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Answer :
Final answer:
To calculate the energy expenditure of a 20-year-old male watching TV for one hour, we use the METs value for sitting relaxed (1.0) and the individual's weight converted to kilograms (63.05 kg). This results in an energy burn of approximately 63.05 kilocalories.
Explanation:
The student's question relates to calculating the energy expenditure of a 20-year-old male by considering the Metabolic Equivalent of Task (METs). If the individual sits and watches TV for one hour, we generally consider this is an activity with a low MET value, typically around 1.0 METs. To calculate the kilocalories (kcal) burned during this activity, the following formula can be used:
kcal burned per hour = MET value × weight in kg × time in hours
We need to convert the individual's weight from pounds to kilograms, which we can do using the conversion factor that 1 kilogram is approximately 2.20462 pounds. This results in:
139 pounds / 2.20462 = 63.05 kg (rounded to two decimal places)
Using the MET value for sitting relaxed, which is typically 1.0, and considering the duration is 1 hour, the energy expenditure calculation would be as follows:
kcal burned per hour = 1.0 METs × 63.05 kg × 1 hour = 63.05 kcal
Therefore, the individual would burn approximately 63.05 kilocalories while sitting and watching TV for one hour.
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