I discovered an excellent set of podcasts called 'Motion Traxx' which are set at a variety of beats per minute. The music is o.k.... it helps to keep me on track and I fall into the rhythm. I also find counting the beats takes my mind off any fatigue!. I think I run each kilometre the same but my fitbit disagrees... I must slow down along the way!! I've been using the 180 beats per minute and it takes me 36 minutes to do the 5k. So in order to break the half a hour barrier I'm guessing if I up the podcast to the 185 beats per minute I might just do it?!! Is anyone else using bpm during training?