I have to rest my elbows. I can't grip & pull anything towards myself without pain, not even a coffee cup. :( So, I've decided to modify L4 so I'm not doing pullups and when my elbows heal, I'll repeat L4 subbing body rows at first and then gradually pullups.
Wk. 1, mod. L4D1, 31 rounds.
I subbed 6 jumping jacks for the 2 pullups, did everything else as rx'd. I was tempted to sub 10 jumping jacks, but I'm glad I didn't. This was a great metabolic workout. I easily maintained a heart-rate that was 85% or 90% of max. throughout.
I don't think jumping jacks would be appropriate for strength day or test day, however. They don't provide enough resistance, even if they do work the heart & lungs. I experimented with medicine ball stand-ups and light dumbell swings, but they hurt too, and not in a good way, so I'm open to suggestions.