ABSTRACT
The complex structure of the human body, the different ranges of motion in the various joints, and the many coordination possibilities in using them, add to the richness of movement. Once a clear understanding of the existing forms of flexion and extension is reached, the eye can differentiate between the forms. Three distinct forms of flexion are defined by special terminology and signs. Bearing in mind other disciplines and terminology in movement analysis, the Language of Dance® has chosen those terms which have generally proved to be most appropriate. The three forms are: contract, fold, and join. The specific forms of extension relate directly to those of flexion. They are: elongate, unfold, and separate. Contraction means shortening, drawing nearer, and this shortening occurs on an established spatial line. Elongation means drawing out, lengthening on the established line. Because the hand has additional joints, contraction usually produces curves rather than angles.
