Decided to try using the podcast of week 1 to increase speed. Plan was jog 5 mins in the warm up walk....run as fast I can in 60 seconds, jog in 90 second recovery x8 and the jog for 5 mins at end. Well you'll be pleased to know that I achieved the 1st 5 min jog and all the fast runs but OMG after the runs all I could do for the 90 seconds was stumble forward in slow walk gasping air!! And at the end could not do 5 min jog but had to walk, and not briskly at that!!!!However, it does feel like I've had a very good workout. Might just try it again next week
For all those just starting I now remember how long those 60 seconds are and how fast the 90 seconds go! Keep going