Looking over shoulder

I do apologize for the crackling. You can skip this if sound quality matters to you at all! If you persist and do it, you just may find yourself with a lengthened neck.

The previous lesson referred to is From clarifying the hips to turning and lifting the head. And I’ll investigate whether it was my turtleneck sweater interacting with the mic that caused this sound!

Line of Effort

In Body and Mature Behaviour, Moshe writes about the “fixing” of the trunk for the movement of the limbs–not, as we imagine, the general immobility of “core stability,” but finely calibrated to the direction of action, and with the least possible sum total of work in the muscles:

“The trunk by itself is normally not rigid. It consists of two smaller parts, the almost rigid thorax and the pelvis. Thus, before any significant movement can be made, it as necessary that the thorax and pelvis should be more rigidly connected [so that, as a unit, they will be the heavy part and the action of the muscles joining limbs to trunk will move not the trunk but the limbs]. And the stability of the whole body relative to the ground should be increased in the plane in which work is to be done. Among all the numerous possible configurations of the segments of the body in each case there is a group in which the total amount of pull in all the muscles of the body is the smallest.” (p. 54, beginning of Chapter 7)

You can think of this lesson as an exploration of that idea.

Tilting legs on stomach

Two days after the 2011 Canadian federal election, we have a deep exploration of the dynamics of tilting and looking left and right.

Somehow I missed the obvious point that looking right drives your knees left, and looking left drives your knees back right. All those liberals who voted conservative at the last minute, driven by the rise of the NDP.

Dragging knees to the stomach

I haven’t decided whether this lesson is about attaining freedom from/using the floor, or the amazing things that happen if you refine a pathway for the lower leg that stays parallel to the spine through a range of folding and extending. Or what. It’s a follow-up on a missed recording two weeks ago, but don’t worry. We could have done this one first anyway.


This extensor lesson may have you seeing the world in a whole new way. What other limitations in the world are limitations in your own organization?

Oh dear; philosophy and sociology rear their heads. I’m not really into personalizing responsibility like this. Let’s have a long blog post about that when I’m not heading off to catch a plane.

The Foot and its Movements in Space

Factoid verification, after the lesson. There’s actually 26 bones in each foot….making one quarter of the bones in the human body, but nowhere near 66! And here’s your sensory and motor homunculus images to contemplate. You feel more in your feet than you control, a feature shared in a more extreme form by teeth, gums, and genitals, which don’t appear on the motor homunculus. And you comparative control some parts in greater detail that you actually sense in less detail. (Click the image to see.)