The paper presents a new approach to human movements and positions using Descriptive Geometry, a discipline used in 2D and 3D description of object positions in space. Some particular positions of the human body are depicted using a reference system formed by three orthogonal planes: horizontal, vertical and lateral. Positions of arms are described using precise terms used in Descriptive Geometry. The use of precise terms in human positions description can improve communication and understanding of more complex positions in space.