Which term refers to any physical activity that uses your arms and legs and requires a large amount of oxygen for a long period of time?

in addition to type, time, and frequency, which other element is part of the fitt formula?

intensity
inactivity
inertness
isometric

which item is a common barrier to physical activity?

lack of confidence
lack of knowledge
lack of financial resources
lack of experience

isokinetic
anaerobic
kinesthetic
aerobic