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Nutrients 2016, 8(6), 373; doi:10.3390/nu8060373

The Association between Total Protein and Vegetable Protein Intake and Low Muscle Mass among the Community-Dwelling Elderly Population in Northern Taiwan

1
Department of Medical Education, E-Da Hospital and I-Shou University, Kaohsiung City 82445, Taiwan
2
Department of Family Medicine, National Taiwan University Hospital, Taipei 10002, Taiwan
3
Department of Community and Family Medicine, National Taiwan University Hospital, Hsin-Chu Branch, Hsinchu City 30059, Taiwan
4
Department of Family Medicine, National Taiwan University Hospital, Bei-Hu Branch, Taipei 10845, Taiwan
5
Graduate Institute of Clinical Medical Science, China Medical University, Taichung 40402, Taiwan
*
Author to whom correspondence should be addressed.
Received: 4 May 2016 / Revised: 2 June 2016 / Accepted: 8 June 2016 / Published: 17 June 2016
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Abstract

Sarcopenia, highly linked with fall, frailty, and disease burden, is an emerging problem in aging society. Higher protein intake has been suggested to maintain nitrogen balance. Our objective was to investigate whether pre-sarcopenia status was associated with lower protein intake. A total of 327 community-dwelling elderly people were recruited for a cross-sectional study. We adopted the multivariate nutrient density model to identify associations between low muscle mass and dietary protein intake. The general linear regression models were applied to estimate skeletal muscle mass index across the quartiles of total protein and vegetable protein density. Participants with diets in the lowest quartile of total protein density (<13.2%) were at a higher risk for low muscle mass (odds ratio (OR) 3.03, 95% confidence interval (CI) 1.37–6.72) than those with diets in the highest quartile (≥17.2%). Similarly, participants with diets in the lowest quartile of vegetable protein density (<5.8%) were at a higher risk for low muscle mass (OR 2.34, 95% CI 1.14–4.83) than those with diets in the highest quartile (≥9.4%). Furthermore, the estimated skeletal muscle mass index increased significantly across the quartiles of total protein density (p = 0.023) and vegetable protein density (p = 0.025). Increasing daily intakes of total protein and vegetable protein densities appears to confer protection against pre-sarcopenia status. View Full-Text
Keywords: sarcopenia; protein; vegetable protein; nutrition; vegetarian diet sarcopenia; protein; vegetable protein; nutrition; vegetarian diet
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Huang, R.-Y.; Yang, K.-C.; Chang, H.-H.; Lee, L.-T.; Lu, C.-W.; Huang, K.-C. The Association between Total Protein and Vegetable Protein Intake and Low Muscle Mass among the Community-Dwelling Elderly Population in Northern Taiwan. Nutrients 2016, 8, 373.

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