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	Katz Index of Independence in Activities of Daily Living	Кратна батерия за оценка на физическите възможности (SPPB)
Област	Social Gerontology	Геронтология
Семейство	Process / pipeline	Process / pipeline
Година на възникване	1963	1994
Създател	Sidney Katz and colleagues at the Benjamin Rose Hospital, Cleveland	Jack M. Guralnik
Тип	Ordered hierarchical index of basic self-care function	Performance-based assessment
Основополагащ източник	Katz, S., Ford, A. B., Moskowitz, R. W., Jackson, B. A., & Jaffe, M. W. (1963). Studies of illness in the aged. The index of ADL: a standardized measure of biological and psychosocial function. JAMA, 185(12), 914-919.	Guralnik, J. M., Simonsick, E. M., Ferrucci, L., et al. (1994). A short physical performance battery assessing lower extremity function: association with self-reported disability and prediction of mortality and nursing home admission. J Gerontol, 49(2), M85-M94.
Други названия	Katz ADL Index, Index of ADL, Katz Activities of Daily Living Scale, Katz Basic ADL Index	SPPB
Свързани	4	5
Резюме	The Katz Index of Independence in Activities of Daily Living, introduced by Sidney Katz and colleagues in 1963, is the foundational measure of basic self-care function in older and chronically ill adults. It rates whether a person can perform six fundamental activities — bathing, dressing, toileting, transferring, continence, and feeding — independently or with help, and summarizes them into a single index of functional status. Katz's central empirical observation was that these activities are lost in a consistent order, from the most complex and socially learned (bathing) to the most primitive (feeding), and recovered in the reverse order, so the index reflects an underlying organized process of disability rather than a random list of tasks. Decades after its introduction it remains the reference standard for basic activities of daily living and a building block of geriatric and rehabilitation assessment.	The Short Physical Performance Battery (SPPB) is a performance-based assessment developed by Guralnik and colleagues in 1994 at the National Institute on Aging to measure lower extremity physical function and functional mobility in older adults. It is widely used in clinical practice and epidemiological research to predict disability, institutionalization, and mortality in community-dwelling seniors.