I am taking up challenges I found on the hundredpushups.com site.
The site has programs to work up to performing 100 pushups, 200 squats, and 200 situps.
It offers simple info, initial tests to determine where to start, 6-week workout plans that require three 10-minute weekly sessions per goal and more.
There is an iPhone app...but alas I'm a Blackberry user. It's okay because you can print out the whole 6-week program on a single piece of paper and follow instructions to fold it into a booklet that can fit in your purse or wallet.
The site creator can add your name to the lists of people who have taken up the challenges - and then later to the lists of people who accomplished the goals. There are also little badges you can copy and use on your own site when you meet the goal. I want them!
I did the initial tests today. I was able to do 14 modified pushups, 100 situps, and 56 squats.
I did the pushups with my knees directly below my hips. I'll probably have to go through the program a couple times doing various modified versions until I'm able to do 100 regular pushups. The situps actually are crunches (per their instructions). I could have done more squats but one of my knees started to creak and pop. I'm at the age where I can throw my back out rolling over in bed...so I stopped.
They have a link for a 25 pull-up program, but it is under construction. So I found an easy to follow program for chinups on criticalbench.com. It's designed for someone like me who has never done a chinup and likely has weak hands and wrists that need to build up some strength.
I wonder if I'm going to be sore tomorrow. I'll do the next workout either on Sunday or Monday depending on how I feel.