Energy source, reserve, transfer & utilization
• Measuring the metabolic rate * Direct calorimetry * Indirect calorimetry Principle: The law of constant proportions Several related concepts Thermal equivalent of food Thermal equivalent of oxygen Respiratory quotient (RQ) Classical & simple measurement O2 consumption & CO2 production measuring Closed & opened measurement
Distribution of human body temperature in different environment temperature
• Thermogenesis & thermolysis * Thermogenesis & its regulation Basal metabolism, Food specific dynamic effect, Muscular motility, Shivering & non-shivering thermogenesis Regulation: Thyroid & other hormones Sympathetic nerve, NA & A * Thermolyesis & its regulation Radiation, Conduction & Convection Insensible perspiration & Sweating Regulation: Secretion of sweat Skin circulation