Determination of Percent Body Fat by the Newly Developed Sulfur Hexafluoride Dilution Method and Air Displacement Plethysmography.

Iwaoka, Hiroko; Yokoyama, Tetsuji; Nakayama, Takeo; Matsumura, Yasuhiro; Yoshitake, Yutaka; Fuchi, T.; Yoshiike, Nobuo; Tanaka, Heizo

doi:10.3177/jnsv.44.561

Cited by 19 publications

(16 citation statements)

References 18 publications

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“…CVs for adults ranged from 1.7% -4.5%BF within a single day of testing (Biaggi et al, 1999;Iwaoka et al, 1998;McCrory, et al, 1995;Miyatake, Nomaka, & Fujii, 1999;Sardinha, Lohman, Teixeira, Guedes, & Going, 1998) and from 2.0% -2.5%BF among studies conducted between days (Fields et al, 2002;Levenhagen et al, 1999;Miyatake et al, 1999;Nunez et al, 1999). These CVs are similar to those studies using HD and DXA methodology (e.g., 1.3% -3%; Ellis, 2001;Pierson et al, 1991;van der Ploeg, Crockett, Modra, Withers, & Gunn, 2000).…”

Section: Validity and Reliability Of Adpsupporting

confidence: 73%

“…HD continues to be the criterion method of choice for body composition measurement, being compared to DXA , ADP (Claros, Hull, & Fields, 2005;Holmes, Gibson, Cremades, & Mier, 2011), BIA (Biaggi et al, 1999) and sulphur hexafluoride dilution (Iwaoka et al, 1998), however, for the purposes of this review only ADP will be discussed as it is the closest to HD and they both use the twocompartment model. ADP and HD have been used to validate each other in both adults Biaggi et al, 1999) and children (Holmes, et al, 2011;Claros, et al, 2005); however, the adult population will be further discussed.…”

Section: Validity and Reliability Of Hdmentioning

confidence: 99%

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Effects of Acute and 2-Hour Postphysical Activity on the Estimation of Body Fat Made by the Bod Pod

Harrop

Woodruff

2015

Journal of Strength and Conditioning Research

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Section: Validity and Reliability Of Adpsupporting

confidence: 73%

Section: Validity and Reliability Of Hdmentioning

confidence: 99%

Effects of Acute and 2-Hour Postphysical Activity on the Estimation of Body Fat Made by the Bod Pod

Harrop

Woodruff

2015

Journal of Strength and Conditioning Research

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“…McCrory et al (1995) observed that within-subject test-to-test reliability was better in the BP (CV ¼ 1.7%) than in HW (CV ¼ 2.3%). Iwaoka et al (1998) reported comparable results (CV for BP ¼ 3.7%, CV for HW ¼ 4.3%) following a similar protocol. Intradevice reliability of the BP is similar to that reported for DXA (Jensen et al, 1993).…”

Section: Introductionsupporting

confidence: 65%

“…The agreement in %BF estimates between the two BP units, in terms of mean difference (0.571.2 %BF), 95% limits of agreements (À1.9-2.9 %BF) and within-subject CV (3.172.2%), was found to be better than that observed by Collins et al (2004), and was similar to that calculated using measured TGV in this study. Previous studies have reported that intradevice reliability, as indicated by within-subject CV for repeated %BF measurements by a single BP, ranged from 1.7 to 3.7% within a day (McCrory et al, 1995;Iwaoka et al, 1998), and from 2.0 to 2.3% between days (Levenhagen et al, 1999;Miyatake et al, 1999) for adults. A comparison of these CVs with those obtained from the current study indicates that the BP has a similar intra and interdevice reliability for assessing %BF.…”

