Figure 5.

Perturbation responses vary with drop height. Group mean average positive power (darker), negative power and net power (lighter) (W kg⁻¹) ± s.e. produced at the ankle (a), knee (b) and hip (c) for hop before the perturbation (p⁻¹), the perturbation (p) and the hop directly following the perturbation (p⁺¹). Data are shown for three perturbation heights: 5 cm (left panel); 10 cm (middle panel); 20 cm (right panel) and normalized to body mass. (Online version in colour.)