follow-up. This is a cross-sectional and prospective design study. Seventy-two adults aged between 20 and 45 years will be recruited for three study groups (acute, chronic and without NSLBP). Kinematic parameters that include a lumbar range of movements, velocities, accelerations and lumbar curvature changes will be assessed for a continuous two-hour period using an inertial measurement system. During the two hours of monitoring, participants will be required to perform a list of functional tasks in a simulated home environment. Participants will be free to adopt any postures as in a normal home/work environment during performing these tasks. Lumbar curvature angles and kinematic patterns of lumbar spine will be analysed and compared between three groups. This study will add to the knowledge regarding lumbar curvature and kinematic patterns of lumbar spine when adopting various static and dynamic postures interchangeably over an extended period among adults with NSLBP.