Figure 3. Normalised time profiles of yaw of the trunk for SC samples taken in the third 25m lap of each 100m swim (1-3: first 100m; 2-3: second 100m, 3-3: third 100m; 4.3: fourth 100m). In accordance with convention, positive indicates anticlockwise rotation (to the swimmer’s left as viewed from above) and negative indicates clockwise rotation (to the swimmer’s right as viewed from above).