Tracking fat-free mass changes in elderly men and women using single-frequency bioimpedance and dual-energy X-ray absorptiometry: A four-compartment model comparison
Open accessAbstract
Background/objectives To compare single estimations of fat-free mass (FFM) and to track FFM using single-frequency bioelectrical impedance analysis (BIA) and dual-energy X-ray absorptiometry (DXA) compared with a four-compartment (4C) model in healthy elderly Americans. Subjects/methods Thirty-four men and thirty-eight women (Caucasian, ≥ 65 years) were included in the study. Subjects participated in either the control group or the exercise group. All testing and training took place during the 21-week investigation. Body composition assessments using nine BIA equations, DXA and a 4C model were performed during weeks 1, 12 and 24 of the study. Results Single estimations for DXA and BIA produced high r values (0.79-0.95) and low standard error of estimate values (1.62-3.3 kg), producing subjective ratings of 'ideal' for men and 'excellent' for women. Both DXA and two BIA equations revealed the same significance when comparing groups and times with the 4C model. Individual accuracy for tracking changes was similar among BIA equations and DXA compared with the 4C model, with a total agreement of 25% for BIA and 27% for DXA compared with the 4C model. Conclusions The current data in combination with the reliability errors for both BIA and DXA FFM estimations suggest that individual results should be interpreted with caution if FFM changes are <5 kg. However, DXA and BIA are both valid methods that can be used interchangeably to estimate FFM at a single time point or for tracking changes in FFM in small groups (15-22) of healthy American older adults.
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A number of studies have demonstrated the validity of both single-frequency and multi-frequency devices, concluding that BIA may be used as an alternative to DXA for whole-body and segmental body composition assessment in large groups.
“A number of studies have demonstrated the validity of both single-frequency and multi-frequency devices, concluding that BIA may be used as an alternative to DXA for whole-body and segmental body composition assessment in large groups (see Figure 3) [53,54].”
From The Utility of Body Composition Assessment in Nutrition and Clinical Practice: An Overview of Current Methodology (2021) · cites this paper as [54]
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Muscle Glycogen Content during Endurance Training under Low Energy Availability
KOJIMA, C., ISHIBASHI, A., TANABE, Y., IWAYAMA, K., KAMEI, A., TAKAHASHI, H., & GOTO, K. (2020) · Medicine & Science in Sports & Exercise · doi:10.1249/mss.0000000000002098 · Cited by 55 · see citing works
- Authors
- Moon, J. R., Stout, J. R., Smith-Ryan, A. E., Kendall, K. L., Fukuda, D. H., Cramer, J. T., & Moon, S. E.
- Affiliations
- United States Sports Academy (US)
- University of Central Florida (US)
- Georgia Southern University (US)
- Creighton University (US)
- University of Nebraska–Lincoln (US)
- University of Kentucky (US)
- Corresponding author
- Moon, J R
- Venue
- European Journal of Clinical Nutrition
- Published
- 2013-01
- Volume
- 67
- Issue
- S1
- Pages
- S40-S46
- ISSN
- 0954-3007 (ISSN-L)
- 1476-5640
- OpenAlex
- W2039549252
- Cited by
- 59
- References
- 8
- Citations by year
- 2026: 1 · 2024: 3 · 2023: 5 · 2022: 2 · 2021: 3 · 2020: 5 · 2019: 6 · 2018: 7 · 2017: 9 · 2016: 6 · 2015: 6 · 2014: 5 · 2013: 1
- FWCI
- 4.17
- Type
- journal article
- Language
- en
- Open access
- Locations
- European Journal of Clinical Nutrition (publishedVersion)
- PubMed (publishedVersion)
- Journal of International Crisis and Risk Communication Research (submittedVersion)
- Topics
- Health Sciences › Medicine › Physiology › Body Composition Measurement Techniques
- Health Sciences › Medicine › Physiology › Nutrition and Health in Aging
- Health Sciences › Medicine › Orthopedics and Sports Medicine › Bone health and osteoporosis research
- Keywords
- fat-free mass, body composition, dual-energy X-ray absorptiometry, four-compartment model, method comparison, measurement error, older adults, exercise training
- MeSH terms
- Aged, Anthropometry, Body Composition, Body Fluid Compartments, Female, Humans, Male, Models, Biological, Reference Values, Sex Factors, United States, Reproducibility of Results, Exercise, Absorptiometry, Photon, Electric Impedance, White People, Mathematical Concepts
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