Fig. 7
From: Reducing the metabolic energy of walking and running using an unpowered hip exoskeleton
Changes in kinematics during walking and running. A and C The joint angles of hip, knee and ankle over the gait cycle, averaged by the 9 participants for each condition during walking and running. B and D, The bar graphs are the peak flexion (flex.), extension (ext.), dorsiflexion (DF.) and plantarflexion (PF.) angles for each joint and each condition. N = 9; bars, mean; error bars, s.e.m; p values, mixed-model two-way ANOVA (random effect: participant; fixed effect: spring stiffness)