20 minutes on the elliptical plus 30 minutes walking on the treadmill
Oprah described her home workout on an Octane elliptical followed by treadmill walking.
“I'll do 20 minutes on the elliptical and 30 minutes walking on the treadmill.”Oprah Winfrey
Source: Oprah Winfrey details daily wellness routine (article, 17 Jan 2017)