Day “5″ of P90X
I had to take a break when we went to London because I wasn’t taking a laptop with me, and we were planning on doing a lot of walking and biking anyway, so I took a break. Unfortunately, I somehow pulled a lower ab muscle (and I mean *pulled*, not just made sore), and getting out of bed was painful. I waited a few days to rest, while walking all the while, and restarted at Yoga on Wednesday. I couldn’t do some of the moves (plank) because of my stomach muscle, but I did what I could. Yesterday, I did the Legs & Back for the first time. It was nice. I haven’t worked my leg muscles like that in a very long time. They’ve always been really strong and muscular, and most of the body weight exercises I know wouldn’t really work them out much. I learned a lot of new ones that *will* work them out now 
I had trouble with the back exercises – they were all pull-ups and chin-ups, and while I have a doorway bar, I can’t lift myself up, so I took some advice on various forums, and used a chair to get myself up, and let myself down without too much assistance. I’m still having trouble. The next step is to get a set of resistance bands that I can use instead, and then move up to the pull-up bar when I can actually do something there.
My pulled ab muscle is feeling a little better. I can sit up in bed without pain, but sneezing and coughing still strain it a little bit, and anything that specifically targets those muscles is out of the question for a while, so no Ab Ripper for me.
Tonight is Kenpo. I’m still trying to decide if I should do it before or after Brian and I go up to his dad’s in Baltimore..
Possibly Related
Hopefully you mean resistance bands to do assisted pull-ups, and not some sort of banded row motion. Negatives are really useful in some situations, but not something I would suggest for starting out. IMO, they’re useful in a somewhat different way than concentric motions, more as a plateau-breaker than from a gains perspective.
Depending on what kind of pull-up bar you have (i.e., if it’s a tension bar that just holds horizontally on the inside of the door jamb as opposed to those complicated ones that have to be at the top of the frame), you could lower it to a point where you can put your feet on the floor and do an angled pull-up, kind of like an upside-down push-up. The muscles it works aren’t identical to a pull-up motion (it hits the latissimus closer to the spine compared to the outer lats), but it’s a decent substitute, and keeps with the body-weight approach.