Cited by 88Body Composition Measurement TechniquesNutrition and Health in AgingMuscle metabolism and nutrition

Body composition in the elderly: Reference values and bioelectrical impedance spectroscopy to predict total body skeletal muscle mass

Tengvall, Marja, Ellegård, Lars, Malmros, Vibeke, Bosaeus, Niklas, Lissner, Lauren, Bosaeus, Ingvar·2009·Clinical Nutrition

Abstract

Background & aims To validate the bioelectrical impedance spectroscopy (BIS) model against dual-energy X-ray absorptiometry (DXA), to develop and compare BIS estimates of skeletal muscle mass (SMM) to other prediction equations, and to report BIS reference values of body composition in a population-based sample of 75-year-old Swedes.Methods Body composition was measured by BIS in 574 subjects, and by DXA and BIS in a subset of 98 subjects. Data from the latter group was used to develop BIS prediction equations for total body skeletal muscle mass (TBSMM).Results Average fat free mass (FFM) measured by DXA and BIS was comparable. FFM(BIS) for women and men was 40.6 kg and 55.8 kg, respectively. Average fat free mass index (FFMI) and body fat index (BFI) for women were 15.6 and 11.0. Average FFMI and BFI for men were 18.3 and 8.6. Existing bioelectrical impedance analysis equations to predict SMM were not valid in this cohort. A TBSMM prediction equation developed from this sample had an R(2)(pred) of 0.91, indicating that the equation would explain 91% of the variability in future observations.Conclusions BIS correctly estimated average FFM in healthy elderly Swedes. For prediction of TBSMM, a population specific equation was required.

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Crossref · 10.1016/j.clnu.2008.10.005

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Authors
Tengvall, M., Ellegård, L., Malmros, V., Bosaeus, N., Lissner, L., & Bosaeus, I.
Affiliations
Sahlgrenska University Hospital (SE)
Corresponding author
Ellegård, Lars
Venue
Clinical Nutrition
Publisher
Elsevier BV
Published
2009-02
Volume
28
Issue
1
Pages
52-58
ISSN
0261-5614 (ISSN-L)
OpenAlex
W2026515953
Cited by
87
References
26
Citations by year
2026: 1 · 2024: 2 · 2023: 1 · 2022: 2 · 2021: 6 · 2020: 6 · 2019: 2 · 2018: 10 · 2017: 3 · 2016: 7 · 2015: 11 · 2014: 9 · 2013: 8 · 2012: 8
FWCI
2.49
Type
journal article
Language
en
Open access
closed
Locations
  • Clinical Nutrition (publishedVersion)
  • PubMed (publishedVersion)
  • Chalmers Research (Chalmers University of Technology) (submittedVersion)
Topics
  • Health Sciences › Medicine › Physiology › Body Composition Measurement Techniques
  • Health Sciences › Medicine › Physiology › Nutrition and Health in Aging
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cell Biology › Muscle metabolism and nutrition
Keywords
body composition, older adults, bioimpedance spectroscopy, skeletal muscle mass, fat-free mass, reference values, prediction equations, dual-energy X-ray absorptiometry, fat-free mass index, body fat index, sarcopenia
MeSH terms
Adipose Tissue, Aged, Aging, Algorithms, Body Composition, Body Water, Female, Humans, Male, Predictive Value of Tests, Reference Values, Sensitivity and Specificity, Sweden, Reproducibility of Results, Cohort Studies, Absorptiometry, Photon, Electric Impedance, Muscle, Skeletal

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