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	SARC-F Sarcopenia Screen	Tilburg Frailty Indicator
Field	Social Gerontology	Social Gerontology
Family	Latent structure	Latent structure
Year of origin	2013	2010
Originator	Theodore K. Malmstrom and John E. Morley (Saint Louis University)	Robbert J. J. Gobbens and colleagues (Tilburg University)
Type	Self-report sarcopenia case-finding questionnaire	Self-report multidimensional frailty screening questionnaire
Seminal source	Malmstrom, T. K., & Morley, J. E. (2013). SARC-F: A Simple Questionnaire to Rapidly Diagnose Sarcopenia. Journal of the American Medical Directors Association, 14(8), 531-532.	Gobbens, R. J. J., van Assen, M. A. L. M., Luijkx, K. G., Wijnen-Sponselee, M. T., & Schols, J. M. G. A. (2010). The Tilburg Frailty Indicator: Psychometric Properties. Journal of the American Medical Directors Association, 11(5), 344-355.
Aliases	SARC-F, SARC-F questionnaire, Strength Assistance Rising Climbing Falls screen	TFI, Tilburg Frailty Index, Integral Frailty Self-Report, Multidimensional Frailty Questionnaire
Related	3	3
Summary	SARC-F is a brief, five-item self-report questionnaire for case-finding of sarcopenia — the age-related loss of skeletal muscle mass and function — in older adults. Introduced by Theodore Malmstrom and John Morley in 2013, its name is an acronym for the five domains it assesses: Strength, Assistance in walking, Rising from a chair, Climbing stairs, and Falls. Each item is scored 0 to 2, giving a total from 0 to 10, and a score of 4 or higher signals likely sarcopenia and risk of poor functional outcomes. Because it requires no equipment, no clinician, and under a minute to complete, SARC-F is recommended by major consensus groups (including the European and Asian sarcopenia working groups) as the first step in sarcopenia case-finding, to be confirmed by muscle-strength and mass measurement.	The Tilburg Frailty Indicator (TFI) is a self-report questionnaire that measures frailty in older adults across three domains — physical, psychological, and social. Developed by Robbert Gobbens and colleagues at Tilburg University and published in 2010, it operationalizes an explicit 'integral conceptual model of frailty' in which frailty is a dynamic state arising from losses in one or more functioning domains, itself driven by life-course determinants such as age, sex, multimorbidity, and life events. Part A of the instrument records these determinants; Part B comprises 15 items that sum to a 0–15 frailty score, with a cut point of 5 commonly used to flag frailty. Unlike purely physical phenotypes, the TFI deliberately incorporates psychological (mood, anxiety, coping, cognition) and social (living alone, social relationships, support) components, reflecting the social-gerontological view that frailty is more than a biomedical syndrome.