Figure 2.

Decoupling of MTU and muscle fascicle strain by tendon elasticity. (a) The duration of force rise (dark column) was significantly shorter than the duration of force decay (light column). (b) The majority of joint flexion at both the knee (blue) and the ankle (black) occurred during F_rise. (c) The muscle fascicles remained near-isometric during F_rise and even shortened (positive strain) in 50% of the landings, and lengthened substantially (negative strain) during F_decay. Box midlines are data medians, perimeters are quartiles and whiskers indicate data ranges.