Assessment of the Evolution of Lumbar Spine Movement Fluidity Using Xsens Inertial Sensors in Subjects With Chronic Low Back Pain Before and After Rehabilitation

NCT ID: NCT07327554

Last Updated: 2026-01-29

Basic Information

• Recruitment Status: NOT_YET_RECRUITING
• Clinical Phase: NA
• Total Enrollment: 25 participants
• Study Classification: INTERVENTIONAL
• Study Start Date: 2026-02-28
• Study Completion Date: 2027-04-30

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.

Conditions

Low Back Pain

Study Design

• Allocation Method: NA
• Intervention Model: SINGLE_GROUP
• Primary Study Purpose: SUPPORTIVE_CARE
• Blinding Strategy: NONE

Study Groups

Compare Movement Fluidity Before and After Rehabilitation

Evolution of Movement Fluidity Before and After Rehabilitation in patients with chronic low back pain

Group Type: EXPERIMENTAL

X-sens sensor

Intervention Type: DEVICE

kinematic movement measurement using 5 Xsens inertial sensors (Awinda) placed on the head, thoracic vertebrae (T8), lumbar vertebrae (L1, L4), and sacrum (S1), before and after the rehabilitation program (ten working days). Movement will be measured during standardized tasks including 3 lumbar spine flexions and 3 right and left lumbar rotations. Movements will be recorded by the sensors at a frequency of 100 Hz.

Interventions

X-sens sensor

kinematic movement measurement using 5 Xsens inertial sensors (Awinda) placed on the head, thoracic vertebrae (T8), lumbar vertebrae (L1, L4), and sacrum (S1), before and after the rehabilitation program (ten working days). Movement will be measured during standardized tasks including 3 lumbar spine flexions and 3 right and left lumbar rotations. Movements will be recorded by the sensors at a frequency of 100 Hz.

Intervention Type: DEVICE

Eligibility Criteria

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
• Pregnant or breastfeeding women

• Minimum Eligible Age: 18 Years
• Maximum Eligible Age: 65 Years
• Eligible Sex: ALL
• Accepts Healthy Volunteers: No

Sponsors

University Hospital, Montpellier

OTHER

Sponsor Role: lead

Responsible Party

Responsibility Role: SPONSOR

Principal Investigators

Isabel TAVARES, MD

Role: PRINCIPAL_INVESTIGATOR

University Hospital, Montpellier

Central Contacts

Isabel TAVARES, MD

Role: CONTACT

i-tavaresfigueiredo@chu-montpellier.fr

0467338717 ext. 33

Other Identifiers

2025-A02160-49

Identifier Type: OTHER

Identifier Source: secondary_id

RECHMPL25_0310

Identifier Type: -

Identifier Source: org_study_id