Posted: 05/03/2014 at 06:36
As Cougie said, dont try and do a 5k run at a fast speed, do intervals. Do 60secs or whatever you can manage, as fast as you can the rest for 60 secs jogging slowly and repeat. Add more intervals, increase the length of them, reduce the rest in between. Later you can start worrying about doing longer distances at speed but it's not something to try when you're new to it.