Welcome to the fold, Kinitari 
Yeah the first week can be quite a shock. As people have stated, modify, modify, modify. And if you need to pause the DVD, then do it, especially when you do Plyometrics(hell, even Tony has to take a mini-pause at one point).
Remember that with Ab Ripper X, it's not just abs, it's core, so it's also the hip flexors/upper thighs. I remember my first week doing my first Ab Ripper X and then my first Plyometrics, and then having to go out(it was 4th of July), and I couldn't stand up straight fully without really feeling it in my upper quads.
Log in your performance in the worksheets, or just jot it down on your own...you will be surprised at your progress. There's the Clap or Plyo pushup exercise that is in Phase 2...the first week, i was so beat from the previous chest/tricep exercises that i could only do 10 knee pushups...then i did 8 knee pushups, 3 of them with a clap, then again the next time, then back up to 10 knee pushups with 4 claps, and then just last friday i did 10 full knee clap pushups. I'm hoping that when I do my next P90X cycle, i'll be able to start doing some regular clap pushups.
That said, don't freak out if sometimes you can't do more than what you did last week, or you do a bit less...as they keep saying, "Do your best and forget the rest".
Yeah the first week can be quite a shock. As people have stated, modify, modify, modify. And if you need to pause the DVD, then do it, especially when you do Plyometrics(hell, even Tony has to take a mini-pause at one point).
Remember that with Ab Ripper X, it's not just abs, it's core, so it's also the hip flexors/upper thighs. I remember my first week doing my first Ab Ripper X and then my first Plyometrics, and then having to go out(it was 4th of July), and I couldn't stand up straight fully without really feeling it in my upper quads.
Log in your performance in the worksheets, or just jot it down on your own...you will be surprised at your progress. There's the Clap or Plyo pushup exercise that is in Phase 2...the first week, i was so beat from the previous chest/tricep exercises that i could only do 10 knee pushups...then i did 8 knee pushups, 3 of them with a clap, then again the next time, then back up to 10 knee pushups with 4 claps, and then just last friday i did 10 full knee clap pushups. I'm hoping that when I do my next P90X cycle, i'll be able to start doing some regular clap pushups.
That said, don't freak out if sometimes you can't do more than what you did last week, or you do a bit less...as they keep saying, "Do your best and forget the rest".