At the suggestion of visionteacher, I decided to give this a try.
I decided to start at Level 1, because I'm quite out of shape. Also, as I'm trying to get back in shape for circus endeavors, I added hanging leg lifts to the circuit. While the other exercises work core muscles as stabilizers, the most important strength moves in circus are: pulling yourself up on a bar (rope, fabric, ext) as in pull-ups and hanging on a bar and lifting your toes up to the bar (or under the bar). From past experience, the best way to guarantee that you can do this over and over when performing or practicing circus acts is to do it over and over in strength training.
Therefore, Day 1, Level 1:
32 sets in 20 minutes.
I'm super impressed with myself. Pull-ups were kipped, but done without assistance (woo hoo!). I thought I'd max out around 5. I did the push-ups on parallettes to minimize existing wrist and elbow problems. Surprisingly enough, the squats were the hardest part.
Take home lesson: Invest in a water bottle. I wasted a lot of time walking to the other side of the gym to take sips from the water fountain.