So, the auditions are over and next week we will see the top 170 or so contestants (on So You Think You Can Dance) in Las Vegas, half-killing themselves for a spot in the top 20. While sitting and watching the bits of auditions that were aired (and wishing I could see a bit more of some of them, and a bit less of others), I started thinking about something that's come up in conversation with fellow dancers a few times, which is visualization.
Visualization, in the context of fitness, is the practice of mentally rehearsing an action. It can be used to review choreography or plays, to remember the geometry and physics required for a throw or a turn, to imagine the body springing up for a catch or a jetee, etc.
First, let me just say this. No one is going to learn how to do anything simply by watching other people do it. If there is anyone out there watching SYTYCD who isn't a dedicated dance student, and who is thinking "I could do that," and I know you are out there because some of you turn up for the auditions, I'm sorry to break it to you but there is no way to learn how to move except by moving. And, on behalf of the dedicated dance students out there, I'm going to add that many of the movements you see in these auditions are so complex and difficult that most people are incapable of figuring them out without instruction. So get thee to class.
That said, it's been established that, once you know how to generate a movement, how to "see" yourself in that movement, and what the movement feels like when correctly executed, mentally rehearsing can convey almost the same level of benefit as physically rehearsing. This applies in dancing but in other sports, too; a tennis player can mentally review and practice her serve, or a golf player his swing, while sitting on a plane or in a boring meeting. The catch is that you really must understand the movement.
At the most basic level, and using the example of ballroom dancing, once you know how to place your feet to do a box step, and you know how that feels in your body, you can practice it in your head. This mental practice has three benefits: it helps you consciously remember the mechanical process; it helps your unconscious neural pathways establish themselves; and it helps your muscle tissues tone themselves.
This seems very science-fictiony, but studies have shown that concentrated thinking about a movement is basically the same thing, to your brain and body, as actually executing the movement. That's because your brain fires off its signals regardless of whether or not you are moving. The signal jumps through your nerves and activates your muscles, which process the signal; it's a kind of biofeedback. You are not going to get the same gains in strength, flexibility, endurance, agility, and balance through mental practice as you will through physical practice, but the mental practice will truly, on a physiological level, prepare your body to execute the movement correctly the next time you get up to do it physically.
I'm a verbal learner, so for me as a dancer it's been essential to name the actions of dancing and then to attach a physical movement to that name. I can string actions together, knowing how much time they take, what the rhythm is, what my alignment will be to the line of dance or the walls of the room, where my feet go, when my body turns, etc. I can create a sort of hologram in my head and, running a silent commentary along the lines of "half a box, open break, underarm turn, fifth position break, half a box, cross body lead, inside turn, open break" etc, see myself executing those actions. Meanwhile, my brain is firing off signals to the muscles and other tissues involved in the actions. When I stand up to practice the routine, my body is ready for the actions.
In short, I've found visualization an extremely useful practice and recommend it to anyone who is trying to improve a skill. Just don't skip the first step: learning the skill.