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Body composition in the elderly: reference values and bioelectrical impedance spectroscopy to predict total body skeletal muscle mass.
Clin Nutr. 2009 Feb; 28(1):52-8.CN

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.

Authors+Show Affiliations

Department of Clinical Nutrition, Sahlgrenska University Hospital, Sahlgrenska Academy at University of Gothenburg, Goteborg, Sweden.No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

19010572

Citation

Tengvall, Marja, et al. "Body Composition in the Elderly: Reference Values and Bioelectrical Impedance Spectroscopy to Predict Total Body Skeletal Muscle Mass." Clinical Nutrition (Edinburgh, Scotland), vol. 28, no. 1, 2009, pp. 52-8.
Tengvall M, Ellegård L, Malmros V, et al. Body composition in the elderly: reference values and bioelectrical impedance spectroscopy to predict total body skeletal muscle mass. Clin Nutr. 2009;28(1):52-8.
Tengvall, M., Ellegård, L., Malmros, V., Bosaeus, N., Lissner, L., & Bosaeus, I. (2009). Body composition in the elderly: reference values and bioelectrical impedance spectroscopy to predict total body skeletal muscle mass. Clinical Nutrition (Edinburgh, Scotland), 28(1), 52-8. https://doi.org/10.1016/j.clnu.2008.10.005
Tengvall M, et al. Body Composition in the Elderly: Reference Values and Bioelectrical Impedance Spectroscopy to Predict Total Body Skeletal Muscle Mass. Clin Nutr. 2009;28(1):52-8. PubMed PMID: 19010572.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Body composition in the elderly: reference values and bioelectrical impedance spectroscopy to predict total body skeletal muscle mass. AU - Tengvall,Marja, AU - Ellegård,Lars, AU - Malmros,Vibeke, AU - Bosaeus,Niklas, AU - Lissner,Lauren, AU - Bosaeus,Ingvar, Y1 - 2008/11/17/ PY - 2008/03/19/received PY - 2008/08/12/revised PY - 2008/10/06/accepted PY - 2008/11/18/pubmed PY - 2009/5/27/medline PY - 2008/11/18/entrez SP - 52 EP - 8 JF - Clinical nutrition (Edinburgh, Scotland) JO - Clin Nutr VL - 28 IS - 1 N2 - 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. SN - 1532-1983 UR - https://www.unboundmedicine.com/medline/citation/19010572/Body_composition_in_the_elderly:_reference_values_and_bioelectrical_impedance_spectroscopy_to_predict_total_body_skeletal_muscle_mass_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0261-5614(08)00190-8 DB - PRIME DP - Unbound Medicine ER -