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Validity and Reliability of the Turkish Version of the Low Back Activity Confidence Scale (Lobacs)

Completed
Conditions
Symptoms and Signs
Low Back Pain, Mechanical
Registration Number
NCT05927909
Lead Sponsor
Bursa City Hospital
Brief Summary

Patients will be recruited from the Outpatient Department of Physical Medicine and Rehabilitation, Kestel State Hospital, who have been diagnosed with mechanical LBP for the past 3 weeks (physical examination, neurological examination, spinal radiography and laboratory tests and other causes of LBP were excluded) and who have agreed to participate in the study. Sociodemographic data of patients who gave written informed consent will be recorded to ensure anonymity. Although no consensus has been reached on the cross-cultural adaptation of the questionnaires into different languages, this study will use the guidelines for self-report measurement provided by Beaton et al. Following the formation of the expert committee, the scale will be translated and the pre-form back-translated. Comparisons will be made with the translated versions and the final version of the scale will be created by taking into account the opinions of the preliminary group of participants.

The reliability, test-retest reliability, face validity and content validity of the scale will be assessed by the expert committee. In order to assess the concurrent validity of this scale, all participants will also complete the 'Oswestry Low Back Pain Disability Questionnaire' and the 'Quebec Low Back Pain Disability Questionnaire', which have been previously validated and reliable in Turkish.

The Oswestry Low Back Pain Disability Questionnaire consists of 10 items that assess activities of daily living. These are pain intensity, personal care, lifting, walking, sitting, standing, sleeping, social life, travelling and degree of change in pain. Each item has 6 options ranging from 0 to 5 points (12). The Quebec Low Back Pain Disability Questionnaire consists of 20 items assessing activities of daily living. Each item has 6 options ranging from 0-5 points.

The aim of this study was to evaluate the validity and reliability and the Turkish version of the Low Back Activity Confidence Scale (Lobacs).

Detailed Description

Patients will be recruited from the Outpatient Department of Physical Medicine and Rehabilitation, Kestel State Hospital, who have been diagnosed with mechanical LBP for the past 3 weeks (physical examination, neurological examination, spinal radiography and laboratory tests and other causes of LBP were excluded) and who have agreed to participate in the study. Sociodemographic data of patients who gave written informed consent will be recorded to ensure anonymity. Although no consensus has been reached on the cross-cultural adaptation of the questionnaires into different languages, this study will use the guidelines for self-report measurement provided by Beaton et al. Following the formation of the expert committee, the scale will be translated and the pre-form back-translated. Comparisons will be made with the translated versions and the final version of the scale will be created by taking into account the opinions of the preliminary group of participants.

The reliability, test-retest reliability, face validity and content validity of the scale will be assessed by the expert committee. In order to assess the concurrent validity of this scale, all participants will also complete the 'Oswestry Low Back Pain Disability Questionnaire' and the 'Quebec Low Back Pain Disability Questionnaire', which have been previously validated and reliable in Turkish.

The aim of this study was to evaluate the validity and reliability and the Turkish version of the Low Back Activity Confidence Scale (Lobacs).

Recruitment & Eligibility

Status
COMPLETED
Sex
All
Target Recruitment
150
Inclusion Criteria
  • Presence of mechanical low back pain for 3 weeks or more.
Exclusion Criteria
  • Duration of pain is less than 3 weeks,
  • Evidence of non-mechanical causes of low back pain on imaging or laboratory tests.
  • Inflammatory diseases.
  • History of major surgery in the last 3 months.

Study & Design

Study Type
OBSERVATIONAL
Study Design
Not specified
Primary Outcome Measures
NameTimeMethod
Low Back Activity Confidence Scale (Lobacs)baseline

The Low Back Activity Confidence Scale (LOBACS) is a self-report questionnaire comprising 15 items and three subscales: Functional Self-efficacy (FnSE), Self-regulatory Self-efficacy, and Exercise Self-efficacy (ExSE). Its purpose is to evaluate an individual's perceived functional ability and the impact of low back pain on their daily life and functional performance. The questionnaire employs an 11-point Likert scale, ranging from 0% (no confidence) to 100% (complete confidence), with 10% increments for each point. Scores can be calculated globally (e.g., average score of all items) or for specific domains (e.g., average score of items 1-7 for FnSE subscale). The total score can range from 0 to 100, where higher scores indicate greater self-efficacy.

The Oswestry Back Pain Disability Questionnairebaseline

The Oswestry Back Pain Disability Questionnaire comprises 10 items that inquire about various daily activities, including pain intensity, self-care, lifting, walking, sitting, standing, sleeping, social life, traveling, and the extent of pain-related changes. Each item presents six response options, scored on a scale of 0 to 5 points.

The Quebec back pain disability scale (QBPDS)baseline

The Quebec Back Pain Disability Scale consists of 20 daily activities that can be categorised into 6 types of activities: Sitting/standing, Walking, Moving, Bending, Bed/resting, Handling large/heavy objects. For each activity there are 6 response scores on a Likert scale from 0-5 (0 = no effort, 5 = unable). If the person feels really bad, they give it a score of 5. If they feel good with no problems, they give it a score of 0.

Secondary Outcome Measures
NameTimeMethod

Trial Locations

Locations (1)

Bursa Kestel State Hospital

🇹🇷

Bursa, Turkey

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