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dc.contributor.authorGeirsdottir, O G
dc.contributor.authorArnarson, A
dc.contributor.authorBriem, K
dc.contributor.authorRamel, A
dc.contributor.authorTomasson, K
dc.contributor.authorJonsson, P V
dc.contributor.authorThorsdottir, I
dc.date.accessioned2012-08-14T13:30:32Z
dc.date.available2012-08-14T13:30:32Z
dc.date.issued2012-01
dc.date.submitted2012-08-14
dc.identifier.citationJ. Nutr. Health. Aging 2012, 16(1):62-6en_GB
dc.identifier.issn1760-4788
dc.identifier.pmid22238003
dc.identifier.urihttp://hdl.handle.net/2336/238444
dc.descriptionTo access full text version of this article. Please click on the hyperlink "View/open" at the bottom of this pageen_GB
dc.description.abstractLittle is known about the effects of resistance training on health related quality of life (HRQL) in the elderly. The main purpose of the study was to investigate the effects of resistance training on strength, body composition, functional capacity and HRQL in independent living elderly people. We hypothesised that resistance training would improve lean mass, muscle strength, physical function and HRQL. Subjects (N = 237, 73.7±5.7 yrs, 58.2% female) participated in a 12-week resistance exercise program (3 times/week; 3 sets, 6-8 repetitions at 75-80% of the 1-repetition maximum) designed to increase strength and muscle mass of major muscle groups. Body composition, quadriceps- and grip strength, timed up and go test (TUG), six minute walk for distance (6MW) and HRQL were measured at baseline and endpoint. Two hundred-and-four participants completed the study. Although the increase in lean mass was small (+0.8 kg, P<0.01), quadriceps strength (+53.5 N), grip strength (+3.0 lb), TUG (-0.6 sec), 6MW (+33.6 m) and HRQL (+1.2 t-score) improved significantly (all P<0.01). Changes in 6MW predicted improvement in HRQL after 12 weeks. Our study shows that a 12-week resistance exercise program significantly improves lean mass, muscle strength, physical function and HRQL in elderly individuals, and that improvements in physical function predict improvements in HRQL. Our study indicates that resistance training should be promoted for the elderly as it has the potential to improve physical performance, thereby prolonging healthy, independent aging.
dc.description.sponsorshipIcelandic Technology Development Fund 071323008, University of Iceland, Landspitali University Hospital, Helga Jonsdottir and Sigurlidi Kristjansson, Geriatric Research Fund,en_GB
dc.language.isoenen
dc.rightsArchived with thanks to The journal of nutrition, health & agingen_GB
dc.subject.meshActivities of Daily Livingen_GB
dc.subject.meshAgeden_GB
dc.subject.meshBody Compositionen_GB
dc.subject.meshBody Fluid Compartmentsen_GB
dc.subject.meshFemaleen_GB
dc.subject.meshGeriatric Assessmenten_GB
dc.subject.meshHand Strengthen_GB
dc.subject.meshHealth Statusen_GB
dc.subject.meshHumansen_GB
dc.subject.meshIcelanden_GB
dc.subject.meshMaleen_GB
dc.subject.meshMovementen_GB
dc.subject.meshMuscle Strengthen_GB
dc.subject.meshMuscle, Skeletalen_GB
dc.subject.meshPhysical Fitnessen_GB
dc.subject.meshQuality of Lifeen_GB
dc.subject.meshResistance Trainingen_GB
dc.titlePhysical function predicts improvement in quality of life in elderly Icelanders after 12 weeks of resistance exercise.en
dc.typeArticleen
dc.contributor.departmentUnit for Nutrition Research, Landspitali The National University Hospital of Iceland, Reykjavik, Iceland.en_GB
dc.identifier.journalJournal of nutrition, health & agingen_GB
dc.rights.accessNational Consortium - Landsaðganguren
dc.type.categoryÖldrunarlækn, Næringarfræðien_GB
html.description.abstractLittle is known about the effects of resistance training on health related quality of life (HRQL) in the elderly. The main purpose of the study was to investigate the effects of resistance training on strength, body composition, functional capacity and HRQL in independent living elderly people. We hypothesised that resistance training would improve lean mass, muscle strength, physical function and HRQL. Subjects (N = 237, 73.7±5.7 yrs, 58.2% female) participated in a 12-week resistance exercise program (3 times/week; 3 sets, 6-8 repetitions at 75-80% of the 1-repetition maximum) designed to increase strength and muscle mass of major muscle groups. Body composition, quadriceps- and grip strength, timed up and go test (TUG), six minute walk for distance (6MW) and HRQL were measured at baseline and endpoint. Two hundred-and-four participants completed the study. Although the increase in lean mass was small (+0.8 kg, P<0.01), quadriceps strength (+53.5 N), grip strength (+3.0 lb), TUG (-0.6 sec), 6MW (+33.6 m) and HRQL (+1.2 t-score) improved significantly (all P<0.01). Changes in 6MW predicted improvement in HRQL after 12 weeks. Our study shows that a 12-week resistance exercise program significantly improves lean mass, muscle strength, physical function and HRQL in elderly individuals, and that improvements in physical function predict improvements in HRQL. Our study indicates that resistance training should be promoted for the elderly as it has the potential to improve physical performance, thereby prolonging healthy, independent aging.


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