Training one component at a time.
The goal in learning a new movement is to train the nerves and muscles to execute the movement automatically. A pitfall in learning a complex movement is thinking about too many things. Thinking about several parts of the movement makes it slower and each component might not develop with the desired range of motion. To achieve the goal of not having to think about the movement, many deliberate repetitions are required to train the nerves and muscles. If a person tries to think about several components of running at once, the completeness of each component, which require thought as they are learned, could be compromised as the brain changes its focus from one component to the next. The brain may not have time to complete one movement when it must begin thinking about the next movement. Due to this conflict, it may be more efficient to practice one component until it requires less, or no thought. If the component is practiced for several weeks, it may become automatic. Another component can be added as a new focus. It would be efficient to choose a new component that is connected to the original component so that the new effort is complementary to the execution of the original component.