Association between plant protein intake and grip strength in Koreans aged 50 years or older: Korea National Health and Nutrition Examination Survey 2016–2018
- Author:
Sook-Hyun JUN
1
;
Jung Woo LEE
;
Woo-Kyoung SHIN
;
Seung-Yeon LEE
;
Yookyung KIM
Author Information
- Publication Type:Original Research
- From:Nutrition Research and Practice 2023;17(5):969-983
- CountryRepublic of Korea
- Language:English
-
Abstract:
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 (Pfor 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.
