I’ve become more interested recently about concerns of Yogis on the effects of standing poses on the SI joint and the lumbar spine. I found a new blog about yoga anatomy that addresses these issues (albeit inconclusively) which I am enjoying. Here is the link to the article on tail bone tucking and here is the article on the SI Joint.
The second article also repeats an idea I’ve been reading about in my new book, Intelligent Yoga which Blackaby labels the Mereological Fallacy. Here is Mcinnes’ take on it: “We do not control specific muscles — we decide over movements. In other words, you don’t choose to flex your quadriceps to extend your knee. You decide to extend your knee and your brain creates a motor plan, which involves flexion of the quadriceps muscles.”