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Validation of a three-dimensional body scanner for body composition measures

European Journal of Clinical Nutritionvolume 72pages11911194 (2018) | Download Citation

Abstract

The accuracy of an infrared three-dimensional (3D) body scanner in determining body composition was compared against hydrostatic weighing (HW), bioelectrical impedance analysis (BIA), and anthropometry. A total of 265 adults (119 males; age = 22.1 ± 2.5 years; body mass index = 24.5 ± 3.9 kg/m2) had their body fat percent (BF%) estimated from 3D scanning, HW, BIA, skinfolds, and girths. A repeated measures analysis of variance (ANOVA) indicated significant differences among methods (p < 0.001). Multivariate ANOVA indicated a significant main effect of sex and method (p < 0.001), with a non-significant interaction (p = 0.101). Bonferroni post-hoc comparisons identified that BF% from 3D scanning (18.1 ± 7.8%) was significantly less than HW (22.8 ± 8.5%, p < 0.001), BIA (20.1 ± 9.1%, p < 0.001), skinfolds (19.7 ± 9.7%, p < 0.001), and girths (21.2 ± 10.4%, p < 0.001). The 3D scanner decreased in precision with increasing adiposity, potentially resulting from inconsistences in the 3D scanner’s analysis algorithm. A correction factor within the algorithm is required before infrared 3D scanning can be considered valid in measuring BF%.

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:The authors report no conflict of interest.

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Acknowledgements

The authors wish to thank the University of Minnesota, Twin Cities.

Author information

Affiliations

  1. Laboratory of Integrative Human Physiology, School of Kinesiology, University of Minnesota, Minneapolis, MN, 55455, USA

    • Michelle M. Harbin
    • , Alexander Kasak
    •  & Donald R. Dengel
  2. Kinesiology and Health Sciences, College of Education and Science, Concordia University - St. Paul, St. Paul, MN, 55104, USA

    • Joseph D. Ostrem

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Funding

The authors report no funding source.

Conflict of interest

The authors declare that they have no conflict of interest.

Corresponding author

Correspondence to Michelle M. Harbin.

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DOI

https://doi.org/10.1038/s41430-017-0046-1