Barbara Workout

5 rounds of: 20 pullups, 30 pushups, 40 situps, 50 air squats
rest exactly 3:00 between each round - For Time
I usually aim at keeping pretty even and my goal is to get below 3:00 for each round and therefor be less than 27:00
I was going pretty much unbroken on everything until the 3rd round where I started to break up the pushups a bit. I was surprised that I was able to go unborken on all situps and air squats. I'm not going super duper fast on the squats but continuously going wtih no rest.
I felt super drained at the end of the workout.
I was nursing a bit of a sore pulled lower back, but took the last 2 days off and warmed up for a while.
Pushups were the killer for me this time. I did all situps anchored with dumbells.