Responsiveness of the Bridge Tests in Non-specific Low Back Pain

University of Bologna

Status: Completed

Conditions: Low Back Pain

Treatments: Diagnostic Test: Cluster of Clinical tests to measure lumbar stability

Study type: Observational

Funder types: Other

Identifiers

NCT03879031

1/Bridge

Details and patient eligibility

About

This observational study aims to investigate the internal responsiveness and external responsiveness of the Bridge Tests (supine bridge test, prone bridge test, and side bridge test) in relation to pain and disability, in subjects with subacute and chronic non-specific low back pain submitted to a physical therapy program.

Full description

Time 0 (first session of the physical therapy treatment program)

The physical therapist will explain to each patient the purpose of the study and request informed consent and data processing consent. In the informed consent form will be specified that the study will concern some diagnostic tests and the study protocol will not influence the physical therapy treatment strategy in any way. Only those who give their consent will be included in the study and will fill in a booklet containing:

• socio-demographical, anthropometric and pain data;
• the Italian version of the Oswestry Disability Index (ODI-I);
• the Italian version of the 0-100 Numerical Rating Scale (NRS). Once completed, the questionnaires will be placed in a sealed envelope and delivered to the examiner.

The physical therapist will perform the following tests, without being aware of the results collected during the initial clinical evaluation and will record the tests results on a pre-printed sheet, which will then be inserted in the same envelope as well.

The tests performed are (in order of execution):

• Aberrant Movements (AM) Test,
• Active Straight Leg Raise (ASLR) Test,
• Supine Bridge Test (SuBT),
• Right Side Bridge Test (RBT),
• Left Side Bridge Test (LBT),
• Prone Bridge Test (PrBT),
• Passive Lumbar Extension (PLE) Test,
• Prone Instability Test (PIT).

The envelope containing the patient's data and the results of the tests will be sent to an independent subject, who will take care of the data collection and their insertion into the electronic database, assigning to each patient a numerical code as the only identification element.

The patients will be submitted to a physical therapy treatment for eight 30-minutes sessions, once a week.

Time 1 (at the end of the last session of the physical therapy treatment)

Those who have completed the physical therapy treatment will receive a final booklet containing the Italian version of the Oswestry Disability Index (ODI-I), the Numerical Rating Scale (NRS) and the Global Perceived Effect (GPE) Questionnaire. Once completed, these questionnaires will be placed in a sealed envelope and delivered to the examiner.

Without being aware of the outcome of the questionnaires contained in the final booklet, the same tests will be repeated:

• Aberrant Movements (AM) Test,
• Active Straight Leg Raise (ASLR) Test,
• Supine Bridge Test (SuBT),
• Right Side Bridge Test (RBT),
• Left Side Bridge Test (LBT),
• Prone Bridge Test (PrBT),
• Passive Lumbar Extension (PLE) Test,
• Prone Instability Test (PIT).

Test results will be recorded on a pre-printed sheet, which will then be inserted in the same envelope and send to the independent subject who is responsible for data collection.

Enrollment: 139 patients

Sex: All

Ages: 18 to 80 years old

Volunteers: No Healthy Volunteers

Inclusion criteria

• Non-specific subacute or chronic low back pain (low back pain from 1 month or more, not related to specific pathologies);
• Low back pain, with or without irradiation to the lower limb, noted as ≥2 on a scale of 0-10;
• Good comprehension of written and spoken Italian Language;
• Informed consent.

Exclusion criteria

• Acute low back pain;
• Specific causes of low back pain (truma, herniated disc, vertebral deformity, fractures, dislocations);
• Central or peripheral neurologic signs;
• Systemic pathologies;
• Rheumatic disorders;
• Neuromuscular pathologies;
• Tumors;
• Cognitive deficits;
• Surgical interventions in the last six months prior to the study;
• Osteoporosis.

Trial design

139 participants in 1 patient group

Outpatients with low back pain

Description:

All outpatients with non-specific subacute or chronic low back pain will be submitted to a physical therapy program including: * information on pain mechanisms and the favorable nature of non-specific low back pain; * advice on positions, movements and activities recommended or advised against in people with low back pain, both at work and during leisure time; * active postural correction exercises, overactive muscles lengthening and weak musculature strengthening; * passive manual techniques, aimed at muscle relaxation and recovery of lumbar joint mobility. A cluster of Clinical tests to measure lumbar stability will be administrated before the starting of the first session and at the ending of the last session of the physical therapy program.

Treatment:

Diagnostic Test: Cluster of Clinical tests to measure lumbar stability