Self-reported protein intake and properties of bone in community-dwelling older individuals.
Arch Osteoporos
; 13(1): 10, 2018 01 31.
Article
en En
| MEDLINE
| ID: mdl-29388047
ABSTRACT
This study revealed that a quick and simple estimation of protein intake was related to measures of bone density and area in 70-year-old individuals. Furthermore, these associations were mediated by muscle mass when investigating peripheral measurement sites such as arms and legs. PURPOSE:
Recent evidence suggests that dietary protein is beneficial for bone health in older individuals, but less is known about the influence of muscle mass on this relationship. This cross-sectional study aimed to investigate associations among protein intake, bone health, and muscle mass in 2332 men and women aged 70 years.METHODS:
Volumetric bone mineral density of the radius and tibia was measured using peripheral quantitative computed tomography. Using dual-energy X-ray absorptiometry, we measured areal bone mineral density (aBMD) at the L1-L4 vertebrae, radius, and femoral neck, together with appendicular lean mass. Participants reported their average meal size and proportion of meat/fish intake. Associations were investigated using multiple linear regression models, adjusted for multiple covariates.RESULTS:
Self-reported protein intake was associated with aBMD of the femoral neck (ß = 0.082) and L1-L4 vertebrae (ß = 0.063) in men (both p < 0.05) after adjusting for multiple covariates, including appendicular muscle mass. No significant association was detected among women. In addition, protein intake was associated with tibial cortical area (ß = 0.08), periosteal circumference (ß = 0.072), radial aBMD (ß = 0.064), and trabecular area (ß = 0.078) in men (all p < 0.05), although these associations were attenuated after adjustment for appendicular muscle mass (all p > 0.05).CONCLUSION:
Self-reported protein intake was associated with bone properties in 70-year-old men. The strength of these associations in peripheral bone sites may be partially mediated by muscle mass from protein intake.Palabras clave
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Proteínas en la Dieta
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Absorciometría de Fotón
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Densidad Ósea
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Músculo Esquelético
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Vida Independiente
Tipo de estudio:
Observational_studies
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Prevalence_studies
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Prognostic_studies
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Risk_factors_studies
Límite:
Aged
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Female
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Humans
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Male
Idioma:
En
Revista:
Arch Osteoporos
Año:
2018
Tipo del documento:
Article
País de afiliación:
Suecia