[Sarcopenia intervention with progressive resistance training and protein nutritional supplements]

Area of Science:

• Gerontology
• Exercise Physiology
• Nutritional Science

Background:

• Aging leads to muscle mass reduction (sarcopenia), increasing functional limitations in older adults.
• Lifestyle factors significantly influence age-related body composition changes.

Purpose of the Study:

• To evaluate the efficacy of progressive resistance training (PRT) and protein nutritional supplements in treating sarcopenia.
• To assess the combined effect of PRT and protein supplementation on sarcopenia.

Main Methods:

• A comprehensive literature review was conducted across major databases (Medline, ScienceDirect, CINAHL, ISI WOK, PEDro).
• Search terms included MeSH descriptors for sarcopenia, PRT, protein supplements, and seniors.

Main Results:

• PRT (45-60 min, 2-3 times/week, 3-4 sets, 8 reps) increased muscle mass, strength, protein synthesis, and fiber size.
• Protein supplements (beta-hydroxy-beta-methylbutyrate, leucine, essential amino acids) also increased muscle mass and strength.
• Combined PRT and protein supplementation demonstrated synergistic effects on muscle gains and strength.

Conclusions:

• The combination of PRT and dietary protein (via supplements) significantly enhances sarcopenia treatment outcomes in the elderly.
• This integrated strategy amplifies the benefits of each intervention for improving muscle health in aging populations.