Chapter 9 Flashcards
Explain which circumstances are considered ‘activity’ and which affect energy costs
activity include laying down,sitting,walking,bicycling,jogging,running
as intensity increases so does metabolic rate
Describe the major methods by which the energetic cost of activity is measured or estimated.
o2 consumption can be measured by use of mask and value system.
-most imprt air breathing method in animal is double labeled water method it gives a long term average and can measure the metabolic rate of an indivi anaimal that is entirely free to engage in animal activity by injection w/ water labeled isotope(deutrim/oxygen-10) method d218o method.
In lab what is used to control speed at which animal locomote?
treadmills, wind tunnels, flumes
In lab used to measure flow and o2?
respiratometers and pneumometorys
what field method gives long term average?
double labeled water
what does double labeled water do?
take animal and inject with radioactive h2o (d218o) and release and recapture.
observing animals in the field is?
time energy budget
energy per kg body mass per sec?
metabolic rate
o2 per gram body mass per hr?
o2 consumption
o2 per gram body mass per km traveled?
cost of transport
can be calculated by weight specific metabolic rate divided by speed?
cost of transport
o2 consumption depends on ___ and ____.
bodysize and speed
minimized at a specific speed?
cost of transport
minimal at intermediate speed
metabolic rate
Vo2max minus resting o2 consumption
aerobic scope
