Nope, it wasn't in there. I did look it up, though, elsewhere. The site I found said that sex doesn't burn very many calories. (I think it was 19, for someone of my size, for an hour.) That surprised me, as I'd heard otherwise. But I only looked at the one site, out of silly curiosity.

I don't know that I'd put it under strength training as much as general aerobic exercise, though. But as you said - it depends on the specific activity. :)