Efficacy of Pain Science Education Combined With Exercise in Older Adults With Chronic Pain

During the course of the study, the following information will be collected, and the following types of tests and assessments will be carried out: Personal information and medical history. Physical condition assessments: 1. Functional assessment: the following tests will be conducted: Short Physical Performance Battery (SPPB) and Timed Up \& Go (TUG). 2. Muscle strength assessment: the following tests will be performed: handgrip strength test using a JAMAR dynamometer, five-times sit-to-stand test, and force-velocity profiling using an ADR Encoder. 3. Body composition assessment: will be obtained by bioelectrical impedance analysis (BIA), including measurements of body weight, body mass index (BMI), body fat, visceral fat, appendicular muscle mass, and appendicular mass index. Questionnaires: 1. Numerical Rating Scale for Pain (NRS) 2. Tampa Scale for Kinesiophobia (TSK-11SV) 3. Pain Catastrophizing Scale 4. Spanish version of the Graded Chronic Pain Scale 5. SF-12 Health Survey Quantitative Electroencephalography (qEEG): (Spectral domain (brain frequencies, absolute and relative power by band), functional connectivity indices (coherence between regions), topographical or localization indices, complexity or temporal dynamics indices). All assessments will be administered by a trained and blinded physiotherapist under optimal hygiene and safety conditions, using certified equipment and instruments.