External joint moments at the ankle, knee and hip in the sagittal plane at different phases of the ground contact phase while incline walking determined before (pre) and after (post) the triceps surae and quadriceps femoris muscle-tendon unit exercise-intervention (means and SE).

The x-axis was normalized from 0 to 100% of a stride cycle. The vertical solid lines represent the instants of touchdown (TD) and take off (TO) of the left and right foot. DS: double support phase; SSL: single support phase of the analyzed left leg. *: Statistically significant differences between pre and post (P<0.05).