Fast Run Cycles An eight frame run cycle — that is four frames to each step — gives a fast and vigorous dash. At this speed the successive leg positions are quite widely separated and may need drybrush or speed lines to make the movement fl ow. Drawing 5 shows the same position as drawing 1 but with opposite arms and feet. Similarly drawings 6 and 2, 7 and 3, and 8 and 4 show the same positions. These alternate positions should be varied slightly in each case, to avoid the rather mechanical eff ect of the same positions occurring every four frames.