Top: Stella McCartney for Adidas, Shorts: New Balance
I have to admit that I'm not a runner. It hurts my knees and I get bored going at the same pace for an extended period of time. So for me, interval training keeps workouts exciting and challenging. I like to go on long walks which I take up a level by including stair sprints whenever I can. Changing up the intensity in your workout, whether it's sprinting up steps and jogging back down, or increasing the level on the elliptical every few minutes can help you burn way more fat and calories.
For example, and this can be done outside or on a machine, find a steady pace that you feel comfortable but still challenged and keep that for 2-3 minutes, then increase the intensity by sprinting or upping the level for 30 seconds-1 minute. Repeat. I guarantee after doing this for a few weeks that you will slowly be able to workout longer as your endurance and strength builds, which in itself is pretty motivating.
If you don't have a timer, use music to time the sections. Sprint the chorus, walk the other bits... etc.
I did that routine almost daily when I lived in Sydney and walked along the cliffs where the changing level in the terrain allowed me to really play around with this and I was in the best shape of my life.
And just as a side note.. I'm a few hours late but today was National Best Friends Day and you can get these super cute BFF bracelets to support the troops abroad through the American Freedom Foundation! Check out the site here for more info!!