Da Kine Body Composition Study
Overview
This completed study examined how hydration status and total body water vary across special populations — including athletes and different age groups. The research isolates hydration from lean-mass measurements using multiple body-composition methods, accounting for factors such as skin temperature, moisture, intracellular water, extracellular water, and electrode-pad placement.
The study employs the four-compartment model (lean mass + fat mass + bone + water) as the gold standard. Assessment technologies include:
- Dual-energy X-ray Absorptiometry (DXA)
- Air-displacement plethysmography (BodPod)
- Underwater weighing (UWW)
- Bioelectrical impedance spectroscopy (BIS)
- Bioelectrical impedance analysis (BIA)
- Deuterium dilution analysis (DDT)
- 3D optical scans
- Anthropometry and skinfold techniques
Objective & aims
Previous research demonstrated that “skin temperature, moisture, and placement of the electrode pads can over-predict an individual’s TBW and under-predict an individual’s fat mass.” This study aims to develop correction factors accounting for skin hydration and temperature variations to improve four-compartment-model accuracy.
Publications & presentations
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Cataldi D, Bennett JP, Quon BK, Liu YE, Heymsfield SB, Kelly T, et al. Agreement and precision of deuterium dilution for total body water and multicompartment body-composition assessment in collegiate athletes. The Journal of Nutrition 2022 Jun 6. DOI: 10.1093/jn/nxac116
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Cataldi D. Muscular function and strength predictions using DXA in collegiate athletes. Poster, 2022 Biomedical Sciences & Health Disparities Symposium; 2022 Apr 7; Honolulu, HI.
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Cataldi D, Bennett J, Quon B, Liu E, Kelly N, Heymsfield S, et al. Predicting muscular strength with 2D optical in a diverse adult population. Oral presentation (virtual), 3DBODY.TECH Conference & Expo; 2021 Oct 19; Lugano, Switzerland (hybrid).