Chronic Low Back Pain
Conditions
Brief summary
This study will test the within and between day variability of spinal kinematics and trunk muscle activity in healthy subjects and chronic low back pain patients during various daily-life activities.
Detailed description
This study will test the within and between day variability of spinal kinematics and trunk muscle activity in healthy subjects and chronic low back pain patients during various daily-life activities. Participants will come twice to the motion laboratory. During the first session, participants will first perform different functional activities (V1), such as sit-to-stand, gait, lifting tasks, stepping up. Their spinal kinematics will be measured with a camera-based system (VICON) using a multi-segment spinal model and trunk muscles activity will be recorded with surface electromyography. After a break, participants will have to perform all the functional activities a second time (V2). These two measures (V1 and V2) will be used to determine the within day variability of spinal kinematics. Finally, all participants will come one week later (V3) to repeat all the measurements to determine the between day variability.
Interventions
None listed
Sponsors
Haute Ecole de Santé Vaud
Study design
Observational model
CASE_CONTROL
Time perspective
PROSPECTIVE
Eligibility
Sex/Gender
ALL
Age
18 Years to 70 Years
Healthy volunteers
Yes
Inclusion criteria
* sufficient French level to understand the instructions for the tests, the information sheet, the consent form and the questionnaires * All chronic low back pain patients should present with non-specific low back pain (pain from lower ribs to gluteal folds) for more than 3 months.
Exclusion criteria
* pregnancy * body mass index (BMI) that is above 32 * patients should not have any sign of specific low back pain such as the presence of infection, rheumatological or neurological diseases, spinal fractures, any known important spinal deformities, previous back surgery that limits spinal mobility, tumours * high level of pain at the time of experiment that prevents repeated movements (severity and irritability) * other concomitant pain or condition that could compromise the evaluation of spinal kinematics.
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Spinal kinematics | Change between measure 1 and measure 2 (30 minutes later) | Range of movement at the lower lumbar, upper lumbar, lower thoracic and upper thoracic joints |
| Trunk muscle activity | Change between measure 1 and measure 2 (30 minutes later) | Surface electromyography of paraspinal, rectus abdominis and external obliques muscles |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Disability (ODI) | Measure 1 (Day 0), Measure 3 (Day 7). | Oswestry Disability Questionnaire. Score between 0 (no disability) and 100. |
| Kinesiophobia | Measure 1 (Day 0), Measure 3 (Day 7). | Tampa Scale of Kinesiophobia. The total score is between 17 (no kinesiophobia) to 68 (high level of kinesiophobia). |
| Catastrophizing | Measure 1 (Day 0), Measure 3 (Day 7). | Pain Catastrophizing Scale. Score between 0 and 52 (high levels of catastrophizing). |
| Pain intensity | Measure 1 (Day 0), Measure 3 (Day 7) | Pain intensity will be quantified by the 11-point Numeric Pain Rating Scale. The scale range from 0 (no pain at all) to 10 (worst pain). |
| Fear | Measure 1 (Day 0), Measure 2 (Day 0), Measure 3 (Day 7). | Fear scale measured before each movement or activity. Score between 0 (no fear) and 10 (high levels of fear). |
| Pain expectation | Measure 1 (Day 0), Measure 2 (Day 0), Measure 3 (Day 7). | Pain expectation scale before each movement or activity. Score between 0 (no pain expected) and 10 (high levels of pain expected). |
| Back Pain Attitudes Questionnaire | Measure 1 (Day 0), Measure 3 (Day 7). | Back Pain Attitudes Questionnaire. Score between 34 (positive attitudes) and 170 (negative attitudes) |
| Disability | Measure 1 (Day 0), Measure 3 (Day 7) | Disability will be quantified by the Patient Specific Functional Scale. The scale assessed three relevant activities for the patient and scores each activity between 0 (impossible to realize the activity) to 10 (capable of doing the activity normally). |
Countries
Switzerland
Outcome results
None listed