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Self-reported prote...
Self-reported protein intake and properties of bone in community-dwelling older individuals
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- Johansson, Jonas (author)
- Umeå universitet,Yrkes- och miljömedicin,Geriatrik
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- Hult, Andreas (author)
- Umeå universitet,Yrkes- och miljömedicin
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- Morseth, Bente (author)
- Department of Community Medicine, The Arctic University of Norway, Tromsø, Norway.School of Sport Sciences, The Arctic University of Norway, Tromsø, Norway.
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- Nordström, Anna (author)
- Umeå universitet,Yrkes- och miljömedicin,School of Sport Sciences, The Arctic University of Norway, Tromsø, Norway.
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- Nordström, Peter (author)
- Umeå universitet,Geriatrik
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(creator_code:org_t)
- 2018-01-31
- 2018
- English.
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In: Archives of Osteoporosis. - : Springer. - 1862-3514 .- 1862-3522. ; 13:1
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https://umu.diva-por... (primary) (Raw object)
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Abstract
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- SUMMARY: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 (β = 0.082) and L1-L4 vertebrae (β = 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 (β = 0.08), periosteal circumference (β = 0.072), radial aBMD (β = 0.064), and trabecular area (β = 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.
Subject headings
- MEDICIN OCH HÄLSOVETENSKAP -- Hälsovetenskap -- Näringslära (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Health Sciences -- Nutrition and Dietetics (hsv//eng)
Keyword
- Appendicular muscle mass
- Bone mineral density
- Community dwelling
- Peripheral quantitative computed tomography
- Protein intake
Publication and Content Type
- ref (subject category)
- art (subject category)
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