The head and neck have a very important function in the control of posture. The head and neck often unconsciously compensate if there is an abnormality in posture. However, that compensation movement becomes a habit for the patients who have an abnormality in posture, and when the compensatory movement of the head and neck is large it may become a problem. Here, we report the results of dorsal electromyography of what kind of compensation actually occurs by when changing the position of the head and neck in sitting, and in rising from sitting. We also describe an approach that paid attention to excessive compensation of the head and neck. It is difficult to define the right alignment of the head and neck. It is important in alignment of the head and neck that the head and neck do not cause a problem for posture, or movement. In other words, it is important that the head and neck should be in the right alignment which over muscle activities are not required. If the head and neck are in the right alignment, it is easy to get up or look around naturally.