Hi, I'm really interested in starting some kind of tabata/HIIT type of exercise. At the moment, I don't do that much exercise, mainly a couple of yoga or pilates workouts a week (vinyasa or ashtanga yoga so pretty active) and I can probably run a couple of kilometres without too much effort but don't do so regularly. I did Jillian Michaels Six Week Abs the other day and pretty much managed level 1 (found burpees hard though) and could do the plank stuff easily due to yoga/pilates training. Am I fit enough to start tabata? All the websites I've looked at say you need to be 'fit enough' but not sure whether this means properly fit or just not couch potato... tia