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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 

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The performance of an infra-red interactance instrument for assessing total body fat.

Infra-red interactance has been evaluated as a technique for measuring total body fat in comparison with a range of alternative methods. The alternative techniques employed were neutron activation analysis, tritiated water dilution, whole-body potassium-40 counting, skinfold anthropometry, bioelectrical impedance analysis and the body mass index. The study group consisted of 43 healthy adults (16 males and 27 females). For 11 women, measurements were obtained before and after 11 weeks on a very low-calorie diet, giving a total of 54 sets of data. Correlation coefficients between infra-red interactance and the other techniques varied between 0.58 (p < 0.0002) and 0.80 (p < 0.0001) for females, and between 0.64 (p < 0.009) and 0.94 (p < 0.0001) for males. The average fat for the study group was underestimated by 15% using infra-red interactance in comparison with the average fat obtained from the other techniques. It was also noted that the infra-red interactance instrument yielded a very narrow range of body fats in females in comparison with the other techniques. It is essential that these differences are reconciled before infra-red interactance takes a significant role in body composition analysis.[1]

References

  1. The performance of an infra-red interactance instrument for assessing total body fat. Thomas, D.W., Ryde, S.J., Ali, P.A., Birks, J.L., Evans, C.J., Saunders, N.H., Al-Zeibak, S., Dutton, J., Hancock, D.A. Physiological measurement. (1997) [Pubmed]
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