stair-climber

noun

stair-climb·​er ˈster-ˈklī-mər 

variants or stair climber

: an exercise apparatus that simulates the act of climbing stairs

You won't have to wait in line for a stair-climber as you do during rush hour at the health club.

—Marlene Adrian

stair-climbing

ˈster-ˈklī-miŋ 

noun

or stair climbing

Gyms and health clubs offer yoga along with stair-climbing machines.

—University of California at Berkeley Wellness Letter

… a proud gym rat who at various times has been a devotee of jogging, stair climbing and aerobics, as well as other popular fitness trends.

—Eric Schlosser

Word History

First Known Use

1986, in the meaning defined above