I'm now doing week 3 for the second time as I don't feel I can do a 5 minute run as yet. I thought I was reasonably fit as I am a regular gym goer ( three times a week weights and three times a week cross trainer),but this program is kicking my a**.
I am using a treadmill in the gym and since starting the program I have had to decrease my walk speed from 5 down to 4.8 Kph and my run speed from 8 down to 7.6 kph. Is this normal? By the way I am doing the running instead of the cross trainer. Like I said I had no problems doing 45 minutes on the cross trainer hearts rate program in the hard zone, but I am finding this running lark really hard.