Match the following. duration
1. type of exercise
mode
2. how often an exercise is performed
frequency
3. amount of time needed to perform an exercise
intensity
4. level of effort needed to perform an exercise

You are travelling on a long non-stop flight from tahiti to tampa. you have been in the air for about 7 hours and have not moved, since you boarded the plane at tahiti. you need to use the rest room and on standing up feel dizzy. the best explanation for your dizziness