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HSC 308 E2

Exam 2

Direct Calorimetry heat produced during metabolic processes is measured directly
Indirect Calorimetry by measuring VO2 we get an indirect estimate of energy expenditure
Respiratory Quotient (RQ) ratio of CO2 produced to O2 consumed CO2/O2 - .70-1.00
Respiratory Exchange Ratio (RER) measuring expired air from the lungs can be above or below .70-1.00
Resting Metabolic Rate (RMR) amount of energy required to maintain bodily functions during rest
Resting Daily Energy Expenditure (RDEE) the amount of energy you expend daily at rest - 60-75% of TDEE
Metabolic Equivalent (MET) used to measure or identify levels of activity
Thermic Effect of Food (TEF) represents the energy required to digest, absorb, and assimilate nutrients
Insensible Water Loss water lost as water vapor
Ventilation the movement of air into and out of the lungs
Anatomic Dead Space inspired air that does not reach the respiratory division (150-200ml)
Conducting Division Functions to conduct air to the alveoli, as well as warm, humidify, and filter the air
Respiratory Division Function is gas exchange in the smaller bronchioles and alveoli
Tidal Volume (TV) the amount of air inspired and expired during normal breathing (0.4-1L)
Forced Vital Capacity (FVC) the amount of air inspired and expired during maximal breathing (3-5L)
Residual Volume (RV) the amount of air left in the lungs even after forced expiration (1-1.5L)
Total Lung Capacity the amount of gas contained in the lungs at the end of a maximal inhalation VC + RV
FEV 1.0 Percentage of the FVC expired in one second normal = 85% <70% = COPD
Maximum Voluntary Ventilation (MVV) maximum volume of air inspired in one minute normal = 80-180ml
Minute Ventilation (VE) the amount of air breathed in one minute
Pulmonary Diffusion the exchange of gasses between the air and blood
Bohr Effect increases in temperature and acidity cause the oxyhemoglobin dissociation curve to shift down and to the right
Ventilatory Equivalent ratio of minute ventilation to oxygen consumption VE/VO2
Ventilatory Threshold during high intensity exercise, minute ventilation increases disproportionately to the increase in VO2 ventilatory equivalent>30
Created by: 645144477