Regulation of Energy Expenditure

These flashcards cover key concepts related to energy expenditure, metabolism, and thermoregulatory mechanisms discussed in the lecture.

Total Daily Energy Expenditure (TDEE)

The total amount of calories burned by an individual in one day, including all activities and metabolic processes.

Basal Metabolic Rate (BMR)

The rate of energy expenditure measured when the body is at rest in a thermally neutral environment, not digesting food.

Resting Metabolic Rate (RMR)

Similar to BMR but measured under less strict conditions, usually within 10% of BMR.

Thermic Effect of Feeding (TEF)

The increase in metabolic rate after ingestion of food, typically accounts for 8-12% of daily energy expenditure.

Adaptive Thermogenesis

The process by which the body adjusts energy expenditure in response to changes in the environment, diet, or body temperature.

Non-exercise Activity Thermogenesis (NEAT)

The energy expended for everything we do that is not sleeping, eating, or sports-like exercise.

Weight Gain

Occurs when energy intake exceeds energy expenditure over a period of time.

Sympathetic Nervous System (SNS)

Part of the autonomic nervous system that can influence energy expenditure and body weight homeostasis.

Uncoupling Protein 1 (UCP-1)

A protein found in brown adipose tissue that plays a role in thermogenesis by allowing protons to return to the mitochondrial matrix without generating ATP.

Ca2+ Transport Efficiency

The effectiveness of calcium transport mechanisms in muscle cells, which can affect energy expenditure.