Thankfully I think just week 4 and 5. For what I thought was week four I only did 4 reps of walk 2 jog 3. So I'm going to try to work up to 6 reps this week but I'm going to be behind you for sure. The 5 reps kicked my butt last night. Tomorrow I'll do 5 again and then hopefully I can get to 6 over the weekend. I may try to start cutting down my walking time as I go so that I can move on to the 1 minute walk by sometime next week too.