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KIN 3600
Lec 14
| Question | Answer |
|---|---|
| Anaerobic Threshold | power output & oxygen consumption that increase blood lactate concentration w/ an increase incremental exercise |
| What is mass? | quantity of matter in an object |
| Mass & gravity | force |
| Work | How much force applies across a distance |
| Power | Rate or work -Unit time = 1 second |
| How much work are you doing in 1 second? | 1NM (1J) = 1 Watt (W) |
| What is metabolism? | Arithmetic sum of energy exchanged during all the energy transformation process in an organism |
| What is arithmetic sum? | Some energy liberated, other energy transformation require energy |
| Metabolic rate (energy expenditure) | Amount of energy liberated due to exergonic (+) reactions (-) Synthesize Endergonic reaction |
| Direct Calorimetry | The rate of energy expenditure may be measured by measuring the rate of heat liberated by the body during rest or during various physical activities |
| there is a direct linear relationship between what? | between the rate of heat liberated by the body and the metabolic rate |
| Metabolic rate | water flow rate X (water temp out – water temp in) |
| Indirect Calorimetry | The amount of energy transformed per unit of oxygen used will also be different when utilizing CHOs as opposed to fats |
| Energy equivalent of Oxygen | Amount of energy transformed in organism per unit of O2 consumed |
| Energy equivalent of O2 when pure carbohydrates utilized | 5.05 kcal/L O2 consumed |
| The Energy equivalent of O2, when pure fats are utilized | is 4.7 kcal/L O2 consumed |
| Respiratory Quotient (RQ) | Ratio of the rate of CO2 produced to oxygen consumed -1CO2 : 1O2 -RQ = 1 |
| Respiratory Exchange Ratio (R) | Ratio of rate of CO2 expired to O2 consumed R = Vco2 / Vo2 |
| If R is unknown | 4.82 or 5 Kcal∙LO2-1 is used in the calculations of energy expenditure |
| Basal metabolic rates (BMR) | the rate of energy expenditure during absolute rest |
| Factors Affecting BMR | -Weight -Body Surface Area -Age & Gender -Fitness level -Body composition -Genetics -Metabolic disease (hypothyroidism and hyperthyroidism) |
| Basal O2 Consumption at rest (BMR) value is unknown | 3.5 ml·kg-1·min-1 is used for the calculations of energy expenditure |
| Metabolic Equivalent (MET) | 1 MET is the rate of resting energy expenditure or the rate of resting O2 consumption - |
| 1 MET | 3.5 |
Created by:
rmart11
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