What we're talking about here is mental simulation. The idea that just by thinking about something makes you better at doing it sounds too good to be true, but the fact is we can't imagine something without engaging the parts of the brain that are engaged when doing the actual physical activity.

You probably already do it without realising - by thinking about a trip to the shops you'll picture where you're going, which may remind you of somewhere you need to stop off on the way. You may not lie in a darkened room and visualise your trip from start to finish, that's not necessary, but there is an element of rehearsal going on.
Mental rehearsing is formally used in many areas already. For example, an alcoholic trying to kick the booze may be asked to rehearse in his mind how he will respond in certain situations, like when he is offered a beer when at a barbecue with friends. It's works the same way for people trying to get over phobias - by imagining the things around constituent parts of a phobia and controlling their reaction to it they can manage they can build up to tackling the phobia itself.
So what's this go to do with improving your snowboarding then?
Well, mental simulation can build skills too. A study from 2005 showed that mental simulation of a task significantly improved actual performance of that task. The tasks in the study varied greatly so they saw that it applied as much to people doing mechanical tasks as it did to musicians and - here's why you've been reading - sportspeople.
Overall in the study, mental practice accounted for 2/3 of the benefit of actual physical practice! Now surely that's worth paying attention to. What the study says is that mental practice isn't as good as actual practice, but if you're somewhere with no access to a mountain or even dry slopes/artificial snow then you can still improve.
Still sceptical? Type name of your favourite professional sport into google along with 'mental preparation'. I pretty much guarante that the stars of every professional sport are using mental simulation - it's not even used to get ahead of the competition these days, everyone uses it just so they don't fall behind.
So what do you need to do to take advantage? Well, here's the fun part. It can be as simple as watching a snowboarding DVD and putting yourself in the boots of the rider, picturing yourself making those turns. It can be even simpler than that - just lying down or sitting around daydreaming about weaving down a mountain, hitting a jump and nailing the landing. There's really nothing to lose and everything to gain from this one, so have some fun thinking about snowboarding, safe in the knowledge that what you're doing is getting some free practice in!
As an aside, I've used some of the techniques from Snowboard Academy, which I've recommended before. They call it visualisation and have this picture on their page of a Las Vegas hypnotist which nearly put me off the whole thing! Get past that though and there's some valuable stuff to take away which will give your snowboarding lessons a real boost.




