I have just rediscovered HIIT aka high intensity interval training. I used to do this in the gym 2-3 times a week years ago.
For anyone that wants to do cardiovascular exercise, treadmill, bike, xtrainer etc. but gets bored at the prospect of sitting on a piece of equipment for 45 mins a time try this:
Do a light warm up for 4-5 mins then
30 sec Fast
30 sec Slow
30 sec Fast
30 sec Slow
30 sec Fast
Do that for as long as you can, fast being giving it absolutely everything, like you are running/peddling for your life then slow right down.
Then cool down for 2-5 mins
You should aim to do it for at least 4 mins for a maximum of up to 20 mins, (if you can do it for 20 mins and you've never done it before you're doing it wrong)
.
Look it up, HIIT