Sept. 8, 2010 -- "Good" dancers did wider and bigger movements of the head, neck and torso, and did faster bending and twisting movements of their right knee (greater movements of the right knee rather than the left were to be expected, as 80 percent of the dancers favored their right leg). In contrast, "bad" dancers tended to be stiff and plod -- and throwing their arms around was no substitute for fast, variable movement of the central body region. Read More