Near-infrared apparatus and method for determining percent fat in a body
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United States of America Patent
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May 22, 1990
Grant Date -
N/A
app pub date -
Oct 3, 1988
filing date -
Oct 3, 1988
priority date (Note) -
Expired
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Abstract
Method and simplified, lower cost apparatus for determining percent fat in a body wherein near-infrared radiation from at least one, and preferably a single pair of IREDs is transmitted into the body to achieve optical interactance between the body and the near-infrared radiation. Optical absorption by the body at only one bandwidth of the near-infrared radiation is measured. The measured absorption at the one bandwidth of near-infrared radiation is utilized to quantitatively determine the fat content of the body. Data on a plurality of physical parameters of the body, such as height, weight, exercise level, sex, race, waist-to-hip measurement and arm circumference, can be utilized along with the measured near-infrared absorption in the quantitative determination of body fat content. Advantageously, there is no need for labor-intensive factory calibration of each production unit.
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