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Energy_balance08 - HNF150 SP 2008 Energy Balance = Energy...

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HNF150 Energy Balance SP 2008 Professor Alaimo Energy Balance = Energy Intake – Energy Expenditure Measuring Energy Intake: CALORIMETER Measuring Energy Intake: Food Composition Tables: Add up kcal value all food and drink consumed Components of Energy Expenditure *Basal Metabolic Rate (BMR) The sum total of all involuntary activities that are necessary for life, EXCEPT digestion and voluntary activities *Thermic Effect of Food (TEF) Increase in BMR due to eating *Voluntary Activities Intentional activities (walking, sitting, biking, etc). Which is the largest component of Energy Expenditure? *BMR *TEF *Voluntary Activities Determinants of Basal Metabolic Rate Controlled by hormone produced by the thyroid gland à Thyroxine *Age *Height *Growth *Body composition *Fever *Stress *Environmental temperature Measuring Energy Expenditure Body Mass Index BMI = weight (kg) [height (m)] 2 = weight (lb) [height (in)] 2 What determines body composition?
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*Eating behaviors *Energy expenditure (BMR, voluntary activities, TEF) What determines eating behavior?
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