Efectos de la Educación en Neurociencia del Dolor con Entrenamiento en Discriminación Sensorial entre Pacientes con Dolor Lumbar Crónico

Participants in the experimental group will receive a 45-minute intervention session consisting of three integrated components (Pain Neuroscience Education, Core Stability Exercises and Graded Sensory Discrimination Training )

Although both Pain Neuroscience Education and Sensory Discrimination Training have demonstrated potential benefits individually, there is a paucity of research evaluating their combined effects. Integrating cognitive (PNE) and sensorimotor (SDT) approaches may produce synergistic effects, improving pain modulation, functional capacity, and psychological resilience.

Participants in the control group will receive the same 45-minute sessions consisting of two components (Pain Neuroscience Education and Core Stability Exercises).

Participants in the control group will receive the same 45-minute sessions twice per week, but will not receive sensory discrimination training.

Pain catastrophizing refers to a maladaptive cognitive and emotional response to actual or perceived pain. Pain Catastrophizing is measured by the Pain Catastrophizing Scale. The Pain Catastrophizing Scale is a validated questionnaire used to measure the degree of catastrophic thinking in individuals experiencing pain (Sullivan et al. 1995). The scale consists of 13 items, each representing a different catastrophizing response. For each item, participants rate their experience using a 5-point Likert scale, where 0 = Not at all (the thought or feeling never occurred) and 4 = All the time (the thought or feeling occurred persistently). The total score ranges from 0 to 52, with higher scores indicating greater levels of pain catastrophizing.

Kinesiophobia is a debilitating fear of movement and physical activity due to the belief that movement will cause pain or re-injury. Kinesiophobia is measured by the Tampa Scale for Kinesiophobia. Tampa Scale for Kinesiophobia is the most widely used and validated tool to assess the fear of movement or re-injury. It contains 17 items. Each item is scored using a 4-point Likert scale with 1 = strongly disagree and 4 = strongly agree. Total score ranges from 17 to 68, with higher scores indicating greater kinesiophobia.

Functional movement refers to the basic movements that people need in daily life to perform normal activities safely and efficiently. These movements involve multiple joints and muscle groups working together in a coordinated way. Functional movements will be assessed using 2D motion analysis through the Kinovea software. Participants will perform two standardized tasks: forward bending and sit-to-stand. All movements will be recorded using a fixed camera positioned at a consistent height (e.g., 1.2 m) and distance (e.g., 2.5 m) from the participant. Kinovea will be used to extract trunk flexion angle, lumbar deviation from the midline, pelvic tilt angle and task completion time. Higher movement quality, reduced deviation, and faster task completion will be interpreted as improved functional performance.