Impact of exercise in community-dwelling older adults.

<h4>Background</h4>Concern has been expressed that preventive measures in older people might increase frailty by increasing survival without improving health. We investigated the impact of exercise on the probabilities of health improvement, deterioration and death in community-dwelling...

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Autores principales:	Ruth E Hubbard, Nader Fallah, Samuel D Searle, Arnold Mitnitski, Kenneth Rockwood
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2009
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/db131b4701f747a390bd0fddc8cb2246
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spelling	oai:doaj.org-article:db131b4701f747a390bd0fddc8cb22462021-11-25T06:21:43ZImpact of exercise in community-dwelling older adults.1932-620310.1371/journal.pone.0006174https://doaj.org/article/db131b4701f747a390bd0fddc8cb22462009-07-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/19584926/?tool=EBIhttps://doaj.org/toc/1932-6203<h4>Background</h4>Concern has been expressed that preventive measures in older people might increase frailty by increasing survival without improving health. We investigated the impact of exercise on the probabilities of health improvement, deterioration and death in community-dwelling older people.<h4>Methods and principal findings</h4>In the Canadian Study of Health and Aging, health status was measured by a frailty index based on the number of health deficits. Exercise was classified as either high or low/no exercise, using a validated, self-administered questionnaire. Health status and survival were re-assessed at 5 years. Of 6297 eligible participants, 5555 had complete data. Across all grades of frailty, death rates for both men and women aged over 75 who exercised were similar to their peers aged 65 to 75 who did not exercise. In addition, while all those who exercised had a greater chance of improving their health status, the greatest benefits were in those who were more frail (e.g. improvement or stability was observed in 34% of high exercisers versus 26% of low/no exercisers for those with 2 deficits compared with 40% of high exercisers versus 22% of low/no exercisers for those with 9 deficits at baseline).<h4>Conclusions</h4>In community-dwelling older people, exercise attenuated the impact of age on mortality across all grades of frailty. Exercise conferred its greatest benefits to improvements in health status in those who were more frail at baseline. The net effect of exercise should therefore be to improve health status at the population level.Ruth E HubbardNader FallahSamuel D SearleArnold MitnitskiKenneth RockwoodPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 4, Iss 7, p e6174 (2009)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Ruth E Hubbard Nader Fallah Samuel D Searle Arnold Mitnitski Kenneth Rockwood Impact of exercise in community-dwelling older adults.
description	<h4>Background</h4>Concern has been expressed that preventive measures in older people might increase frailty by increasing survival without improving health. We investigated the impact of exercise on the probabilities of health improvement, deterioration and death in community-dwelling older people.<h4>Methods and principal findings</h4>In the Canadian Study of Health and Aging, health status was measured by a frailty index based on the number of health deficits. Exercise was classified as either high or low/no exercise, using a validated, self-administered questionnaire. Health status and survival were re-assessed at 5 years. Of 6297 eligible participants, 5555 had complete data. Across all grades of frailty, death rates for both men and women aged over 75 who exercised were similar to their peers aged 65 to 75 who did not exercise. In addition, while all those who exercised had a greater chance of improving their health status, the greatest benefits were in those who were more frail (e.g. improvement or stability was observed in 34% of high exercisers versus 26% of low/no exercisers for those with 2 deficits compared with 40% of high exercisers versus 22% of low/no exercisers for those with 9 deficits at baseline).<h4>Conclusions</h4>In community-dwelling older people, exercise attenuated the impact of age on mortality across all grades of frailty. Exercise conferred its greatest benefits to improvements in health status in those who were more frail at baseline. The net effect of exercise should therefore be to improve health status at the population level.
format	article
author	Ruth E Hubbard Nader Fallah Samuel D Searle Arnold Mitnitski Kenneth Rockwood
author_facet	Ruth E Hubbard Nader Fallah Samuel D Searle Arnold Mitnitski Kenneth Rockwood
author_sort	Ruth E Hubbard
title	Impact of exercise in community-dwelling older adults.
title_short	Impact of exercise in community-dwelling older adults.
title_full	Impact of exercise in community-dwelling older adults.
title_fullStr	Impact of exercise in community-dwelling older adults.
title_full_unstemmed	Impact of exercise in community-dwelling older adults.
title_sort	impact of exercise in community-dwelling older adults.
publisher	Public Library of Science (PLoS)
publishDate	2009
url	https://doaj.org/article/db131b4701f747a390bd0fddc8cb2246
work_keys_str_mv	AT ruthehubbard impactofexerciseincommunitydwellingolderadults AT naderfallah impactofexerciseincommunitydwellingolderadults AT samueldsearle impactofexerciseincommunitydwellingolderadults AT arnoldmitnitski impactofexerciseincommunitydwellingolderadults AT kennethrockwood impactofexerciseincommunitydwellingolderadults
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Impact of exercise in community-dwelling older adults.

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