nslecture17notes 2 - Lecture 17 Part II VI. Composition of...

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Lecture 17 Part II VI. Composition of “Average” Human Body - majority of the average person's weight – water - water – needed to get muscle enzymes and digestion to work B. breakdown of avg. 150 lb human body: - 60 lbs water, 30 lbs fat, 30 lbs muscle, 30 lb bones - if you want to get a measure of energy in body: can exclude bone tissue - we want to measure amount of lean muscle mass and fat in order to determine composition of human body - caloric value of muscle (4 cal/gram) and fat (9cal/gram) much different Methods of Measuring Body Composition: VII. Underwater Density - Archimedes Principle – measure body's density (amount of lean and fat body mass) by taking the difference b/w body's weight on land and in water - Weight on land – Weight on water = Body Density - density of lean body mass is known as is density of fat - difference b/w weight in air and underwater – yields a value from which percent fat can be derived - just go on a scale and dumped under water to measure water weight
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This note was uploaded on 03/16/2010 for the course NS 1150 at Cornell University (Engineering School).

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nslecture17notes 2 - Lecture 17 Part II VI. Composition of...

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