Abstract: A stationary exercise machine comprising an ergonomic device attached to a trolley slidably connected to an inclinable surface. The trolley connected to one or more resistance mechanisms generally opposing one another or gravity. The ergonomic device comprised of a balance board, seat, carriage, bike, or other apparatus intended to carry a user. A method where the user pumps, moving one's body weight in a rhythmic up-and-down, back-and-forth motion, to repetitively move the ergonomic device along the inclinable surface while standing, squatting, kneeling, sitting, laying, or otherwise resting, balancing, or riding on the ergonomic device, and where at least one resistance mechanism stores and releases mechanical energy produced by the user's pumping action.