Critical Appraisal of Data Acquisition in Body Composition: Evaluation of Methods, Techniques and Technologies on the Anatomical Tissue-System Level

Scafoglieri, Aldo; Provyn, Steven; Bautmans, Ivan; Wallace, Joanne; Sutton, Laura; Tresignie, Jonathan; Louis, Olivia; Mey, Johan De; Clarys, Jan Pieter

doi:10.5772/10446

Cited by 3 publications

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“…Indeed, Bland and Altman [ 2 , 3 ] have restated this caveat several times. Dual energy X-ray absorptiometry (DXA) represents a rapid non-invasive methodology which may eliminate such issues associated with skinfold derived estimates of body composition [ 33 ] . DXA utilises a 3 compartmental model resolving body composition components into 'DXA defi ned' fat mass, lean mass, bone mineral content and density.…”

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The Validity of Commonly Used Adipose Tissue Body Composition Equations Relative to Dual Energy X-ray Absorptiometry (DXA) in Gaelic Games Players

et al. 2013

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Dual-energy X-ray absorptiometry (DXA) and adipose tissue percentage estimates (AT%) derived from regression based skinfold equations were compared. 35 Gaelic games players [20.9 ± 1.7 years; 78.1 ± 8.6 kg; 179.5 ± 5.7 cm] underwent whole body fan beam DXA scans following a standardised protocol and assessment of skinfold thickness at 8 sites. Adipose tissue% from the sum of skinfolds and/or via body density were calculated for general and athlete specific equations (SKf-AT %). The relationship, i. e., proportional bias, fixed bias and random error (SEE) between DXA-AT % and AT % derived from the 6 skinfold equations were determined using least squares regression analysis. Skinfold AT% estimates were underestimated relative to DXA-AT % across all skinfold equations except that of Durnin and Wormersley [9] (D&W-∑(4AT %)) (16.7 ± 3.4 vs. 16.6 ± 4.0 %). All equations demonstrated 95 % prediction intervals ranges exceeding ~10 %. Each equation failed to predict AT% relative to DXA within an accepted ± 3.5 % anthropometric error rate. It is recommended that the conversion of absolute skinfold thickness to an AT % is avoided and that the skinfold equations assessed herein are not utilised in Gaelic games players. Alternate 'sum of skinfold' approaches should be considered.

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confidence: 99%