Figure 7.

Comparison of extended flight (filled circles, solid line) and collected flight (open circles, dashed line) duration from 17 racing greyhounds galloping between 14 and 19 m s⁻¹. Extended flight is usually the main ballistic portion of the dog/cheetah gallop as indicated by the dominance of the extended duration, but the difference becomes indistinguishable for the most rapid strides (shortest total duration of non-contact). This indicates that at the highest galloping speeds greyhound galloping approaches a flat trajectory. Extended flight duration, R²=0.644; collected flight duration, R²=0.38 (data courtesy of J. R. Usherwood).