Clinical Research Directory

Inclusion Criteria: * be 60 years or older; * have chronic musculoskeletal pain, defined as pain that persists for more than three months and is felt in the muscles, bones, joints, or tendons at least once a week; * know how to use a computer and/or a tablet; iv) have a score of 3 or higher on the Numerical Pain Scale for average pain intensity over the past week; * show no cognitive impairment, as determined by the Montreal Cognitive Assessment (MoCA) (validated and with normative data for the Portuguese population) and be available to participate in the study. The MoCA cutoff scores for the absence of cognitive impairment to be considered are adjusted for the participants' age and educational level \[primary school (1-4 years), middle school (5-9 years), high school (10-12 years), and college (\>12 years)\], with 1.5 standard deviations: i) Ages 60-69: elementary school - 17 points, middle school - 21 points, high school and college - 22 points; ii) Ages 70-79: elementary school - 15 points, middle school - 18 points, high school - 20 points, and college - 22 points; iii) Over 80 years old: elementary school - 12 points, middle school - 22 points, high school - 17 points, and college - 19 points. Exclusion Criteria: * inability to read; * pain associated with serious conditions (e.g., tumors, fractures); * any acute, unstable, or decompensated medical conditions that prevent safe physical exercise. Examples include cardiovascular diseases (recent acute myocardial infarction, unstable angina, uncontrolled cardiac arrhythmias, severe symptomatic aortic stenosis, symptomatic or unstable heart failure, acute myocarditis or pericarditis, acute aortic dissection, active endocarditis, uncontrolled hypertension), respiratory conditions (acute pulmonary embolism, pulmonary infarction, chronic obstructive pulmonary disease, uncontrolled asthma, or recent respiratory exacerbations), metabolic conditions (uncontrolled diabetes mellitus), neurological conditions (stroke, traumatic brain injury, Parkinson's disease), or acute systemic infection. * In addition, participants will be screened according to the American College of Sports Medicine's Preparticipation Health Screening algorithm