20 minute TREADMILL WORKOUT ℅ @siss_fit . Side shuffle- 20 seconds Side shuffle- 20 seconds Jog- 40 seconds Sprint- 40 seconds Walk- 60 seconds X5 . You don’t have to be a runner to tackle this 20-minute tread workout. Feel free to walk (instead of jog) and walk at 10% incline (instead of sprint).