Near-infrared apparatus and method for determining percent fat i

Details Near-infrared apparatus and method for determining percent fat i Near-infrared apparatus and method for determining percent fat i

1988-10-03

1990-05-22

Fields, Carolyn E.

Radiant energy

Invisible radiant energy responsive electric signalling

Infrared responsive

2502521, 2503581, 128664, G01N 2155

Patent

active

049280147

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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