BMR, Energy Expenditure
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Basal Metabolic Rate is the mimimal caloric requirement needed to sustain life in a resting individual. This is the amount of energy your body would burn if you slept all day (24 hours). Let's look at some factors that affect BMR:
Age: In youth, the BMR is higher; age brings less lean body mass and slows the BMR.
Height: Tall, thin people have higher BMR's.
Growth: Children and pregnant women have higher BMR's.
Body Composition: The more lean tissue, the higher the BMR. The more fat tissue, the lower the BMR.
Fever: Fevers can raise the BMR.
Stress: Stress hormones can raise the BMR.
Environmental Temperature: Both the heat and cold raise the BMR.
Fasting/Starvation: Fasting/starvation hormones lower the BMR.
Malnutrition: Malnutrition lowers the BMR.
Thyroxin: The thyroid hormone thyroxin is a key BMR regulator; the more thyroxin produced, the higher the BMR.
Basal Metabolic Rate is the mimimal caloric requirement needed to sustain life in a resting individual. This is the amount of energy your body would burn if you slept all day (24 hours). Let's look at some factors that affect BMR:
Age: In youth, the BMR is higher; age brings less lean body mass and slows the BMR.
Height: Tall, thin people have higher BMR's.
Growth: Children and pregnant women have higher BMR's.
Body Composition: The more lean tissue, the higher the BMR. The more fat tissue, the lower the BMR.
Fever: Fevers can raise the BMR.
Stress: Stress hormones can raise the BMR.
Environmental Temperature: Both the heat and cold raise the BMR.
Fasting/Starvation: Fasting/starvation hormones lower the BMR.
Malnutrition: Malnutrition lowers the BMR.
Thyroxin: The thyroid hormone thyroxin is a key BMR regulator; the more thyroxin produced, the higher the BMR.
posted by Yolla at 15:09
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