Fig. 2.

Averaged values of all participants' (a) hip, (b) knee, and (c) ankle kinematics in pre-stretch (solid line), post-stretch involved side (dashed line), and post-stretch uninvolved side (dotted line). Averaged moments of (d) hip, (e) knee, and (f) ankle, and averaged power of (g) hip (j) knee, and (k) ankle. Four averaged stiff-knee gait parameters: 1) peak knee flexion angle, 2) range of knee flexion between toe-off and peak knee flexion, 3) total knee range of motion in sagittal plane, and 4) duration of time between toe-off and peak knee flexion. All 4 stiff-knee gait parameters decreased in post-stretched condition (dashed line) compared with pre-stretched condition (solid line). (*) Indicates statistically significant different parameter (b).