Cardio

Cardio is the medical term used to reference the heart. From Greek kardia: heart.

Also used in reference to exercises and/or equipment intended for cardiovascular fitness and endurance training (aerobic exercise). A common usage of the term is "to do cardio", which means to engage in cardiovascular endurance training for a set period of time, for example running, swimming, jogging, cycling, etc.

[edit] External links

• http://exercise.about.com/cs/cardioworkouts/a/cardio101.htm