In my Dojo it is basically 'at your own pace' that is emphasised for beginners. Sensei is very firm that we are not to do more than our bodies will allow us to, which for me, helps a lot!! I can manage a whole two hour class now, but a 5 hour weekender I have to sit out about half way through to let my energy levels recoup somewhat!! And being a recently diagnosed diabetic, I listen a lot more to my body!!!