Reliability of Muscle Strength and Activation Assessment Tools and Effects of an Online Therapeutic Exercise Program in Patients With Chronic Kidney Disease

Patients with chronic kidney disease experience progressive muscle weakness and reduced physical capacity due to systemic inflammation, metabolic acidosis, and inactivity. This two-phase observational and interventional study, conducted in collaboration with the ALCER Association (Badajoz and Cáceres, Spain), will: 1. Determine the test-retest reliability of muscle assessment tools (isokinetic dynamometer, surface electromyography, and handheld dynamometry). 2. Implement and evaluate an online therapeutic exercise program supervised by physiotherapists. The project aims to provide valid and reliable protocols for neuromuscular assessment in CKD patients and explore the feasibility of remote therapeutic exercise.