Dietary protein intake is associated with lean body mass in community-dwelling older adults

Olof G. Geirsdottir; Atli Arnarson; Alfons Ramel; Palmi V. Jonsson; Inga Thorsdottir

doi:10.1016/j.nutres.2013.05.014

Dietary protein intake is associated with lean body mass in community-dwelling older adults

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Abstract

Lean body mass (LBM) is important to maintain physical function during aging. We hypothesized that dietary protein intake and leisure-time physical activity are associated with LBM in community-dwelling older adults. To test the hypothesis, participants (n = 237; age, 65-92 years) did 3-day weighed food records and reported physical activity. Body composition was assessed using dual-energy x-ray absorptiometry. Protein intake was 0.98 ± 0.28 and 0.95 ± 0.29 g/kg body weight in male and female participants, respectively. Protein intake (in grams per kilogram of body weight) was associated with LBM (in kilograms); that is, the differences in LBM were 2.3 kg (P < .05) and 2.0 kg (P = .054) between the fourth vs the first and the fourth vs the second quartiles of protein intake, respectively. Only a minor part of this association was explained by increased energy intake, which follows an increased protein intake. Our study shows that dietary protein intake was positively associated with LBM in older adults with a mean protein intake higher than the current recommended daily allowance of 0.8 g/kg per day. Leisure-time physical activity, predominantly consisting of endurance type exercises, was not related to LBM in this group.

Original language	English
Pages (from-to)	608-612
Number of pages	5
Journal	Nutrition Research
Volume	33
Issue number	8
DOIs	https://doi.org/10.1016/j.nutres.2013.05.014
Publication status	Published - Aug 2013

Bibliographical note

Funding Information: The authors declare that they have no competing interests. All authors are responsible for the reported research. This study was part of the IceProQualita project, which was funded by the Icelandic Technology Development Fund (No. 071323008 ), Research Fund of the University of Iceland , a grant from Landspitali University Hospital Research Fund , and the Helga Jonsdottir and Sigurlidi Kristjansson Geriatric Research Fund . The trial is registered at the US National Library of Medicine (No. NCT01074879). The authors want to thank Cindy Mari Imai for editorial and writing assistance.

Other keywords

Aging
Body composition
Cross-sectional study
Dietary proteins
Physical activity

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1016/j.nutres.2013.05.014

Cite this

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title = "Dietary protein intake is associated with lean body mass in community-dwelling older adults",

abstract = "Lean body mass (LBM) is important to maintain physical function during aging. We hypothesized that dietary protein intake and leisure-time physical activity are associated with LBM in community-dwelling older adults. To test the hypothesis, participants (n = 237; age, 65-92 years) did 3-day weighed food records and reported physical activity. Body composition was assessed using dual-energy x-ray absorptiometry. Protein intake was 0.98 ± 0.28 and 0.95 ± 0.29 g/kg body weight in male and female participants, respectively. Protein intake (in grams per kilogram of body weight) was associated with LBM (in kilograms); that is, the differences in LBM were 2.3 kg (P < .05) and 2.0 kg (P = .054) between the fourth vs the first and the fourth vs the second quartiles of protein intake, respectively. Only a minor part of this association was explained by increased energy intake, which follows an increased protein intake. Our study shows that dietary protein intake was positively associated with LBM in older adults with a mean protein intake higher than the current recommended daily allowance of 0.8 g/kg per day. Leisure-time physical activity, predominantly consisting of endurance type exercises, was not related to LBM in this group.",

keywords = "Aging, Body composition, Cross-sectional study, Dietary proteins, Physical activity",

author = "Geirsdottir, \{Olof G.\} and Atli Arnarson and Alfons Ramel and Jonsson, \{Palmi V.\} and Inga Thorsdottir",

note = "Funding Information: The authors declare that they have no competing interests. All authors are responsible for the reported research. This study was part of the IceProQualita project, which was funded by the Icelandic Technology Development Fund (No. 071323008 ), Research Fund of the University of Iceland , a grant from Landspitali University Hospital Research Fund , and the Helga Jonsdottir and Sigurlidi Kristjansson Geriatric Research Fund . The trial is registered at the US National Library of Medicine (No. NCT01074879). The authors want to thank Cindy Mari Imai for editorial and writing assistance.",

year = "2013",

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doi = "10.1016/j.nutres.2013.05.014",

language = "English",

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AU - Geirsdottir, Olof G.

