Pilates principles

The original Joseph Pilates' 8 principles were:
alignment, breathing, centering, concentration, control, precision, flow of movement and flexibility.

These principles are repeated through new Pilates generations, some are omitted and some are added. Romana Kryzanowska, a protege of Joseph Pilates, omits alignment and flow of movement in her book The Pilates Method of Body Conditioning and for example, Allan Menezes, a Pilates pioneer in Australia, adds isolation.

I never really remembered all of these principles when I wanted to name them though I was using them in my practice. It's similar for me to try to name all the states of the USA.  I kind of felt that precision is almost the same as flow of the movement with control and that each of the principles can have more meanings.

STOTT PILATES made it simplier, I think more logical and with modern approach based on anatomy and physiology.
They are 5 of them and include all of the above original principles:
  1. Breathing
  2. Pelvic placement
  3. Rib cage placement
  4. Scapular movement
  5. Head & cervical spine placement
You can watch a video where Moira Merrithew shows each of the principle.

Source: The Complete Guide to Joseph H. Pilates' Techniques of Physical Conditioning by Allan Menezes; Pilates Method of Body Conditioning by Romana Kryzanowska; www.stottpilates.com/faq.html