Interval Cardio Treadmill

treadmill
A device formerly used for driving machinery, consisting of a large wheel with steps fitted into its inner surface. It was turned by the weight of people or animals treading the steps
A job or situation that is tiring, boring, or unpleasant and from which it is hard to escape
an exercise device consisting of an endless belt on which a person can walk or jog without changing place
a job involving drudgery and confinement
a mill that is powered by men or animals walking on a circular belt or climbing steps
An exercise machine, typically with a continuous belt, that allows one to walk or run in place

interval
time interval: a definite length of time marked off by two instants
An intervening time or space
A pause; a break in activity
An intermission separating parts of a theatrical or musical performance
a set containing all points (or all real numbers) between two given endpoints
the distance between things; "fragile items require separation and cushioning"

cardio
Aerobic exercise mostly intended to expend calories and burn fat, and of course, strengthen the heart.
Short for cardiovascular exercise. It’s any type of exercise that gets your heart rate elevated (i.e., treadmill, elliptical, swimming, etc.)
Of or relating to the heart
) cardiovascular exercise; cardiovascular; pertaining to the health of the circulatory and respiratory systems