Fig 2. Sequential event of a 65cm jump by a 26g frog.

The images represented lateral views and were displayed chronologically from left to right: (i) beginning of the propulsive phase (the time when resultant GRF exceeds 1 body weight), (ii) the moment when the PL MTU started to shorten, (iii) the moment when maximal force was recorded by the tendon force transducer, (iv) end of the propulsive phase (the time when the frog completely left the force plate and started the aerial phase). The lower limb joints (hip, knee, ankle, tarsometatarsal, and metatarsophalangeal) were digitized and connected with superimposed red lines to show the changes in hind limb geometry throughout the take-off phase.