Changes in net joint torques during accomodation to change in surface compliance in a drop jumping task

Abstract This study investigated how subjects adjust the timing of joint torques during accomodation to an unfamiliar compliant surface in order to maximise height achieved in a drop jumping task (dropping from a height onto a surface and jumping for maximum height). Estimates of the energy absorbed and work done by the subject during the period of contact were obtained using a mathematical model of the compliant surface. Power output of joints and net joint torques were also calculated. In the case of all subjects there was a strong relationship ( p p