I read a really interesting article about what the lay of the mane tells you about a horse’s body.
In a nutshell, a foal is curled inside the womb either to the left or to the right. The side they curl to is their naturally more bendy side before undergoing training (as don’t forget that a lot of training focuses on straightness) and this is also the way their mane falls. The mane, so long as it’s not trained to lay on the offside because it’s more traditional, falls to the side the horse bends more easily to, even over bending in some instances. It’s to do with muscle fascia, but I’m afraid that’s getting far too complicated for my little brain to comprehend so for that information I’d recommend asking a physio or Google.
I had never heard of this before, having just presumed horses who’s manes fell left were the left handers of the equine world. Phoenix’s mane falls left and I hadn’t even made the connection between her softer left rein and more resistant right rein.
After reading this article, which you can find here I started to pay attention to all the horses I see and their manes. Of course my observations are limited by the fact that we still subconsciously lay the mane right, and neck rugs compound this laying, so like a lot of lefties, left lay manes can often pass as right lay manes. This limits my observations a bit, but when grooming Phoenix s couple of weeks ago I had a light bulb moment.
She doesn’t wear a rug at the moment and her mane has gone from a very definite left lay, to sitting either left or right with minimal effort and if anything going upright or favouring lying to the right. It’s almost as though her mane has been blow dried to increase the volume by encouraging the roots to stand up. Ladies, you’ll understand what I mean. Before it was very flat to her crest. Thinking about her current way of going, she is much straighter and stronger so presumably the improvement in her muscle tone and strength is causing her mane to change it’s lay. It will be interesting to see whether it stays right, upright, or reverts left as she continues to develop.
I asked a friend who’s a physiotherapist for her opinion on mane lay. Apparently it’s quite common for a young horse’s mane to switch sides as they go through their training and favour one bend more than the other. Additionally, sometimes half the mane flips sides, which indicates neck dysfunction, and the muscles working incorrectly.
I would say that observing the way the mane lies is not a foolproof way of identifying their supple side, because heavy breeds offen have so much mane it has to part down the middle, and rugs with necks encourage the mane onto one side or the other, and some people put a lot of effort into training the mane onto the off side. However, during a schooling session the mane will usually try to revert to it’s natural lay, as I observed whilst teaching last night. But having an understanding for the mane lay and the possible effect on the horse’s way of going, hopefully you can use your observations to successfully feed back into your training plan.