Outcome
Type |
Measure |
Description |
Time frame |
Safety issue |
Primary |
Changes in low back pain intensity with Numeric Pain Rating Scale (NPRS) |
This tool is an eleven-point pain scale numbered from zero to 10. The left end of the scale corresponds to zero and is marked as "No pain", whereas the right end corresponds to 10 and is marked as "Maximum pain". Consequently, a higher value indicates more intense pain. The examinee is asked to choose an integer that best reflects the intensity of their pain. The NPRS is widely used to measure pain in both clinical practice and research, showing high test-retest reliability and high conceptual construct validity. |
pre-intervention, 4th week, 6-month follow-up |
|
Primary |
Changes in Pressure Pain Threshold (PPT) with pressure algometry |
Pressure pain threshold (PPT) is defined as the minimal amount of pressure that produces pain. PPT will be assessed by a digital algometer and will be evaluated bilaterally in the quadratus lumborum muscle, in the sacroiliac joints, and paravertebrally in the L4-L5 intervertebral space. The metal rod of the algometer will be placed vertically on the site and the examiner will apply gradually increasing pressure at a rate of 1Kg/s. PPT is calculated in kg/cm2 (Imamura et al., 2016). |
pre-intervention, 4th week, 6-month follow-up |
|
Primary |
Changes in functional capacity with the Greek Version of Roland-Morris Disability Questionnaire (RMDQ) |
The functional ability of the participants will be evaluated with the Greek version of the Roland-Morris questionnaire, which consists of 24 questions related to daily activities that patients often report difficulty performing due to low back pain. Each positive answer earns one point and the final score is calculated by adding all the points. Therefore, the higher the score, the greater the restriction. The Greek version of the questionnaire shows satisfactory reliability and validity (ICC: 0.44-0.92) (Boscainos et al., 2003). |
pre-intervention, 4th week, 6-month follow-up |
|
Primary |
Changes in Kinesiophobia with Tampa Scale for Kinesiophobia (TSK) |
The assessment of kinesiophobia will be conducted using the Tampa Scale for Kinesiophobia (TSK), a 17-item questionnaire specifically designed to evaluate fear of movement and re-injury. This scale incorporates parameters related to injury and re-injury, as well as fear-avoidance behaviors in work-related activities. Participants rate each item on a 4-point Likert-type scale, ranging from 1 (definitely disagree) to 4 (completely agree). The total score on the TSK falls within the range of 17 to 68 points, with higher scores indicating a greater level of kinesiophobia. The minimal clinically important difference (MCID) for the TSK is reported to be 8 points. |
pre-intervention, 4th week, 6-month follow-up |
|
Primary |
Changes in Fear- Avoidance behaviour with Fear- Avoidance Beliefs Questionnaire (FABQ) |
The Fear-Avoidance Beliefs Questionnaire (FABQ) is a widely used assessment tool designed to measure individuals' beliefs about how physical activity and work-related activities may impact their pain and disability. It consists of fourteen items, which are scored on a 7-point Likert-type scale, ranging from "completely disagree" to "completely agree." The total score ranges from 0 to 96, with higher scores indicating stronger fear-avoidance beliefs. |
pre-intervention, 4th week, 6-month follow-up |
|
Primary |
Changes in Catastrophizing with Pain-Catastrophizing-Scale (PCS) |
The Pain Catastrophizing Scale (PCS) is a widely utilized self-report questionnaire designed to assess the extent to which individuals engage in catastrophic thinking when experiencing pain. The PCS consists of 13 items, each describing different thoughts and feelings that individuals may experience when in pain. Participants rate the extent to which they experience each statement on a 5-point Likert-type scale, ranging from "not at all" to "all the time." The scale encompasses three main dimensions of catastrophizing: rumination, magnification, and helplessness. |
pre-intervention, 4th week, 6-month follow-up |
|
Primary |
Changes in Performance was assessed using the Back Performance Scale (BPS) |
Performance will be assessed using the Back Performance Scale (BPS) described by Strand, Moe-Nilssen, and Ljunggren (2002). The BPS includes 5 tests of trunk mobility (sock test, pick-up test, roll-up test, fingertip-to-floor test, and lift test). Each test is scored from 0 to 3 based on the observed level of physical performance, and total score ranges from 0 to 15 points. High score indicates poor performance. |
pre-intervention, 4th week, 6-month follow-up |
|