So I'm trying to find the right cardio regiment for me with no luck so far. I've tried beginners HIIT (15sec work/60 sec low intensity). I do this on the bike or elliptical but I seem to vomit or nearly vomit every time (grant it, I go pretty hard on the work part 160 rpm on the bike / 250 rpm on elliptical). I recently tried insanity and I just can't do it. It's not really an endurance thing but about 2 years ago I fractured my foot and tore ligaments on a fall. When I do a lot of jumping (which is a common theme in insanity), I experience excruciating pain. I mean I literally have to ice to foot for days after to be able to walk without a limp. So what are my options? Note: running on the foot is more or less fine. Slight pain but nothing that would prevent me from doing it.