Proform Front Runner Treadmill

front runner
Front-runner is a term to describe the leader in a race, whether political or athletic. The term arose from the close symbolism between political campaigns and athletic running events. The term is used in the U.S.
An athlete or horse that runs best when in the front of the field
The contestant that is leading in a race or other competition
a competitor thought likely to win
The Front Runner is a small day sailing dinghy. It is a high-performance, responsive, and comfortable one-design class sailboat. It is stable and user-friendly, having an immense cockpit with all control lines leading aft (to the cockpit).

treadmill
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
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

proform
A pro-form is a type of function word or expression that stands in for (expresses the same content as) another word, phrase, clause or sentence where the meaning is recoverable from the context.
A proform is an expression (typically a word) which has no specific content of its own, but which derives its content from its antecedent.
a form representing another constituent. Pronouns are common proforms, e.g. My little sister saw herself in the mirror.