Glomerular filtration rate after a 12-wk resistance exercise program with post-exercise protein ingestion in community dwelling elderly.

To access publisher's full text version of this article click on the hyperlink at the bottom of the page Increased 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...

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Bibliographic Details
Published in:Nutrition
Main Authors: Ramel, Alfons, Arnarson, Atli, Geirsdottir, Olof G, Jonsson, Palmi V, Thorsdottir, Inga
Other Authors: Univ 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, Iceland
Format: Article in Journal/Newspaper
Language:English
Published: Elsevier Science Inc 2014
Subjects:
Mataræði
Prótín
Mjólk
Líkamsrækt
Nýru
Drykkir
Aldraðir
Lyftingar
Aged
80 and over
Animals
Beverages
Diet
Dietary Carbohydrates
Dietary Proteins
Dietary Supplements
Energy Intake
Exercise
Female
Glomerular Filtration Rate
Humans
Kidney
Male
Milk
Milk Proteins
Resistance Training
Weight Lifting
Iceland
Online Access:http://hdl.handle.net/2336/322355
https://doi.org/10.1016/j.nut.2012.10.002
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Summary:To access publisher's full text version of this article click on the hyperlink at the bottom of the page Increased 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. Patients (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. During 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. A 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. Icelandic Technology Development Fund/ 071323008 University of Iceland Landspitali University Hospital Helga Jonsdottir and Sigurlidi Kristjansson Geriatric Research Fund

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