The Impact of Resistance Training on Body Composition and Muscle Strength in Elderly Patients With Sarcopenia

Introduction: Sarcopenia is a progressive and widespread condition characterized by the loss of muscle mass and function, commonly seen among older adults. This condition leads to decreased functional capacity, a higher risk of falls, impaired independence in daily activities, and, implicitly, a significant decline in quality of life. Objective: This paper aims to show the effects of a resistance training program on body composition and muscle strength in elderly patients with sarcopenia. Material and Methods: This study involved 15 patients aged between 60 and 80, who were evaluated initially and after 3 months of training. We used body composition analysis by bioelectrical impedance (BIA), measured grip strength with manual dynamometry, and assessed patients' functional independence using the "Time Up and Go" (TUG) test. The intervention consisted of a resistance exercise program conducted over 12 weeks, with two weekly sessions, tailored to each patient's physical condition and specific needs. Results: After the training program, patients showed a significant increase in muscle mass measured by BIA, improved hand grip strength, and a notable decrease in execution time on the TUG test, demonstrating the intervention's effectiveness. Conclusions: Resistance training significantly boosts muscle mass and strength in elderly sarcopenic patients. It also improves balance and mobility, which are vital for maintaining independence. Therefore, resistance training should be a core part of prevention and treatment plans for sarcopenic patients. Article history: Received 2025 October 29; Revised 2025 November 20; Accepted 2025 December 05;Available online 2026 January 30; Available print 2026 January 30