Determination of Percent Body Fat by the Newly Developed Sulfur Hexafluoride Dilution Method and Air Displacement Plethysmography
| Autor: | Yasuhiro Matsumura, Heizo Tanaka, Nobuo Yoshiike, Yutaka Yoshitake, Hiroko Iwaoka, Tokio Fuchi, Tetsuji Yokoyama, Takeo Nakayama |
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| Rok vydání: | 1998 |
| Předmět: |
Adult
Male medicine.medical_specialty Hydrostatic weighing Sulfur Hexafluoride Medicine (miscellaneous) chemistry.chemical_compound Animal science Japan Linear regression medicine Humans Plethysmograph Whole-body air displacement plethysmography Plethysmography Whole Body Nutrition and Dietetics Dilution Surgery Sulfur hexafluoride chemistry Volume (thermodynamics) Body Composition Linear Models Regression Analysis Densitometry |
| Zdroj: | Journal of Nutritional Science and Vitaminology. 44:561-568 |
| ISSN: | 1881-7742 0301-4800 |
| DOI: | 10.3177/jnsv.44.561 |
| Popis: | The reliability and validity of two newly developed densitometric methods for determining the human body volume and percent body fat (%FAT), the sulfur hexafluoride dilution method (SHF) and air displacement plethysmography (ADP), were evaluated in comparison with the underwater weighing method (UWW). Seven healthy male volunteers (age 31 to 44, mean height 166.0 cm, weight 61.4 kg) participated in this study. The same-day test-retest coefficients of variation (CVs) for body volume and %FAT measurements were not significantly different among the three methods. SHF and UWW showed a strong correlation in terms of body volume and %FAT, with the correlation coefficients (r) being 0.9997 and 0.986, respectively. The correlation between ADP and UWW was slightly weaker (r = 0.9997 for body volume and 0.907 for %FAT). However, body volumes measured by SHF and ADP were significantly different from that by UWW when compared by mean values. Such differences were also found for %FAT measurements. The regression lines of body volume measured by SHF and ADP on that by UWW were almost equivalent to the line of identity. However, those of %FAT measured by SHF and ADP on that by UWW were significantly different from the line of identity. Because the reliability of SHF and ADP appeared to be high, further validation and improvement are required and worth doing. |
| Databáze: | OpenAIRE |
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