Figure 3
Mean force and power measures as a percentage of stride over a range of speeds. (A) Fore-aft, (B) mediolateral, and (C) vertical ground reaction forces (GRFs), (D) COM power, and (E) summed joint power decreased in magnitude as speed decreased. Vertical axes are shown in both dimensionless (left axes) and SI form (right axes); horizontal axes are shown as a fraction of gait cycle (% of stride) beginning with heel-strike. Data shown were averaged across all subjects (N = 8).
