Figure 3From: Postural threat during walking: effects on energy cost and accompanying gait changesEnergy cost. (N = 15) Separate lines represent different postural threat conditions: NT (black triangles) = no threat; LT (blue squares) = Low threat, wide path with perturbations; MT (green diamonds) = Medium threat, intermediate path with perturbations; HT (red circles) = High threat, small path with perturbations.Back to article page