Archives For June 2013

The line above is paraphrasing Jaap van der Wal, who is an embryologist, and anatomist. (If you want to go deep into his theory, you can watch “The Architecture of Connective Tissue as a Functional Substrate for Proprioception in the Locomotor System“, or you can go on a slightly easier ride here.) I like this line a lot, perhaps because it resonates with my somewhat contrarian nature, and because the lecture by Dr van der Wal that I attended was both exciting and compelling.

I have used this idea to argue, in a workshop entitled ‘Pilates Made Simple’, that Pilates teachers should be cueing movement rather than muscles. This seems to be a widely accepted idea in the world of strength and conditioning, but not so much in the world of Pilates teaching. I was presenting this workshop last weekend and, as expected (because of the company I was in), whilst the idea of cueing movement instead of muscles wasn’t contentious (I think), the ‘brain doesn’t know muscles’ line met with some reasoned resistance. Specifically, someone with a much deeper understanding of anatomy than mine pointed out that brain’s homunculus – its representation of our body – is partly formed by feedback that it receives from receptors within muscles. This caused me to revise my thought process – or perhaps I should say think a little more deeply/carefully about what I mean.

Here’s what I’ve come up with so far. ‘Our brain knows that you’ve got muscle, but it doesn’t know that you’ve got muscles…’ – that is to say, the ‘picture’ that our brain has of our body (which van der Wal says is based upon ‘fascial architecture’) is nothing like the pictures of muscles that we see in anatomy books. So, your brain knows that there is muscle tissue in the area of your arm that is responsible for moving your wrist closer to your shoulder because it knows the area to stimulate to produce wrist-toward-shoulder movements. Your brain does not ‘know’ that you’ve got a bicep brachii muscle, and a brachialis muscle etc. Again, our brain’s representation of our body is based around fascial architecture, and muscle fibres can be viewed as ‘just’ the elastic parts that move the parts of that architecture in relation to each other.

It follows, for me, that any notion that we can selectively fire muscles is largely an illusion. I know when I fire my bicep, because I’ve learned my musculosketal anatomy, and I can see the bit that’s called biceps changing shape. However, I don’t know what else is working, and I doubt that I’m able to isolate my bicep to make that movement. In other words, if I think ‘shorten my bicep’, my brain ‘knows’ what that looks like, translates it into a movement, and sends the message out ‘move wrist toward elbow’.

396px-Transversus_abdominisIt seems that one of our favourite muscles to work in Pilates is the transverse abdominis. It’s function is apparently so critical that you can find plenty of online instruction on how to isolate it. ‘HolisticSam’ of http://endyourbackpainnow.com  presents one such example on YouTube. And yet, according to Grays Anatomy “It may be more or less fused with the Obliquus internus or absent.” So it could be that HolisticSam is training  someone to isolate a muscle that they don’t possess. And if that person doesn’t have an identifiable transverse abdominis, does this mean that they cannot stabilise their lumbar spine? Of course not, because their brain doesn’t know how to ‘contract transverse abdominis’, but it does perhaps know how to ‘stiffen lumbar spine’, or maybe ‘ maintain relationship of ribs to pelvis’.

It also seems to me that if we had full conscious control of our individual muscles, then there ought to be far fewer problems with imbalances, asymmetries, and movement disfunction – and those problems should be easier to sort out. This may need further consideration, and it also seems to relate to another bald statement (this one I will claim as my own): ‘Poor muscle balance doesn’t cause poor movement, poor movement causes poor muscle balance’.

As ever, I’d be very happy for a debate to ensue…

Advertisements

Better Than God?

June 5, 2013 — Leave a comment

Most people, if you stopped them in the street to talk about nutrition, would probably know that butter and saturated fat are bad for you. They may well also know that those fats will raise your cholesterol level, and that high cholesterol can kill people. They may well also have some ideas about what constitute healthy fats. After all, this information has been very well disseminated by governments, medical professionals, news media, and producers of healthy fat and cholesterol lowering products.

