For Walk runners, In this workout, our goal is to extend the time you spend running. In the base training phase, the motto is to walk hard and run easy. For those that are running then, the goal is to run at a slightly higher pace or tempo. (These runs also known as tempo runs)
In workout one, the goal is to run harder for shorter distances. In this workout, you are running more comfortably than workout 1, but for longer distances. Longer than what you are used to.
The object is to cover ground, but not to overextend oneself in the running portion of the workout. For example, if you have a walk-run ratio of 4 minutes of running followed by one minute of walking then increase the running time by another minute or two.
In this case, we are going to running easy, but for greater and greater distances. With this method, some people may now find they can run the entire length of the workout. This is great if it happens, but it should not be the primary goal. When you do get tired, it is time to walk. Unlike the base training, this walk should be effortless so you can recover. Once you have FULLY recovered, you will start your next extended run.