HNF 150 Lecture Notes - Lecture 23: Basal Metabolic Rate, Thyroid, Thyroid Hormones
23 Apr 2019
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Required reading: sizer whitney: chapter 9; or byrd-b chapter 10, bacon"s article on weight science examining the evidence, optional: check really helpful stuff. Learning objectives: be able to state the three components of the body"s energy expenditure and how much each contributes to energy expenditure. Basal metabolic rate (bmr): the sum total of all involuntary activities that are necessary for life, except digestion and voluntary activities (heartbeat, brain activity, etc. ) Thermic effect of food (tef): increase in bmr due to eating -- energy needed for digestion, processing, storage of our food nutrients. Voluntary activities: intentional activities (walking, sitting, biking, etc. : describe the roles of bmr and several other factors in determining an individual"s daily energy needs. Bmr is controlled by the hormone, thyroxine, produced by the thyroid gland. Defined as the rate at which your body uses energy when you are resting in order to keep vital functions going such as breathing.
