Study Protocol and Operational Description
- Rationale and Study Justification Despite updated clinical guidelines that prioritize active interventions, such as therapeutic exercise and pain education, these interventions are not widely implemented in primary care settings. The discrepancy between evidence and practice presents a clear opportunity for improvement. Adopting structured programs based on scientific evidence promotes a consistent, efficient approach aligned with the biopsychosocial model. Consequently, this clinical trial aims to generate high-quality evidence in the primary care context to evaluate the effectiveness and efficiency of these care models. This will facilitate their implementation and advance us toward a more accessible and sustainable healthcare system.
- Study Design and Randomization This multicenter, randomized, single-blind, controlled clinical trial has a three-arm parallel group design. After recruitment at the Primary Care Physiotherapy Units (PCPUs) of the Castilla y León Health Service (SACYL) and informed consent is signed, participants with subacute or chronic nonspecific low back pain will be randomly assigned to one of three study groups.
- Description of the Intervention Arms All active intervention protocols will be carried out over a period of eight weeks.
Online Therapeutic Exercise and Education (ETEO): Participants will engage in an eight-week, home-based therapeutic exercise program combined with pain neuroscience education. All content, instructional materials, and compliance monitoring will be delivered via a dedicated digital platform.
Face-to-Face Therapeutic Exercise and Education (ETEP): Participants will receive the same 8-week exercise and education curriculum through in-person, group sessions at participating PCPUs.
Conventional Treatment (CT): Participants will receive standard physiotherapy care as routinely provided within the public regional health service framework.
- Assessment Timeline and Outcome Measures Blinded evaluators will perform data collection and clinical measurements at three specific time points: baseline (T0), immediately post-intervention at eight weeks (T1), and at the three-month long-term follow-up (T2).
Primary Outcome Measure: Functional disability, quantified using the Oswestry Disability Index (ODI).
- Secondary Outcome Measures: Pain intensity, activity avoidance, pain catastrophizing, kinesiophobia, anxiety and depression symptoms, health-related quality of life, patient beliefs/knowledge regarding low back pain, and overall satisfaction with the intervention.