Don't have enough time to put in an hour or two at the gym? Never fear! You can burn fat, build muscle, and strengthen your heart in only 30 minutes.
The trick is making these 30 minutes matter. Taking a 30 minute stroll is great, but if your goal is to burn fat you won't see many results. It takes interval training and a mix of cardio and weight training to get the most out of your workout.
High intensity interval training (HIIT) involves short bursts of energy, such as sprinting for 30 seconds, mixed into a steady workout such as jogging. These outbursts will spike your heart rate and will keep it up as you recover.
Try this treadmill workout: http://www.vingle.net/posts/527666
You can do this off the treadmill as well, adjusting your speed manually (imagine that!)
Combining cardio with weight training is also an excellent way to building muscle and burn fat in a short amount of time. Working muscle will help boost your metabolism and tone your body, while cardio will burn fat.
Pilates is great for this combination. Try this core-blasting pilates workout: http://www.vingle.net/posts/527661