Section: Discussionmentioning

confidence: 99%

Interdevice variability in percent fat estimates using the BOD POD

Ball

2005

Eur J Clin Nutr

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Objective: To evaluate interdevice reliability in body density (Db) and percent body fat (%BF) using air-displacement plethysmography, the BOD POD (BP) body composition system. Design and Setting: Duplicate body composition tests were performed in immediate succession on 50 adults (26 M, 24F; 21-53 y) using two BP units located in the same body composition laboratory. Results: Mean Db and %BF between BP1 and BP2 did not differ significantly for men (DDb ¼ 0.000370.0008 g/ml, P ¼ 0.632; D%BF ¼ 0.171.3, P ¼ 0.665), while for women, there were small but significant differences in Db and %BF between BP1 and BP2 (DDb ¼ 0.001870.0003 g/ml, P ¼ 0.001; D%BF ¼ 0.871.1, P ¼ 0.001). The regression between %BF by BP1 and BP2 did not deviate significantly from the line of identity for both men and women (R 2 ¼ 0.95, standard error of estimate (s.e.e.) ¼ 1.23 %BF for men; R 2 ¼ 0.97, s.e.e ¼ 1.13 %BF for women). Individual variations in %BF estimates between the two BP units were within acceptable ranges (95% limits of agreement ¼ À2.5-2.7 %BF for men; À1.4-3.0 %BF for women), and there was no trend in individual differences as %BF varied (r ¼ À0.19, P ¼ 0.359 for men; r ¼ 0.09, P ¼ 0.677 for women). Other subject characteristics, including age, body mass, height, and body mass index, did not significantly contribute to the differences in %BF estimates by the two BP units. Conclusions: No clinically significant differences in Db and %BF estimates exist between the BP units, and the interdevice variability of the BP has minimal impact on %BF estimates. Further, test-to-test reliability between BP units appears to be as good as within one unit.

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“…McCrory et al, 5 Nuñez et al 11 and Elia & Ward 17 found no over-or underestimation. Collins et al, 7 and Iwaoka et al, 8 found that ADP underestimated %BF -more so in leaner individuals than in those with more fat. It should be noted that all of the subjects in the Collins et al and Iwaoka et al studies were males.…”

Section: Discussionmentioning

confidence: 99%

Comparison of percent body fat estimates using air displacement plethysmography and hydrodensitometry in adults and children

et al. 2002

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PURPOSE:The purpose of the study was to compare estimates of body density and percentage body fat from air displacement plethysmography (ADP) to those from hydrodensitometry (HD) in adults and children and to provide a review of similar recent studies. METHODS: Body density and percentage body fat (% BF) were assessed by ADP and HD on the same day in 87 adults aged 18 -69 y (41 males and 46 females) and 39 children aged 8 -17 y (19 males and 20 females). Differences between measured and predicted thoracic gas volumes determined during the ADP procedure and the resultant effects of those differences on body composition estimates were also compared. In a subset of 50 individuals (31 adults and 19 children), reliability of ADP was measured and the relative ease or difficulty of ADP and HD were probed with a questionnaire. RESULTS: The coefficient of reliability between %BF on day 1 and day 2 was 96.4 in adults and 90.1 in children, and the technical error of measurement of 1.6% in adults and 1.8% in children. Using a predicted rather than a measured thoracic gas volume did not significantly affect percentage body fat estimates in adults, but resulted in overestimates of percentage body fat in children. Mean percentage body fat from ADP was higher than percentage body fat from HD, although this was statistically significant only in adults (29.3 vs 27.7%, P < 0.05). The 95% confidence interval of the between-method differences for all subjects was 7 7 to þ 9% body fat, and the root mean square error (r.m.s.e.) was approximately 4% body fat. In the subset of individuals who were asked to compare the two methods, 46 out of 50 (92%) indicated that they preferred the ADP to HD. CONCLUSION: ADP is a reliable method of measuring body composition that subjects found preferable to underwater weighing. However, as shown here and in most other studies, there are differences in percentage body fat estimates assessed by the two methods, perhaps related to body size, age or other factors, that are sufficient to preclude ADP from being used interchangeably with underwater weighing on an individual basis.

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Determination of Percent Body Fat by the Newly Developed Sulfur Hexafluoride Dilution Method and Air Displacement Plethysmography.

Cited by 19 publications

References 18 publications

Effects of Acute and 2-Hour Postphysical Activity on the Estimation of Body Fat Made by the Bod Pod

Effects of Acute and 2-Hour Postphysical Activity on the Estimation of Body Fat Made by the Bod Pod

Interdevice variability in percent fat estimates using the BOD POD

Comparison of percent body fat estimates using air displacement plethysmography and hydrodensitometry in adults and children

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