Comparison of body composition assessment by hydrodensitometry, skinfolds, and multiple site near-infrared spectrophotometry

Article Abstract:

A comparison of body composition measurement was done using seven-site skin folds (7SF), underwater weighing (UWW) and near-infrared spectrophotometry (NIR). Determination by NIR at eight sites showed that there was a significant underprediction of percent body fat (%BF) independent of measurement site. Hydrodensitometry readings have a 4% error of prediction for percent BF and optical density readings were not significant predictors of UWW percent BF when using body mass, stature, activity level and frame size. Seven-site SF seems a better predictor for percent BF compared to NIR.

Optical measurements, Optical measurement

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Precision and accuracy in a metabolic monitor for indirect calorimetry

Article Abstract:

The precision and accuracy for gas exchange, respiratory quotient and energy expenditures of Deltatrac Mk 1 metabolic monitors have been evaluated. The within-machine and between-machine performance of three Deltatrac monitors have been compared through five consecutive 10-minute gas infusion tests. Results show that these monitors are accurate within 3% for gas exchange and energy expenditures. This finding reveal that these monitors are well suited for longitudinal studies of substrate utilization.

Equipment and supplies, Basal metabolism, Calorimetry

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The potential of near infr-red interactance for predicting body composition in children

Article Abstract:

This article investigates whether the skinfold thickness test or the near infra-red interactance technique is more adept in assessing children's body composition.

United Kingdom, Statistical Data Included, Methods, Children, Physical diagnosis, Medical examination

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