AU - Arnarson, Atli

AU - Ramel, Alfons

AU - Jonsson, Palmi V.

AU - Thorsdottir, Inga

N1 - Funding Information: The authors declare that they have no competing interests. All authors are responsible for the reported research. This study was part of the IceProQualita project, which was funded by the Icelandic Technology Development Fund (No. 071323008 ), Research Fund of the University of Iceland , a grant from Landspitali University Hospital Research Fund , and the Helga Jonsdottir and Sigurlidi Kristjansson Geriatric Research Fund . The trial is registered at the US National Library of Medicine (No. NCT01074879). The authors want to thank Cindy Mari Imai for editorial and writing assistance.

PY - 2013/8

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N2 - Lean body mass (LBM) is important to maintain physical function during aging. We hypothesized that dietary protein intake and leisure-time physical activity are associated with LBM in community-dwelling older adults. To test the hypothesis, participants (n = 237; age, 65-92 years) did 3-day weighed food records and reported physical activity. Body composition was assessed using dual-energy x-ray absorptiometry. Protein intake was 0.98 ± 0.28 and 0.95 ± 0.29 g/kg body weight in male and female participants, respectively. Protein intake (in grams per kilogram of body weight) was associated with LBM (in kilograms); that is, the differences in LBM were 2.3 kg (P < .05) and 2.0 kg (P = .054) between the fourth vs the first and the fourth vs the second quartiles of protein intake, respectively. Only a minor part of this association was explained by increased energy intake, which follows an increased protein intake. Our study shows that dietary protein intake was positively associated with LBM in older adults with a mean protein intake higher than the current recommended daily allowance of 0.8 g/kg per day. Leisure-time physical activity, predominantly consisting of endurance type exercises, was not related to LBM in this group.

AB - Lean body mass (LBM) is important to maintain physical function during aging. We hypothesized that dietary protein intake and leisure-time physical activity are associated with LBM in community-dwelling older adults. To test the hypothesis, participants (n = 237; age, 65-92 years) did 3-day weighed food records and reported physical activity. Body composition was assessed using dual-energy x-ray absorptiometry. Protein intake was 0.98 ± 0.28 and 0.95 ± 0.29 g/kg body weight in male and female participants, respectively. Protein intake (in grams per kilogram of body weight) was associated with LBM (in kilograms); that is, the differences in LBM were 2.3 kg (P < .05) and 2.0 kg (P = .054) between the fourth vs the first and the fourth vs the second quartiles of protein intake, respectively. Only a minor part of this association was explained by increased energy intake, which follows an increased protein intake. Our study shows that dietary protein intake was positively associated with LBM in older adults with a mean protein intake higher than the current recommended daily allowance of 0.8 g/kg per day. Leisure-time physical activity, predominantly consisting of endurance type exercises, was not related to LBM in this group.

KW - Aging

KW - Body composition

KW - Cross-sectional study

KW - Dietary proteins

KW - Physical activity

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U2 - 10.1016/j.nutres.2013.05.014

DO - 10.1016/j.nutres.2013.05.014

M3 - Article

C2 - 23890349

SN - 0271-5317

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EP - 612

JO - Nutrition Research

JF - Nutrition Research

IS - 8

ER -

Dietary protein intake is associated with lean body mass in community-dwelling older adults

Abstract

Bibliographical note

Other keywords

UN SDGs

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