One potential low cost approach for obtaining direct measurements of body fat is near infrared nir interactance. The aims of this study were to model the effect of varying volume fractions of melanin and water in skin over nir spectra and to define sensitivity of nir reflection on changes of thickness of subcutaneous fat.
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Near infrared body fat measurement. Nir a fiber optic probe is connected to a digital analyzer that indirectly measures the tissue composition fat and water at various sites on the body. The body fat percentage bfp of a human or other living being is the total mass of fat divided by total body mass multiplied by 100. This measurement is based upon light in the near infrared spectrum at a wavelength slightly longer than the eye can see. More specifically it is based on the ability of fat tissues to absorb more infrared light than lean tissue which can then be measured as a change in the infrared level. When operating the light wand sends a nearinfrared light beam into the biceps of the dominant arm at specific wavelengths. Body fat includes essential body fat and storage body fatessential body fat is necessary to maintain life and reproductive functions.
Here are the 10 best ways to measure your body fat percentage. The near infrared interactance nir method of assessing body composition is based on the principles of light absorption reflectance and near infrared spectroscopy. Fitness testing tests anthropometry body composition near infrared interactance. Measuring body fat with nir near infrared interactance. Portable analyzers using nearinfrared interactance nir principle have been proposed for the direct measurement of percent body fat. This method uses the principles of light absorption and reflection more specifically transflectance and interactance to analyze body fat.
The futrex control software included in the delivery has some more advantages to offer. For a 7 site measurement in women the chest area near the armpit and area. The percentage of essential body fat for women is greater than that for men due to the demands of childbearing and other. Body fat measurements can now be done much easier faster but with the same precision by using the futrex body fat analyzer. Near infrared interactance uses a computerized spectrophotometer via solid state optics. 3d body scanners use infrared sensors to get a.
Near infrared interactance is one of many measures of body composition which uses a computerized spectrophotometer which has a single rapid scanning monochromator and fiber optic probethis method uses the principles of light absorption and reflection to measure body fat. Futrex works with innovative near infrared measurement technology.