What is better for your heart long term – steady state cardio or HIIT?
In general, the wiser choice is going to be HIIT and this will be true not just for the heart but most of your other fitness parameters as well. Good news for busy people who are not lazy.
But there is also a caveat. If you go at HIIT in FULL METAL GONZO mode without doing the prep work, you’ll probably end up with a few bruises, if you’re lucky. If you’re unlucky, a soft tissue injury of some description that might put you out of action for awhile.
So you may have to work up to a level of fitness that you are able to really push your HIIT training hard and get the most out of it.
Most people do steady state cardio at sub-optimal levels, sort of jogging merrily along at a nice slow pace, or on a cross-trainer doing the same thing in the same way day after day. Certainly better than staying on the couch binge watching GOT.
But not much.