When viewing the army fit website it gives a programme and podcast, however, I can't figure out the differences between the running speeds. In fact, I asked a mate who didn't have a clue and also rang a local personal trainer whose answer was that I should only run as fast as I am comfortable! So, could someone please decipher the following: What is a jog? What is a medium paced run? What is a good pace??? What is a fast run? What is a steady run? What is a hard run? I think I can figure out that a brisk walk is walking as fast as you can without breaking into a jog/run!