How your brain and body organizes muscle contractions so that a skill or task can be accomplished is called coordination. Coordination is an interesting and complex concept. When you are learning or doing exercises that involve moving your body or body parts in many directions repetitively, the connection between the brain and the body can become confused. This is when people will usually say, “I'm not coordinated enough for this!”
Once most people get to the point where they cannot keep up with the movements, it is usually too much for their brain and body to coordinate and they become frustrated. Does that mean you can't do it at all? Absolutely not! You have to find a way to make the skills make sense to your body before you progress to the next level of complexity.
How do you develop better coordination?
Coordination will improve with practice and appropriate progressions. Remember the saying “practice makes perfect”? This has some truth to it. Keep in mind that it is important to practice at your skill level before advancing to the next level in order to build a solid foundation to progress from. It may be more beneficial to say “perfect practice makes perfect.”
If a student is not given enough time to properly and gradually progress in coordination and balance training, the result would likely be disastrous. The student's arms will likely flail all over the place, his weight would move in the wrong direction, and his feet would move incorrectly.
The correct way to teach these elements to a student so that he does not become overly frustrated would be to teach only a combination of simplistic movements (four straight punches, for example) in the beginning. This helps beginning students avoid thinking that they are too uncoordinated for Krav Maga.
Beginner students must master these initial four straight punches before moving on. Once they have, the instructor can then move on to teach them hook punches, then uppercuts, and so on. Once they've reached this point, it may be appropriate to integrate three or four different punches into a short punching combination.
More often than not, the average beginner (depending on previous experience) takes at least one year of training in order to master that first particular combination alone with any quality. Of course, this amount of time could be shorter or longer for you depending on how much time, sweat, and effort you are willing to put into it.