Sarcopenia and its determinants among Iranian elderly (SARIR): study protocol.

Area of Science:

• Gerontology and Public Health
• Geriatric Medicine
• Nutritional Science

Background:

• Global increase in elderly populations necessitates focus on senior health and independence.
• Aging is associated with body composition changes, including muscle mass loss (sarcopenia), leading to functional impairment.
• Sarcopenia definitions vary; the European Working Group's 2010 definition considers muscle mass and function.

Purpose of the Study:

• To evaluate sarcopenia prevalence and associated risk factors in Iranian elderly using the new definition.
• To establish a baseline for sarcopenia research in Iran, a country with a rapidly growing elderly population.

Main Methods:

• Two-phase study in Tehran elderly (≥55 years): cross-sectional for frequency, case-control for metabolic/inflammatory factors.
• Case finding for the second phase.
• Factor analysis to assess the association between sarcopenia and dietary patterns.

Main Results:

• This section is to be filled after the study is conducted.

Conclusions:

• This study is the first to assess sarcopenia and risk factors in Iranian elders.
• Detailed methodology for data collection, measurement of muscle parameters, and defining sarcopenia in the Iranian context will be discussed.
• Results aim to guide health policy for elderly well-being and quality of life.