You can after six weeks, according to www.hundredpushups.com.
I started doing it this week, so we'll see how it goes. My initial "exhaustion" set was 10, and this morning, I got to 20 after my 4 sets. You do 4 sets of a set number of pushups, then do as many as you can in the 5th set. So today, I did 8, 10, 7, 7, then exhausted with 20. Towards the end you increase the number of sets and decrease the amount of rest time in between.
I started doing it this week, so we'll see how it goes. My initial "exhaustion" set was 10, and this morning, I got to 20 after my 4 sets. You do 4 sets of a set number of pushups, then do as many as you can in the 5th set. So today, I did 8, 10, 7, 7, then exhausted with 20. Towards the end you increase the number of sets and decrease the amount of rest time in between.







