I'm not 20-something, either, but I'm thinking about starting this challenge as well, but not sure if I'm physically ready yet. I could do 60 pushups in 4 sets of 15 back in January, but after some surgery at the end of the month I can now do 20-24 (two sets of 10-12 with a small rest in the middle). I'm going to watch this thread and see how you guys are doing, might try joining up in the next couple of weeks if my chest muscles still feel good.
Good luck everyone!
ETA- ooo, just saw the situp one. That one I can start right away! I did 64 before I died off last time I exercised (been doing my own informal program for a while now, started out able to do 5...) so I guess I start in week 3.

) I go to the gym MWF and do the treadmill at home on TThSa so I will add the push-ups and sit-ups to my at home routine.
