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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