I know how easy it is to make butter. I made some once when I was overzealous in my cream-whipping, trying to impress someone. Margarine, or Benecol (“Benecol is a range of foods that contain a unique patented ingredient, Plant Stanol Ester, that is proven to lower cholesterol. Benecol is available in a variety of delicious products including yogurts, yogurt drinks and spreads.”) is a different story – I’ve no idea where to start, so I looked it up, and apparently making margarine goes something like this:

It appears that olive oil is also relatively simple to extract from an olive. Certainly the process is mechanised these days, but it’s easy to find instructions for the home enthusiast, requiring nothing more complicated than millstones… It’s also pretty easy to render lard – animal fat, heat, a pan, a jar and some cheesecloth are all that’s required.

Vegetable oil, or seed oil is, like margarine, a different story, as this video shows. In the US they call it ‘canola’, in the UK we call it ‘rapeseed’. (You may not fancy watching the whole thing. If you do, listen out for key words such as: ‘solvent’, ‘chemical extraction process’, ‘wash with sodium hydroxide’*, ‘bleach’. You’ll be glad too to hear that they deodorise the final product…)

It’s pretty much the same process that’s outlined in the flow chart. (Clearly not instructions for making Benecol, because there’s no mention of adding those plant stanol esters….)

What, might you ask, has this got to do with God? You can say God, if you like, or you might choose Mother Nature, for the sake of this particular argument. I’m inclined to simply call her Nature. And here’s my point: someone who is very dear to me is a regular consumer of industrial food products like Benecol margarine, and also happens to be a practicing Catholic. He eats Benecol on his bread (there’s a whole other problem) because medical professionals, and advertising have told him this is what’s best for him, and because I’ve got no credentials for getting into an argument with his doctor.

I don’t practice any religion, so I’m guessing how the thinking might go. At the same time I believe that human evolution has been intimately entwined with us making use of the things that nature provides us with, just as is the case for most living things. Predatory carnivores pick their food from herds of herbivores, antelope graze, killer whales eat seals, seals eat fish (some of the really mean ones eat penguins!), many fish graze on algae etc. Technology changes many things for us – it’s very much easier for us to control fire the it used to be, we don’t need to hunt wild animals any more because we’ve learned how to corral and domesticate them. That list can go on and on. The thing is that technology tends to make life easier for us, and tends to generate revenue for the inventor and/or manufacturer. It doesn’t necessarily make us better (Yes, this was last week’s subject.) And when we’re talking about fat, we’re talking about nutrition. Say it out loud: ‘NUTRITION’ – that which nourishes us. There’s hardly anything more important than this in our lives. If we make changes to how we nourish ourselves, surely they should be based on making us better – not based on making life easier, or generating huge profits for industrial food corporations? (By the way, isn’t it weird that the same company that makes Cornetto, also makes Comfort fabric softener?)

Back to my Bencol eating, Catholic friend. Because it feels cruel, I’ve resisted saying to him: ‘God has given us all this bounty with which we can nourish ourselves. Do you really think that we can manufacture better nourishment in a factory, using enormous resources of energy, chemicals and precious water, than God has seen fit to make easily available to us?’ Again, I’d rather be talking about ‘Nature’ than ‘God’, but that’s largely irrelevant. What kind of arrogance leads us to believe that we are somehow different from any other lifeforms on the planet, and that despite millennia of successful nourishment, garnered with the assistance of  some simple hand tools, and fire, we can ‘create’ food that will do a better job of nourishing us?

Of course the real truth is that it’s probably a combination of greed and fear that leads us to the point where we believe that readily-derived-from-nature is bad, and chemically/industrially manufactured is better. However, if we can strip that away (tough, because fear is what drives capitalism so well) then perhaps we can see that it is vanity and arrogance that tricks into thinking that we (or our doctor) may know better…

Special bonus video (reward for perseverance)

*Yes, it’s caustic soda, but don’t worry, it’s of a higher grade than the oven cleaning or sink unblocking kind.