Premium
Intakes of total and plant protein are associated with greater muscle strength: The Framingham Osteoporosis Study
Author(s) -
McLean Robert R,
Hannan Marian T,
Kiel Douglas P,
Casey Virginia,
Mangano Kelsey M,
Sahni Shivani
Publication year - 2013
Publication title -
the faseb journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.709
H-Index - 277
eISSN - 1530-6860
pISSN - 0892-6638
DOI - 10.1096/fasebj.27.1_supplement.233.2
Subject(s) - quartile , medicine , framingham heart study , isometric exercise , framingham risk score , grip strength , cohort , linear regression , osteoporosis , endocrinology , physical therapy , disease , mathematics , confidence interval , statistics
Objective To determine the relation of dietary protein with quadriceps muscle strength in Framingham Offspring participants. Methods Multivariable regression assessed protein (g/d, from FFQ 1995–98) with isometric quadriceps strength measured by hand‐held dynamometer (kg, max of 2 trials) in 2,674 men & women. Least squares‐adjusted mean strength was calculated for quartiles of energy‐adjusted protein (residual method) and linear trend tested. Model 1 assessed total protein (TP) and model 2 assessed animal (AP) and plant (PP) proteins. Results Mean age 60 ± 9y. Protein intakes (g/d) were TP: 78±27, AP: 54±22; PP: 24±9. Participants in high quartiles of TP (Q3–Q4) and PP (Q4) had higher quadriceps strength compared to those in Q1 (Table). No significant associations were seen for AP intake. Similar results were observed with protein as a continuous variable. Conclusions TP & PP intakes, but not AP were positively associated with quadriceps strength; consistent with data showing that alkaline diets may favor the preservation of muscle mass in older adults. Funding source : NIH AR # 053205; AR/AG41398, Framingham Heart Study (N01‐HC‐25195) & General Mills Bell Institute of Health and Nutrition