Energy Expenditure - metabolism these people have lower...

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Energy Expenditure  3 ways we expend energy: basal metabolism - body processes involving involuntary activities only, such as  breathing, heartbeat, and chemical reactions physical activity Thermic Effect of Food (TEF) - energy expended in digesting, absorbing,  transporting, storing, metabolizing, and otherwise handling food. Amounts to  about 10% of ingested calories Basal Metabolism Involuntary activities only Made up of heartbeat, respiration, and basic biochemical reactions always under  way Basal Metabolic Rate (BMR) - rate at which basal metabolism occurs Resting Energy Expenditure (REE) - the day’s total expenditure through basal  metabolism only REE makes up about 1/3 of total energy expenditure in average person (depends  how much is expended in physical activity) BMR varies per person, some having relatively slow or efficient (“thrifty”) 
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Unformatted text preview: metabolism these people have lower caloric requirements for same lifestyle, will have harder time keeping excess weight off Basal metabolic processes occur in lean tissue Body composition is an important determinant of BMR Physical Activity Energy expenditure through voluntary physical effort **diagram pg 142 body weight makes a difference for a given activity, the heavier you are, the more calories you burn Thermic Effect of Food The energy cost of eating Energy expended digesting, absorbing, transporting, storing, and metabolizing nutrients TEF amounts to around 10% of food intake higher for protein and lower for fat reflects efficiency with which we convert these nutrients to storage forms, like adipose...
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