1. Explain the concept of energy balance.
Energy balance is essentially the balance in the body between amounts of energy consumed and expended. The energy consumed, energy intake, is the caloric or energy content of food provided by the macronutrients. The energy that is expended, energy output, is the use of calories or energy for basic body functions, physical activity, and processing of consumed foods. If someone is in negative energy balance that means their energy intake is less than their energy expenditure and they will lose weight. If they are in positive energy balance that means their energy intake exceeds energy expenditure and they will gain weight.
2. List and describe the three main components of energy expenditure.
The three main components of energy expenditure are resting energy expenditure, physical activity, and thermic effect of food. Resting energy expenditure is the minimum energy needed to maintain your basic physiological functions. There functions include heartbeat, muscle function, and respiration. Physical activity varies from person to person and in some cases can include a significant amount of energy expenditure. The energy cost will depend upon the type of activity, duration, and intensity. Lastly, the thermic effect of food is the energy needed to digest, absorb, transport, metabolize, and store ingested food. The thermic effect of food takes up about 10% of our total energy expenditure and is also influenced by various factors.
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Explain the three main factors that determine energy expenditure in activity.
The three main factors that determine energy expenditure in activity are type of activity, duration, and intensity. The type of activity refers to things like walking, running, swimming etc.…The amount of energy expenditure will also vary greatly depending on how long you perform those
Energy balance is essentially the balance in the body between amounts of energy consumed and expended. The energy consumed, energy intake, is the caloric or energy content of food provided by the macronutrients. The energy that is expended, energy output, is the use of calories or energy for basic body functions, physical activity, and processing of consumed foods. If someone is in negative energy balance that means their energy intake is less than their energy expenditure and they will lose weight. If they are in positive energy balance that means their energy intake exceeds energy expenditure and they will gain weight.
2. List and describe the three main components of energy expenditure.
The three main components of energy expenditure are resting energy expenditure, physical activity, and thermic effect of food. Resting energy expenditure is the minimum energy needed to maintain your basic physiological functions. There functions include heartbeat, muscle function, and respiration. Physical activity varies from person to person and in some cases can include a significant amount of energy expenditure. The energy cost will depend upon the type of activity, duration, and intensity. Lastly, the thermic effect of food is the energy needed to digest, absorb, transport, metabolize, and store ingested food. The thermic effect of food takes up about 10% of our total energy expenditure and is also influenced by various factors.
3. …show more content…
Explain the three main factors that determine energy expenditure in activity.
The three main factors that determine energy expenditure in activity are type of activity, duration, and intensity. The type of activity refers to things like walking, running, swimming etc.…The amount of energy expenditure will also vary greatly depending on how long you perform those