Yeah, as long as I'm in a good frame of mind I LOVE doing supine groin progressive in the tower. Now, I'm a very visually-oriented person. So what I did was I bought angled glasses from amazon so when I'm lying on my back I can see my flat screen TV without any effort. Then typically I'll watch a tennis match or basketball game or something when I'm in the tower. I rarely just lie there unless I'm really beat and just want to relax and decompress. But it's great for that, too.
But then there are our ecises on the flip side of the effort coin. Bear crawls, crab walks, inchworms, roller coasters, triangle, extended lateral......great ways to kick your own butt in a short amount of time with no equipment.
Volkl Organix V1 Pro
Pacific Gut 17 gauge mains at 54lbs/MSV Co-Focus 17L gauge crosses at 50lbs