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The prevalence of low back pain is approximately 49% to 90%, and that 25% of patients seeking treatment for low back pain have a recurrence within the first year. Chronic non-specific low back pain is the most common of all types of pain, not being attributed to a specific pathological cause and with a minimum pain duration of 12 weeks. Forty percent of subjects with acute low back pain will develop chronic low back pain.
Exercise is recommended for the treatment of chronic low back pain because of significant improvements in pain and disability over other therapies, but the evidence is low in the treatment of subacute or acute pain, as exercise appears to be equally effective over rest. Motor control is based on the contraction of the deep and stabilising muscles of the lumbar spine (multifidus and transverse abdominis), performing simple voluntary contraction exercises and increasing (without losing this contraction) their difficulty and functionality. At the beginning, the patient must be able to maintain the isometric contraction of the deep muscles while breathing normally. On the other hand, there is great difficulty in voluntarily contracting the multifidus muscles, especially for subjects with chronic non-specific low back pain, where arthrogenic inhibition hinders their contraction. The application of ultrasound as feedback may help patients to correctly contract this musculature.
Our main objective in the study will be to measure and compare pain, disability, global impression of effect, in patients with non-specific mechanical chronic low back pain after applying a motor control exercise programme with and without ultrasound feedback.
In addition, the investigators will compared this type of exercise with a conventional exercise programme.
A study will be carried out to compare a conventional exercise protocol for the management of non-specific chronic low back pain, with another motor control exercise protocol with and without ultrasound feedback for its correct learning and execution.
For the ultrasound feedback, a video will be recorded where the participant will be able to see how the core muscles contract when each of the motor control exercises is performed.
The participants will be divided into three groups. The first group will perform a general exercise plan for the lower back. The second group will perform a plan of specific motor control exercises aimed at activating the lumbar multifidus and transversus abdominis muscles, and the third group will perform a plan of specific motor control exercises aimed at activating the lumbar multifidus and transversus abdominis muscles using ultrasound as a feedback method.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Non-specific lumbar exercise group | Experimental | Subjects perform a conventional lumbar exercise program twice a week for four weeks. |
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| Group motor control lumbar exercises | Experimental | Subjects perform a lumbar stabilization exercise program twice a week for four weeks. |
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| Group motor control lumbar exercises with ultrasound echography feedack | Experimental | Subjects perform a lumbar stabilization exercise program in conjunction with a video where participants can see how the muscles contract. |
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| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Non-specific lumbar exercise group | Other | Subjects perform a conventional lumbar exercise program twice a week. |
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| Measure | Description | Time Frame |
|---|---|---|
| Numerical Pain Rating Scale | This scale assesses the level of pain on a range from 0 to 10, with 0 being no pain and 10 being the maximum possible pain. For a clinically relevant difference to exist, there has to be a difference between measurements of at least 2 points. This scale has been shown to have good levels of reliability for pain measurement. | Change from baseline at 3 months |
| Measure | Description | Time Frame |
|---|---|---|
| Roland-Morris Disability Questionnarie | This questionnaire assesses the degree of disability of the patient with low back pain (range 0-24, with 0 being no disability and 24 being total disability). Its Spanish version has been shown to be reliable. To obtain a clinically relevant difference, differences of 1-2 points would be necessary in those patients with low levels of disability, and 7-8 points in those with high levels of disability. |
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Inclusion Criteria:
Exclusion Criteria:
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| Name | Affiliation | Role |
|---|---|---|
| Daniel Pecos-Martin, PhD | Alcala University | Study Chair |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Centro Investigación Fisioterapia y Dolor | Alcalá de Henares | Madrid | 28805 | Spain | ||
| Physioterapy and Pain center research |
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Single-blind, randomised clinical trial
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| motor control lumbar exercises | Other | Subjects perform a lumbar stabilization exercise program. |
|
| motor control lumbar exercises with ultrasound echography feedack | Other | Subjects perform a lumbar stabilization exercise program in conjunction with a video where participants can see how the muscles contract. |
|
| Change from baseline at 3 months |
| Tampa Scale for Kinesiphobia (TSK-11) | This questionnaire assesses fear of movement. A minimum detectable change in fear or avoidance behaviour requires 5.6 items. The total score of the scale range from 17- 68, where 17 means no kinesiophobia, 68 means severe kinesiophobia, and score ± 37 indicates there is kinesiophobia. This scale has been shown to have an acceptable internal consistency and to be valid. | Change from baseline at 3 months |
| Patient Global Impression of Change (PGIC) | The self-report measure Patient Global Impression of Change (PGIC) reflects a patient's belief about the efficacy of treatment. PGIC is a 7 point scale depicting a patient's rating of overall improvement. Patients rate their change as "very much improved," "much improved," "minimally improved," "no change," "minimally worse," "much worse," or "very much worse."The PGIC is commonly used in clinical studies assessing pain relief following treatment. | Change from baseline at 3 months |
| Alcalá de Henares |
| Madrid |
| 28805 |
| Spain |
| ID | Term |
|---|---|
| D017116 | Low Back Pain |
| D009043 | Motor Activity |
| ID | Term |
|---|---|
| D001416 | Back Pain |
| D010146 | Pain |
| D009461 | Neurologic Manifestations |
| D012816 | Signs and Symptoms |
| D013568 | Pathological Conditions, Signs and Symptoms |
| D001519 | Behavior |
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