Forget what you see on those extreme-weight-loss reality shows. The simple act of walking may in fact be the most helpful form of exercise you're not doing enough.
There are basically 4 types of fast-walking that you do just 4 times a week. This plan lays it all out for you. Just click on the links in the article to get instructions about each type: Brisk Walk; Interval Walk 1; Interval Walk 2; Endurance Walk: and Hill Walk;
Here is the schedule for your 4 week fast-walking plan...