Normalized gait cycle of the mean hip (A) and knee (B) flexion/extension waveform of the paretic limb and the normal value: condition T1 (solid), condition T2 (dashed) and condition T3 (dotted).

<p>The solid grey line indicates normal values. Loading vectors for the principal components: PC1 (solid), PC2 (dashed), PC3 (dotted) and PC4 (dashed–dotted) of hip (C) and knee (D) kinematic waveforms. Higher (solid) and lower (dashed) score from PC2 for knee (E) and hip (F) flexion waveforms.