What makes Tai Chi, Tai Chi? One of the things you often hear said is that whole body movement, or whole-body coordination, is what makes Tai Chi different to other kung fu styles. How this is interpreted in Tai Chi Chuan, however, seems to vary slightly, moderately or even hugely depending on the style of Tai Chi you’re watching or doing.
I was scrolling through the excellent 1932 book by Chen Ziming (I’ve discussed this book before) on Chen style small frame called “The inherited Chen family boxing art”. I did a search of the text for “whole-body coordination” and it appeared 34 times! That gives a good sort of indication on how important he thought it was to his Tai Chi Chuan. In fact, the phrase “The entire movement must have whole-body coordination.”, appears in almost every single description of a move in his form.
Earlier in the book he lists the key points of Tai Chi boxing and says:
 WHOLE-BODY COORDINATION
Your four limbs and hundreds of bones are to be moving cooperatively. This is called “whole-body coordination”. Hence in Taiji Boxing: “When one part moves, every part moves, and when one part is still, every part is still.”
He’s quoting “When one part moves…” from the Tai Chi Classics there. But what does he mean?
In some styles of Tai Chi the footwork is lively and continually moving. Wu (Hou) style springs to mind as a good example. In others, there are moments where the practitioner seems to almost stop in a semi-static posture for a moment or two – Chen style springs to mind. It’s therefore no surprise then that people’s definition of what “whole body movement” actually is can vary considerable.
It clearly doesn’t mean that the feet have to be moving all the time. My belief is that it’s more to do with engaging the whole body in a movement – think of the difference of lifting a heavy weight with just your arms, or getting your whole posterior muscle chain involved with the movement, all the way down to the feet. A Judo hip throw is a good martial example. When picking up a heavy object (like a spear) it’s more obvious when you are engaging the whole body and when you’re not. With a solo bare-hand form it requires an extra level of awareness to discern if you are engaging your whole body, or not, in a movement. You can essentially cheat because with no weight to carry, there are no consequences to using local movement. This is one of the advantages of practicing archaic weapons forms, even in the modern age – they give you direct feedback on your whole-body coordination.
On a more subtle (esoteric?) level, whole-body movement can refer to dantien controlled movement, as often exhibited in silk reeling exercises. This is where you’re controlling the extremities (the limbs) by subtle movements from your dantien. This is a step beyond simply activating the posterior muscle chain in a movement, it’s a different way of moving altogether, and well worth investigating. Find out how to do it here.
Whether you subscribe to the belief that a dantien exists, and can be used to control the limbs, or not, you’ll notice that Chen Ziming only listed whole body coordination as one of the key points of Tai Chi boxing. There are others – 10 others in fact. All of which are worth noting too:
Key Points for Taiji Boxing
 The Nature of the Art
 Sequence of Training
 Whole-Body Coordination
 Switching Techniques & Transitional Movements
 The Body Performs & the Mind Ponders
 Do Not Be Greedy or Rash