Xmouv - Assessment of the Evolution of Lumbar Spine Movement Fluidity Using Xsens Inertial Sensors in Subjects With Chronic Low Back Pain Before and After Rehabilitation
Overview
- Phase
- Not Applicable
- Status
- Recruiting
- Enrollment
- 25
- Locations
- 1
- Primary Endpoint
- Correlation between the evolution of trunk flexion movement fluidity and the evolution of disability before and after rehabilitation program
Overview
Brief Summary
Low back pain, defined as pain located between the thoracolumbar junction and the lower gluteal fold, becomes chronic in 8% of patients. As the leading cause of disability worldwide, it has major individual and medico-economic consequences.
Three-dimensional biomechanical analysis allows exploration of movement alterations related to low back pain. Although several parameters have already been studied (maximum joint range of motion (ROM), lumbopelvic rhythm, movement variability, gait), no consistent kinematic profile has emerged. Movement fluidity, assessed by the presence of jerks (brief movement disturbances), remains under-described despite its relevance in evaluating movement quality.
Invistigators hypothesize that lumbar spine movement fluidity during flexion improves after a rehabilitation program and correlates with clinical response.
This project stands out by exploring a rarely studied parameter (movement fluidity) and integrating it as a potential indicator for rehabilitation monitoring.
Study Design
- Study Type
- Interventional
- Allocation
- Na
- Intervention Model
- Single Group
- Primary Purpose
- Supportive Care
- Masking
- None
Eligibility Criteria
- Ages
- 18 Years to 65 Years (Adult, Older Adult)
- Sex
- All
- Accepts Healthy Volunteers
- No
Inclusion Criteria
- •Age between 18 and 65 years inclusive
- •BMI between 18-30 kg/m²
- •Chronic low back pain lasting more than three months
- •Rehabilitation care in the Physical Medicine and Rehabilitation Department of Montpellier University Hospital
Exclusion Criteria
- •Sciatica episode within the last three months
- •Traumatic, tumoral, or infectious cause of low back pain
- •History of spinal, pelvic, or hip fracture
- •Inflammatory rheumatism
- •Lumbar arthrodesis
- •Severe scoliosis
- •Subject with a legal protection measure (guardianship, curatorship)
- •Subject under legal protection
- •Subject not affiliated to a social security system or not benefiting from such a system
- •Absence of informed written consent
Arms & Interventions
Compare Movement Fluidity Before and After Rehabilitation
Evolution of Movement Fluidity Before and After Rehabilitation in patients with chronic low back pain
Intervention: X-sens sensor (Device)
Outcomes
Primary Outcomes
Correlation between the evolution of trunk flexion movement fluidity and the evolution of disability before and after rehabilitation program
Time Frame: 2 weeks
Movement velocity will be measured during flexion using Xsens inertial measurement units (head, T8, L1, L4, S1). Velocity profiles will identify acceleration and deceleration phases. Movement fluidity will be quantified by a normalized jerk metric: the count of local minima and maxima on the angular velocity curve divided by flexion/extension duration (peaks/s). This normalization accounts for variations in movement speed between individuals and measurement sessions, providing a standardized measure of movement smoothness where lower values indicate more fluid motion. Disability will be measured by the change in the score of Oswestry Disability Index (ODI) questionary between the first and last day of rehabilitation. The ODI questionary contains ten topics concerning intensity of pain and activities of daily life. Each question is scored on a scale of 0-5 where zero indicates the least amount of disability and 5 indicating most severe disability. The ODI scale range from 0 to 100
Secondary Outcomes
- Changes in lumbopelvic rhythm between the first and last day of rehabilitation program(2 weeks)
- Changes in range of motion (ROM) between the first and last day of rehabilitation program(2 weeks)
- Changes in popliteal angle between the first and last day of rehabilitation program(2 weeks)
- Changes in maximum angular velocity between the first and last day of rehabilitation program(2 weeks)
- Changes in functional disability between the first and last day of rehabilitation program(2 weeks)
- Changes in pain between the first and last day of rehabilitation program(2 weeks)
- Changes in psychological impact between the first and last day of rehabilitation program(2 weeks)
- Changes in fingertip-to-floor distance between the first and last day of rehabilitation program(2 weeks)
- Changes in kinesiophobia between the first and last day of rehabilitation program(2 weeks)
- Changes in catastrophizing between the first and last day of rehabilitation program(2 weeks)
- Changes in fears and beliefs regarding work and physical activity between the first and last day of rehabilitation program(2 weeks)
- Changes in Schober index between the first and last day of rehabilitation program(2 weeks)
- Changes in heel-to-buttock distance between the first and last day of rehabilitation program(2 weeks)
- Changes in Sorensen test between the first and last day of rehabilitation program(2 weeks)
- Changes in Shirado test between the first and last day of rehabilitation program(2 weeks)
- Changes in isometric endurance of trunk muscles between the first and last day of rehabilitation program(2 weeks)