Rudolf Laban (1879 – 1958), was a dance artist and theorist, who devised methods for analysing and describing movement that are used to this day. One of these ways is ‘effort’ or ‘dynamics’ which describes the inner intention of a movement. Effort has four subcategories - space (direct or flexible); weight (stong or light); time (sudden or sustained); and flow (bound or free). The first three of these can be combined into eight ‘action drives’ which are named flick, dab, float, glide, wring, press, slash, and punch. For example flick combines indirect, light and sudden, and punch combines direct, strong and sudden.