title: Successful aging and frailty: mutually exclusive paradigms or two ends of a shared continuum?
abstract: The conceptualization of positive and negative states of aging is contentious at the inter- and intraparadigm level; lack of consensus exists within and between states. Working within their respective paradigms, successful aging and frailty researchers may have lost sight of the larger picture. Are successful aging researchers describing nonfrail individuals? Are frailty researchers describing unsuccessful aging? It is imperative that researchers are cognizant of the ways in which their perspectives are contextualized within the literature and within related paradigms, so as to be able to clearly communicate their research and to ensure they are working within the appropriate paradigm to facilitate desired outcomes. Here we discuss the similarities and differences between successful aging and frailty in terms of the scope and emphasis of their constituent components and functioning: both SA and frailty include biomedical components; SA examines the high end, whilst frailty predominately examines the low end of the functioning spectrum. Frailty models emphasize the biomedical realm, whilst SA models emphasize both the biomedical and the psychosocial.
authors.affiliation: Cambridge Institute of Public Health, Department of Public Health and Primary Care, University of Cambridge, Cambridge, UK;
authors.forename: Theodore D
authors.initials: TD
authors.lastname: Cosco
authors.affiliation: Geriatric Medicine Research, Division of Geriatric Medicine, Dalhousie University, Halifax, Canada;
authors.forename: Joshua J
authors.initials: JJ
authors.lastname: Armstrong
authors.affiliation: Institute of Health and Society, Newcastle University, Newcastle upon Tyne, UK.
authors.forename: Blossom C M
authors.initials: BC
authors.lastname: Stephan
authors.affiliation: Cambridge Institute of Public Health, Department of Public Health and Primary Care, University of Cambridge, Cambridge, UK;
authors.forename: Carol
authors.initials: C
authors.lastname: Brayne
keywords: conceptualization; frailty; models of aging; successful aging
references.citation: J Gerontol A Biol Sci Med Sci. 2001 Mar;56(3):M146-56
references.pmid: 11253156
references.citation: Int Psychogeriatr. 2014 Mar;26(3):373-81
references.pmid: 24308764
references.citation: Science. 1987 Jul 10;237(4811):143-9
references.pmid: 3299702
references.citation: J Nutr Health Aging. 2010 Mar;14(3):175-81
references.pmid: 20191249
references.citation: Ageing Res Rev. 2011 Jan;10(1):104-14
references.pmid: 20850567
references.citation: BMJ Open. 2013 Jun 20;3(6):null
references.pmid: 23794575
references.citation: J Appl Gerontol. 2013 Apr;32(3):275-6
references.pmid: 25474389