Fig. 3.

Elongation of the muscle-tendon unit expressed as absolute values (millimeters) (A) and elongation of the muscle (B) and the tendon (C) expressed as strain values (the length change divided by the initial length at the time of the surgery) over the course of the experiment. In A, the muscle length change (white bars) and the tendon length change (hatched bars) are stacked in one bar. The x axes denote the period after the operation. *P < 0.05. **P < 0.01. There were no differences between the values expressed by the absolute scale and those expressed by the strain scale.