Originally Posted by thingstodo

I've just been reading some cool stuff about short bursts of high intensity stuff. For example, ride a bike for 20 minutes but do 45 seconds high intensity then break for 15 seconds....and do that 20 times. Or run all out for a minute and then walk for a minute and do that for 20-30 minutes.

I've only read about this and haven't seen anything on line to provide a link or anything. Sorry....