I am sure many of us already heard about Pilates is a refreshing mind-body workout. It emphasizes breathing efficiently, corrects the spine, concentrates on smooth flowing movement, it is gentle but also it is challenging and helps you to tone up.
To put this into more technical context, a very nice and simple roll down&roll up sequence would be helpful to understand the benefits of Pilates in short. For instance, the longer the lever the more muscular effort is required to bring about the contraction. So just consider this, by laying down on the mat with engaged core muscles, straight legs and flexed heels, rolling your spine up and down with extended arms over your head and holding weighted balls just to add even more resistance could have more impact on your body than doing abs crunch 20 times with a fast pace.