Comparison of the Effectiveness of Protein Supplementation Combined with Resistance Training on Body Composition and Physical Function in Healthy Elderly Adults.

Background: The global population of individuals over 65 y is expected to reach 426 million by 2050. Aging is associated with a progressive loss of muscle mass, strength, and function, leading to sarcopenia and adverse outcomes such as physical disability and increased mortality. Interventions such as resistance training and protein supplementation have shown promise in mitigating these effects.