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Titre du document / Document title

Relationship between animal protein intake and muscle mass index in healthy women

Auteur(s) / Author(s)

AUBERTIN-LEHEUDRE Mylène (1) ; ADLERCREUTZ Herman (1) ;

Affiliation(s) du ou des auteurs / Author(s) Affiliation(s)

(1) Institute for Preventive Medicine, Nutrition and Cancer, Folkhälsan Research Centre, PB 63 (Room C315a), Division of Clinical Chemistry, University of Helsinki, University of Helsinki, Helsinki, 00014, FINLANDE

Résumé / Abstract

The amount and the type of dietary protein could play a role in determining the quantity of skeletal muscle mass. The aim was to examine the relationship between the type of protein intake and the level of muscle mass in healthy omnivorous and vegetarian Caucasian women. The design of the present study was an observational and cross-sectional study. Twenty-one omnivores (Om) and nineteen vegetarians (Ve) were recruited. Muscle mass index (urinary creatinine), dietary intake (5 d dietary records) and biochemical analyses (hormone, phyto-oestrogen and lipid profiles) were obtained. We found differences between groups for muscle mass (Ve: 18 kg v. Om: 23 kg; P=0·010), muscle mass index (Ve: 6·7 kg/m2 v. Om: 8·3 kg/m2; P=0·002), animal protein intake in g/d (P=0·001) and in g/kg body weight per d (P= 0·003), plant protein intake in g/d (P= 0·015) and in g/kg body weight per d (P=0.007), the animal:plant protein intake ratio (P=0·001) and sex hormone-binding globulin (SHBG) (P=0·001). Muscle mass index still correlated with animal protein intake in g/d (P=0·001) and in g/kg body weight per d (P=0.008), and the animal:plant protein intake ratio (P=0.007) even after controlling for SHBG and plant protein intake. Finally, animal protein intake (g/d) was the independent predictor of muscle mass index (adjusted r2 0·42). Thus, a vegetarian diet is associated with a lower muscle mass index than is an omnivorous diet at the same protein intake. A good indicator of muscle mass index in women seems to be animal protein intake.

Revue / Journal Title

British journal of nutrition    ISSN  0007-1145   CODEN BJNUAV 

Source / Source

2009, vol. 102, no12, pp. 1803-1810 [8 page(s) (article)] (53 ref.)

Langue / Language

Anglais

Editeur / Publisher

Cambridge University Press, Cambridge, ROYAUME-UNI  (1947) (Revue)

Mots-clés anglais / English Keywords

Vertebrata

;

Mammalia

;

Feeding

;

Nutrition

;

Human

;

Female

;

Index

;

Striated muscle

;

Animal protein

;

Mots-clés français / French Keywords

Vertebrata

;

Mammalia

;

Alimentation

;

Nutrition

;

Homme

;

Femelle

;

Indice

;

Muscle strié

;

Protéine animale

;

Mots-clés espagnols / Spanish Keywords

Vertebrata

;

Mammalia

;

Alimentación

;

Nutrición

;

Hombre

;

Hembra

;

Indice

;

Músculo estriado

;

Proteína animal

;

Mots-clés d'auteur / Author Keywords

Muscle mass index

;

Animal protein intake

;

Human nutrition

;

Localisation / Location

INIST-CNRS, Cote INIST : 2404, 35400018994591.0120

Nº notice refdoc (ud4) : 22275852



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