Protein Supplements Boost Resistance Training Benefits in Hospitalized Older Adults

This randomized controlled trial examined whether protein supplementation could enhance resistance training benefits in hospitalized older adults with sarcopenia. The study addressed a critical healthcare challenge: older patients often experience rapid muscle loss during hospital stays, leading to prolonged recovery and increased frailty.

Researchers enrolled 165 participants and provided either protein-enriched milk-based supplements or placebo alongside resistance training programs. The intervention continued during hospitalization and extended 12 weeks post-discharge, recognizing that recovery extends well beyond hospital walls.

The study measured multiple outcomes including muscle strength, muscle mass, and physical functioning to comprehensively assess intervention effectiveness. Researchers also evaluated participant acceptance of the protein supplement and conducted cost-effectiveness analyses to determine real-world implementation feasibility.

A notable sub-study with 30 participants compared bio-impedance analysis (BIA) to the gold-standard DXA scan for measuring body composition changes. This comparison could validate more accessible, portable methods for tracking muscle mass in clinical settings. Additionally, researchers assessed sarcopenia prevalence and its correlation with nutritional status in 120 participants.

Completed in 2018 after two years of enrollment, this trial provides valuable insights into preventing hospital-associated muscle loss in aging populations. The combination of resistance training with targeted protein supplementation represents a practical, implementable strategy that hospitals could adopt to improve patient outcomes and reduce healthcare costs associated with prolonged recovery periods.