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