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Define "total energy output". How does this differ from a person's BMR (Basal metabolism rate)?

Define "total energy output". How does this differ from a person's BMR (Basal metabolism rate)?

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Total energy output is the sum of energy used in all the activites in a day that includes, physical activity, digestion and rest.
It includes three components :  
- Basal metabolic rate
- Thermic effect of food
- Physical activity


Total energy output differ from basal metabolic rate because BMR is the amount of energy used in body functioning only during rest.

BMR is the minimum energy required in the body to regulate metabolic process.
The processes include :
- Nerve impulse conduction
- Heart contraction
- Reabsorption and secretion in renal tubules
- Transport of ions across cell membrane.

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