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A eficacia de uma intervencao educacional baseada em teoria na promocao do comportamento relacionado a atividade fisica em pacientes com dor lombar cronica: um estudo controlado randomizado baseado em centro de saude (TRA -BAC) (The effectiveness of a theory-based educational intervention on promoting physical activity-related behavior in patients with chronic low back pain: a randomized controlled trial based on health center (TRA-BAC)) [Portugese]
Delshad MH, Hidarnia A, Pourhaji F
Scientia Medica 2024;34(1):e45567
clinical trial
6/10 [Eligibility criteria: Yes; Random allocation: Yes; Concealed allocation: Yes; Baseline comparability: Yes; Blind subjects: No; Blind therapists: No; Blind assessors: No; Adequate follow-up: Yes; Intention-to-treat analysis: No; Between-group comparisons: Yes; Point estimates and variability: Yes. Note: Eligibility criteria item does not contribute to total score] *This score has been confirmed*

AIMS: This study aimed to evaluate the effectiveness of a Theory of Reasoned Action (TRA) -based educational program in promoting physical activity (PA) behavior in Chronic low back pain (cLBP) patients. METHODS: The Reasoned Action Theory-based Back Care program was a randomized controlled trial conducted at a Health Service Center. It compared the TRA construct's effectiveness against a control group. Eighty patients referred to Shahid Beheshti University of Medical Sciences in Tehran were randomly assigned to either the TRA-based intervention group (n = 40) or the control group (n = 40). Both groups completed self-reported questionnaires at baseline, 3-month, and 6-month follow-ups. Additionally, a checklist was used to assess lumbar spine range of motion test skills using the modified Schober test. RESULTS: A significant interaction effect was observed between group and test time factors (p < 0.001). A total of 77 cLBP patients were evaluated, with a mean age of 41.0 +/- 4.2 years in the intervention group and 39.0 +/- 3.5 years in the control group. While both groups initially aligned with TRA constructs (p > 0.05), the intervention group demonstrated significant improvements in PA-related behavior at both 3-month (p < 0.001) and 6-month (p < 0.001) follow-ups. The mean score for PA behavior in the intervention group (8.4 +/- 1.1) was significantly higher compared to the control group (3.2 +/- 1.0) (p < 0.001). Similarly, pain intensity was significantly lower in the intervention group (3.8 +/- 2.2) compared to the control group (4.3 +/- 3.0) (p < 0.001). Furthermore, the intervention group showed a significant improvement in lumbar spine range of motion test skills (p < 0.05). The lumbar spine range of motion test skills of the intervention group significantly decreased (p < 0.05). CONCLUSIONS: The TRA-BAC program demonstrates promise in improving PA-related behavior and reducing pain in cLBP patients through targeted educational strategies based on the TRA framework.

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