In one aspect, a computer-implemented method for generating commands used to modify a plurality of limit key values includes determining a current value for each of the plurality of limit keys, determining a new value for each of the plurality of limit keys, and generating a normalized internal key for the current values and the new values of each of the limit keys. A user engaging foot stabilizer is pivotally associated with the front leg, and a thigh support is adjustably mounted on the front leg assembly or main support frame for engaging the thighs of a user when performing exercises while supported on the bench. The expanded configuration allows the strip to be wound about the body while the strip is being removed from a surface.