Before you dive in and start the Hundred Push Ups Program, you should take an initial push ups test.
  The test will highlight your current fitness level and determine where to start and how to plan your push ups training program. To perform the test, simply execute as many good-form push ups as you can. Don't cut corners and please don't cheat - the last thing you want to do is end up in the wrong level of the training program! The results may be humbling, but trust me, honesty is the best policy if you want to maximize your strength gains!
  Before starting Week 1, I recommend taking a couple of days to familiarize yourself with the program and recover from the exertion of the initial test. You'll be required to work out three times per week - Monday, Wednesday, Friday worked well for me.