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KMID : 1239920230170050969
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Nutrition Research and Practice
2023 Volume.17 No. 5 p.969 ~ p.983
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Association between plant protein intake and grip strength in Koreans aged 50 years or older: Korea National Health and Nutrition Examination Survey 2016?2018
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Jun Sook-Hyun
Lee Jung-Woo
Shin Woo-kyoung
Lee Seung-Yeon
Kim Yoo-Kyung
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Abstract
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BACKGROUND/OBJECTIVES : We investigated the association of plant and animal protein intake with grip strength in Koreans aged ≥ 50 yrs.
SUBJECTS/METHODS : The data was collected from 3,610 men and 4,691 women (≥ 50 yrs) from the 2016?2018 Korea National Health and Nutrition Examination Survey. We calculated the total energy intake, and the intake of animal and plant protein and collected dietary data using 1-day 24-h dietary recalls. Low grip strength (LGS) was defined as the lowest quintile (men: up to 26.8 kg, women: up to 15.7 kg). The association of protein intake with grip strength was examined using Pearson’s correlation and multiple linear regression analysis.
RESULTS : The results proved that participants with LGS had lower daily energy, protein and fat intake, and percent energy from protein than those with normal or high grip strength (P < 0.0001). Total energy intake, animal protein, and plant protein were positively associated with grip strength. A higher intake of total plant protein (P for trend = 0.004 for men, 0.05 for women) and legumes, nuts, and seeds (LNS) protein (P for trend = 0.01 for men, 0.02 for women) was significantly associated with a lower prevalence of LGS. However, non-LNS plant protein intake was not associated with LGS (P for trend = 0.10 for men, 0.15 for women). In women, a higher total animal protein intake was significantly associated with decreased LGS (P for trend = 0.03).
CONCLUSIONS : Higher total plant protein and LNS protein intake are negatively associated with LGS.
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KEYWORD
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Dietary proteins, sarcopenia, food, KNHANES, Koreans
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