Part I mainly concentrates on the obliques as well as on the back. These exercises are very challenging, and beginners are likely to feel overwhelmed. If you suffer from shoulder problems, these exercises could be too demanding because most of them require a lot of shoulder support, such as side plank e.g.
Part II concentrates on the upper and lower abs. These exercises are also very demanding because of many repetitions. This is hard but very effective. Jennifer gives helpful instructions how to exercise correctly. If you work with this DVD regularly, nothing stands in the way of a well-shaped belly.
If you need a great background, like sea, beach, etc. and a styled instructor then you will not be able to cope with this spartan backdrop.
