Fig. 3

Canonical plots comparing ratings made by each scale. For example, when Borg perceived exertion rating was 10, Dalhousie leg fatigue ratings averaged just under 7 (dashed line). Alternately, when subjects rated leg fatigue with the sixth picture on the Dalhousie scales, averaged Borg rating fell between 6 and 7 (solid line). Similarly, when Borg dyspnea rating was 10, Dalhousie leg fatigue ratings averaged 7. Alternately, when subjects rated dyspnea at the fifth picture of the Dalhousie scales, averaged Borg rating was approximately 5