Introduction: Currently, clinical practice guidelines recommend exercise as a first-line approach to the treatment of chronic low back pain (LBP). On the other hand, passive techniques such as cupping therapy have gained space in the management of this population, however, important gaps regarding the combination of cupping therapy with active exercises in individuals with nonspecific chronic low back pain are still present in the literature. In this context, this protocol describes a sham-controlled, randomized and blinded study that aims to evaluate the additional effects of cupping therapy in association with McKenzie method exercises on pain and functional outcomes of individuals with nonspecific chronic low back pain. Methods: 108 individuals with nonspecific and localized chronic low back pain in the age group of 18 to 59 years will be recruited and evaluated, regarding the inclusion and exclusion criteria. Subsequently, they will be randomized to one of 2 groups: intervention group, in which they will be submitted to the McKenzie method intervention and later the addition of the dry suction cup; and sham group, in which, after the intervention of the McKenzie method, the application of the sham cup will be added.
Individuals, male and female, 18 to 59 years, non-obese, with non-specific localized LBP for more than 3 months;
Report pain intensity between 3 and 8 according to the numerical pain scale;
Have previously performed cupping therapy in some body segment;
Present neurological, vestibular, visual or auditory deficits that make assessments impossible;
Being in the gestational period;
Having severe spinal disease (including fractures, tumour, inflammatory diseases, or tumours);
Parallel
Exercises and dry cupping
Other interventionParticipants in the intervention group will receive an assessment, classification as to MDT syndrome and indication of the preferred direction of movement, whether flexion, extension or lateral displacement of the spine
Change in Disability - ODI
The Oswestry Disability Index (ODI) questionnaire will be used to analyze disability in people with low back pain.This instrument contains 10 items that assess the impact of low back pain on various functional activities. Values range from 0 to 5, with the highest value indicating greater disability. The final result is the sum of all items. The validated version in Portuguese is used.
Change Numerical Pain Scale - NPS
The pain will be measured by the Numerical Pain Scale (NPS). Patients will be asked to circle the number between 0 and 10, zero represents "no pain", while the upper limit represents "the worst possible pain". The NPS score will be collected with the individual at rest, during the assessment of trunk range of motion and during the execution of the Timed Up and Go test.
Change in Functional test - Timed Up and Go (TUG)
Functional test: Timed Up and Go (TUG): is a functional test that quantifies the mobility of an individual in seconds through the time he performs the task, that is, how many seconds he gets up from a chair, walks 3 meters, turns, goes back to the chair and stands again. The test was primarily designed to assess risk of falls in the elderly, with the following scores: less than 20 seconds for performance, corresponding to low risk of falling, 20 to 29 seconds, medium risk of falls, and 30 seconds or more, a high risk of falling. The subject will take the test 3 times and the average of the 3 trials will be noted.
Change in Trunk range of motion - Range of motion (ROM)
Trunk range of motion: Range of motion (ROM) will be measured using the finger-to-floor test. It has high reliability and can be used for clinical practice and scientific studies.The finger-to-floor test is performed with the subject standing upright and with feet together. The participant will be asked to lean forward as much as possible, keeping the knees, arms and fingers fully extended. The vertical distance between the tip of the middle finger and the floor is measured with a tape measure.
Change in participant perception
The Brazilian version of the Global Perceived Effect Scale will assess participant self-perception of interventions. It uses a scale of 11 points ranging from a negative five (extremely worse) to a positive five (completely recovered) compared with baseline
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