HBP PE2 requires 5x15 pushup. For those who lacked the muscle endurance to do 5x15 + iM non stop, how did you improve it? Did you do any extra effort, like adding volume or grease-the-groove?
I have no problem doing 5x15 pushup plus the iM if there are 2-3 mins rest between set. But without rest, I can only do 15, 15, 15, 10, 6. Just curious for those who had the similar experience, how did you improve?
Thanks in advance!