Greetings

Well...I have a 5K to run on October 16.  This is the first race I have ever been in. I have been training a few days a week, and I found a training program, but it seems to easy.  First you have a 5 minute brisk walk.  Then 2 min. run and 2 min walk.  You do this for 30min.  They keep increasing the running over the next few weeks.  What I am unsure about is the 5 minute walk.  Is it really necessary to walk for 5 minutes!!?!?