lec_6_measuring_ee

lec_6_measuring_ee - Measuring energy expenditure Calorie...

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Measuring energy expenditure Calorie The amount of energy that raises one gm of H 2 O one degree C. Very small unit, thus we report kilocalories (kcal) = 1000 calories. Example: A snickers bar has about 200 kcal of energy Conversion to Joules:
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Metabolism The sum of all transformations of energy and matter that goes on within an organism. Basal metabolic rate (resting daily energy expenditure): Energy expended over 24 hours for a person in the “resting” state. e.g., your book gives a value of 1471 kcal per 24 hour for an average college aged woman. How many snickers bars to support her basal EE?
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Exercise Energy Expenditure EE can rise dramatically with physical activity e.g., the woman above running at a strong pace for 1 hour could expend as much as 900 kcal/hr. Compare to her resting EE per hour: Athletes training very hard? Riders in the Tour de France?
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Question: How can we measure the sum of all transformations of energy and matter that goes on within an organism in order to quantify BMR or EE during
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This note was uploaded on 04/13/2008 for the course ABIO 365 taught by Professor Brutsaert during the Spring '08 term at SUNY Albany.

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lec_6_measuring_ee - Measuring energy expenditure Calorie...

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