91热爆

Exercise bikes have long been a favourite piece of equipment for exercising but now they are becoming hi-tech.

91热爆 Click's Lara Lewington put the artificial intelligence bike, CAR.O.L to the test.

The bike makes use of high intensity interval training based around the concept that two 20 second sprints within an eight minute gentle cycle is just as good for you as a 45 minute run.

But what is it like to use and how does the workout really feel?