Fig. 3. Leg and body movements during the jump shown in Fig. 2. (A) The position of the head, the femoro-tibial (FT) joint of the right hind leg, and the tarsi of the three right legs (see cartoon inset in B) are plotted against time. The first movement of a hind leg occurred 1.5 ms before take-off (left arrow and yellow bar) and caused the tarsi of the front and middle legs to lose contact with the ground. Take-off at time 0 ms is indicated by the right arrow and the right, vertical yellow bar. (B) Sequential movements of the six points on the body during a jump. The black arrowheads and the linking black lines show the position of these six points at take-off (0 ms). The corresponding positions of these points at different times during the jump can be read point by point from these positions at take-off, with each point representing the distance moved in 0.5 ms.