Patent attributes
Disclosed herein is a stair climber that includes a frame having a base, an upper axle and a lower axle, and steps revolvably coupled to the upper axle and the lower axle. The stair climber also includes an electric brake mechanism operating in generative mode and coupled with the steps and configured to provide a variable resistive force. Also included is a controller that receives an indication of a selected exercise mode from a user that includes a first speed, a second speed, and a difficulty level. The controller also balances a load, in a learning mode, on the steps based a user's weight at the first speed, and controls, in response to the user applying an additional load to the steps via a rail system, the electric brake mechanism to apply the difficulty level of the selected exercise mode and prevent the steps from exceeding the second speed.