Figure 3From: Walking speed related joint kinetic alterations in trans-tibial amputees: impact of hydraulic 'ankle’ damping Ensemble mean (± 1 SD) speed normalised stance phase muscle power generation (positive) and absorption (negative) at the hip, knee and ankle (intact limb only) joints when using rigid ( rig F, dotted lines) and hydraulic ( hy A-F, solid lines) ankle-foot devices at slow (left column), customary (centre column) and fast (right column) speed levels. Back to article page