The body fat percentage is a measure of fitness level since it is the only body measurement which directly calculates a persons relative body composition without regard to height or weight. In near infrared interactance nir a specialized probe is placed against an area of the body emitting infrared light that passes through muscle and fat.
Body Composition Assessment Bca Ppt Download
Infrared body fat measurement. This method uses the principles of light absorption and reflection more specifically transflectance and interactance to analyze body fat. For some devices you stand on a rotating platform for. Portable analyzers using nearinfrared interactance nir principle have been proposed for the direct measurement of percent body fat. 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. The widely used body mass index bmi provides a measure that allows the comparison of the adiposity of individuals of different heights and weights. The nir machine then uses this information along with age and activity level to estimate body composition.
When operating the light wand sends a nearinfrared light beam into the biceps of the dominant arm at specific wavelengths. Near infrared technology for measuring body fat was developed by the us. 3d body scanners use infrared sensors to get a detailed look at the shape of your body the sensors generate a 3 d model of your body. Government department of agriculture. Near infrared interactance uses a computerized spectrophotometer via solid state optics. One potential low cost approach for obtaining direct measurements of body fat is near infrared nir interactance.
Gallery of Infrared Body Fat Measurement
