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dc.contributor.authorRamel, Alfons
dc.contributor.authorArnarson, Atli
dc.contributor.authorGeirsdottir, Olof G
dc.contributor.authorJonsson, Palmi V
dc.contributor.authorThorsdottir, Inga
dc.date.accessioned2014-07-03T15:09:09Z
dc.date.available2014-07-03T15:09:09Z
dc.date.issued2013-05
dc.date.submitted2014
dc.identifier.citationNutrition 2013, 29 (5):719-23en
dc.identifier.issn1873-1244
dc.identifier.pmid23317926
dc.identifier.doi10.1016/j.nut.2012.10.002
dc.identifier.urihttp://hdl.handle.net/2336/322355
dc.descriptionTo access publisher's full text version of this article click on the hyperlink at the bottom of the pageen
dc.description.abstractIncreased protein intake and resistance exercise can be beneficial for maintenance of lean body mass (LBM) in older adults. However, these factors could also negatively affect renal function. We investigated changes in renal function after a 12-wk resistance exercise program combined with protein supplementation in community dwelling older adults.
dc.description.abstractPatients (N = 237, 73.7 ± 5.7 y, 58.2% female) participated in a 12-wk resistance exercise program (3 times/wk) designed to increase strength and muscle mass of major muscle groups. Participants were randomly assigned to one of three dietary supplements consumed directly after training: whey protein drink (20 g whey protein, 20 g carbohydrates), milk protein drink (20 g milk protein, 20 g carbohydrates), or carbohydrate drink (40 g carbohydrates). Renal function was estimated as glomerular filtration rate (GFR, Cockcroft-Gault formula), and dietary intake was measured as 3-d-weighed food record at baseline and endpoint.
dc.description.abstractDuring the intervention, energy intake did not increase. Carbohydrate intake increased in the carbohydrate group and protein intake increased in the milk group, both approximately in accordance with the supplementation. In the whey group, protein intake did not increase, but carbohydrate intake did. GFR increased after the intervention (+4.4 mL/min/1.73 m2; P < 0.001), and the changes were similar in men and women or in the age quartiles. Changes in GFR at endpoint were not associated with LBM, dietary supplements, or total protein intake.
dc.description.abstractA 12-wk resistance exercise program combined with protein supplementation in community dwelling older adults does not negatively affect GFR. The supplementation had only minor effects on total dietary intake.
dc.description.sponsorshipIcelandic Technology Development Fund/ 071323008 University of Iceland Landspitali University Hospital Helga Jonsdottir and Sigurlidi Kristjansson Geriatric Research Funden
dc.language.isoenen
dc.publisherElsevier Science Incen
dc.relation.urlhttp://dx.doi.org/10.1016/j.nut.2012.10.002en
dc.rightsArchived with thanks to Nutrition (Burbank, Los Angeles County, Calif.)en
dc.subjectMataræðien
dc.subjectPrótínen
dc.subjectMjólken
dc.subjectLíkamsrækten
dc.subjectNýruen
dc.subjectDrykkiren
dc.subjectAldraðiren
dc.subjectLyftingaren
dc.subject.meshAgeden
dc.subject.meshAged, 80 and overen
dc.subject.meshAnimalsen
dc.subject.meshBeveragesen
dc.subject.meshDieten
dc.subject.meshDietary Carbohydratesen
dc.subject.meshDietary Proteinsen
dc.subject.meshDietary Supplementsen
dc.subject.meshEnergy Intakeen
dc.subject.meshExerciseen
dc.subject.meshFemaleen
dc.subject.meshGlomerular Filtration Rateen
dc.subject.meshHumansen
dc.subject.meshKidneyen
dc.subject.meshMaleen
dc.subject.meshMilken
dc.subject.meshMilk Proteinsen
dc.subject.meshResistance Trainingen
dc.subject.meshWeight Liftingen
dc.titleGlomerular filtration rate after a 12-wk resistance exercise program with post-exercise protein ingestion in community dwelling elderly.en
dc.typeArticleen
dc.contributor.departmentUniv Iceland, Natl Univ Hosp, Unit Nutr Res, Reykjavik, Iceland, Univ Iceland, Fac Food Sci & Nutr, Reykjavik, Iceland, Univ Iceland, Natl Univ Hosp, Iceland Gerontol Res Ctr, Reykjavik, Iceland, Univ Iceland, Fac Med, Reykjavik, Iceland, Univ Iceland, Natl Univ Hosp, Dept Geriatr, Reykjavik, Icelanden
dc.identifier.journalNutrition (Burbank, Los Angeles County, Calif.)en
dc.rights.accessLandspitali Access - LSH-aðganguren
html.description.abstractIncreased protein intake and resistance exercise can be beneficial for maintenance of lean body mass (LBM) in older adults. However, these factors could also negatively affect renal function. We investigated changes in renal function after a 12-wk resistance exercise program combined with protein supplementation in community dwelling older adults.
html.description.abstractPatients (N = 237, 73.7 ± 5.7 y, 58.2% female) participated in a 12-wk resistance exercise program (3 times/wk) designed to increase strength and muscle mass of major muscle groups. Participants were randomly assigned to one of three dietary supplements consumed directly after training: whey protein drink (20 g whey protein, 20 g carbohydrates), milk protein drink (20 g milk protein, 20 g carbohydrates), or carbohydrate drink (40 g carbohydrates). Renal function was estimated as glomerular filtration rate (GFR, Cockcroft-Gault formula), and dietary intake was measured as 3-d-weighed food record at baseline and endpoint.
html.description.abstractDuring the intervention, energy intake did not increase. Carbohydrate intake increased in the carbohydrate group and protein intake increased in the milk group, both approximately in accordance with the supplementation. In the whey group, protein intake did not increase, but carbohydrate intake did. GFR increased after the intervention (+4.4 mL/min/1.73 m2; P < 0.001), and the changes were similar in men and women or in the age quartiles. Changes in GFR at endpoint were not associated with LBM, dietary supplements, or total protein intake.
html.description.abstractA 12-wk resistance exercise program combined with protein supplementation in community dwelling older adults does not negatively affect GFR. The supplementation had only minor effects on total dietary intake.


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