Try This New Crunch Exercise: Only 5 Minutes Of This Exercise Will Replace You An Hour OF Effective Training (VIDEO)
Surely this program seems like a very strenuous but in fact it really is not. However you must pay attention to proper breathing. Below you can see a video with instructions and all you have to do is carefully follow all instructions. You must think that it is important only to practice, but here you have to pay attention on how you exercise.
With proper exercising and proper breathing, you will increase the effect of training. With the help of these exercises you can achieve the desired results in just 7 days with only 5 minutes of training a day.