Energy balance
Fourier transform near-infrared (FT-NIR) spectroscopy provides body fat measurements comparable to dual-energy X-ray absorptiometry (DXA) in overweight and obese premenopausal women, making it a valid, rapid, and portable alternative for monitoring body composition changes.
If you are overweight or obese, relying solely on BMI or scale weight can be misleading because it doesn't tell you how much of your weight is fat versus muscle. FT-NIR technology offers a quick, non-invasive, and portable way to measure body fat accurately, similar to expensive lab scans like DXA. This allows for better monitoring of fat loss progress during diet and exercise interventions without the radiation exposure or cost of DXA.
We report here that the FT-NIR method provided comparable measurements of subcutaneous body fat content similar to those of total fat obtained using DXA. The FT-NIR method is a lower cost, easy to use and transport, and, based on comparison with DXA, an accurate method to measure body fat content.
Why this rating
High-quality direct comparison (n=52) with strong statistical correlation (r=0.95) and Bland-Altman agreement against DXA.
Source
Body Fat Content Determination in Premenopausal, Overweight, and Obese Young Women Using DXA and FT‐NIR
Andrea R. Josse et al. · Obesity · 2011
DOI 10.1038/oby.2011.39
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